Re: Embedded Linux Kickstart course?
http://ieeeboston.org/edu/class_room/2013_spring/c9-advanced_linux.html * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Wed, Apr 17, 2013 at 11:30 AM, Drew Van Zandt wrote: > IEEE Boston has offered courses like that in the past; you might check the > instructor and ping him to see if another is being offered via the IEEE or > other avenues. > > http://ieeeboston.org/edu/class_room/past_offerings/past_crs_offerings.html > > * > Drew Van Zandt > Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) > Domain Coordinator, MA-003-D. Masquerade aVST > * > > > On Wed, Apr 17, 2013 at 11:18 AM, Rudolph, Frank > wrote: > >> I am interested in locating a rigorous course in embedded Linux. >> >> Does anyone know of such a course that is hands-on and covers the latest >> in Linux real-time extensions? >> >> Thanks - Frank >> >> ** ** >> >> Frank Rudolph, Ph.D., P.E. >> >> Software Team Leader >> >> Beacon Power, LLC >> >> 65 Middlesex Road >> >> Tyngsborough, MA 01879 >> >> 978-661-2803 - Office >> >> 603-689-5366 - Cell >> >> 978-694-9127 - FAX >> >> ** ** >> >> ___ >> gnhlug-discuss mailing list >> gnhlug-discuss@mail.gnhlug.org >> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ >> >> > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Embedded Linux Kickstart course?
IEEE Boston has offered courses like that in the past; you might check the instructor and ping him to see if another is being offered via the IEEE or other avenues. http://ieeeboston.org/edu/class_room/past_offerings/past_crs_offerings.html * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Wed, Apr 17, 2013 at 11:18 AM, Rudolph, Frank wrote: > I am interested in locating a rigorous course in embedded Linux. > > Does anyone know of such a course that is hands-on and covers the latest > in Linux real-time extensions? > > Thanks - Frank > > ** ** > > Frank Rudolph, Ph.D., P.E. > > Software Team Leader > > Beacon Power, LLC > > 65 Middlesex Road > > Tyngsborough, MA 01879 > > 978-661-2803 - Office > > 603-689-5366 - Cell > > 978-694-9127 - FAX > > ** ** > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Resume length and history
On the reviewing/receiving end, I generally find that unless it's a recent grad, one page is insufficient for a technical resume, two is about right, and a third page is generally only useful if the first two were pretty good. On the other end, I figure that's exactly what I'll write. Two pages of meat, one page of e.g. nonprofessional experience that might be germane (I have technical hobbies). Trying to write a one-page resume is unbearable. Again on the receiving end, if a resume from a recruiter looks like hell but has a few interesting items, I'll sometimes email the prospect and ask for a copy of their resume that has not been ruined by recruiters. To any engineering recruiters on the list: Don't screw up your guys' resumes unless you are SURE you know what you're doing. It gets in the way more often than not, in my experience. I don't want to hear YOUR voice or get things in the format you think is important, I want to know what the ENGINEER thinks is important, in their voice, because that's what I'll be working with. Second/third putting education last unless you just graduated. Mine is last except for a one-liner indicating I've had a Secret clearance before, in case it's germane, and a standard references-on-request tag. * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Tue, Apr 9, 2013 at 12:06 PM, David Hardy wrote: > I'm nearly sixty and have had a bunch of jobs over the decades, not all of > them IT and not all of them Linux. So I tailor the resume to the specific > position and keep it to two pages, max. I then expand on whatever in a > cover letter and interview, if I get one. I've seen other peoples' resumes > and it is as you describe; no consistency and everything from cryptic > geek-speak acronyms to web-based sound-and-video productions to eight pages > of small print listing the person's detailed life history. I have also > help to edit/fix resumes for people and had them down to nice, concise, > informative two-page deals and then they insisted I hadn't included enough > info and gone back to their four- and six-page horrors and never got called > for an interview thereafter, becauseyesthe screening HR drones > tossed them instantly. > > It is also worth noting that the last stat I saw on this indicated that > there is a roughly four-percent retention and examination of resumes in > general. The rest, 96%, are tossed. > > In my half-century of experience, jobs are gotten by getting via hook or > crook to the hiring manager and showing them how you can help them/make > their job easier. Period. > > Regards from northwestern Vermont, under the F-16s > > > > > On Tue, Apr 9, 2013 at 11:49 AM, Kenny Lussier wrote: > >> Hi All, >> >> Not specifically Linux-related, but I was wondering what other people are >> seeing/doing with resumes these days. I have seen everything from a 2-page >> resume for someone with 20 years of experience to a 15-page resume for >> someone with 2 jobs over 3 years (it looked like the output of cat >> ~/.bash_history). How far back should a resume go? How long should it be >> before you stop reading it? I'm seeing absolutely no consistency in >> resumes, and the ones that come from recruiters seem to be the worst >> formats. >> >> C-Ya, >> Kenny >> >> >> ___ >> gnhlug-discuss mailing list >> gnhlug-discuss@mail.gnhlug.org >> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ >> >> > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: The Linux
I find Ubuntu tasty for desktops, but not quite baked enough for servers. Debian is nice and meaty for that, and the two are quite similar. Tastes vary, though. * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Thu, Mar 21, 2013 at 4:15 PM, Ted Roche wrote: > On Thu, Mar 21, 2013 at 4:04 PM, Rich Duke wrote: > > What is the most delicious flavor of Linux I should be using? > > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Free to a good home
I could use the WRT54UG. * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Sun, Mar 3, 2013 at 9:21 PM, Dan Miller wrote: > I have the following items that are free to a good home: > > Linksys BEFSR41 4 port 10/100 home router > Linksys WRTU54G-TM 4 port router with T-Mobile hotspot and 2 phone lines > -- > Dan Miller > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: automounting usb devices
Unload and reload on one command line, or better yet with a script you have debugged. Also, could you have reloaded the USB module via SSH? * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Mon, Feb 4, 2013 at 8:24 AM, David Rysdam wrote: > On Mon, 04 Feb 2013 05:46:53 -0500, David Rysdam wrote: > > On Mon, 4 Feb 2013 07:19:38 + (UTC), "mad...@li.org" < > jonhal...@comcast.net> wrote: > > > Sometimes there is a zombie process that kept the last device from > > > completely un-mounting, and therefore the mount point or driver might > > > think it is still active from the last mount. You might check to see > > > if some zombie is still around that might be clogging it. Try an > > > "lsusb" to see if it still thinks the device is there, even if it is > > > not plugged in. > > > > Good thinking. Bad news: lsusb hangs. Good news: that's more evidence > > that something is toasted. In fact, I realize now the reason I can't > > restart HAL is that it's in uninterruptible sleep. > > Going on your theory of "device still open" I did an lsof. Saw some > modules in there, which gave me the idea to unload usb. Lost my keyboard > and mouse. D'oh. Rebooted via ssh. Oh well. > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [GNHLUG] BBQ dates and decisions
Do Aug 25th **AND** Sept 1. You can never have too much BBQ... ;-) * Drew Van Zandt Artisan's Asylum Craft Lead, Electronics & Robotics Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Mon, Jul 30, 2012 at 11:55 AM, Ben Scott wrote: > Results from the poll are in (names and votes are published now; if > you're missing, let me know): > > http://doodle.com/aymvdxbgbcq8ftde > > The clear loser is Sept 8. > > It's a veritable tie between Aug 11 and Sept 1. Both had 9 "no" > votes. Sept 1 had 9 "yes", while Aug 11 had only 8. But Aug had 2 > "if-need-be", while Sept only had 1. > > Sept would give us more lead time, but may conflict with other labor > day activities. Aug 11 would be more summerish, but gives us less > than two weeks to procrastinate ^W plan. > > In the meantime, just to make things more indecisive, the Drupal > people have offered to join forces with GNHLUG for their BBQ on Aug > 25. You can see their announcement > <http://groups.drupal.org/node/243993> and invitation > <http://www.mail-archive.com/gnhlug-discuss@mail.gnhlug.org/msg30570.html > >. > > Short of making an arbitrary decision, I'm out of ideas. Please > post thoughts and suggestions to the gnhlug-discuss list. (Replying > to this message should do, if you're subscribed.) > > If a clear consensus doesn't emerge by Wed 1 Aug morning, I will > fall back to arbitrary -- possibly a dice roll. > > -- Ben > ___ > gnhlug-announce mailing list > gnhlug-annou...@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-announce/ > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Options for hosting servers in my basement?
Even with service reputed to be very, very good for a home connection, I eventually got sick of the quality and reliability of doing this. A colo is MUCH more reliable. Build a 1U server, talk to Brian Karas. (CC'd) * Drew Van Zandt Artisan's Asylum Craft Lead, Electronics & Robotics Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Mon, Jul 2, 2012 at 4:42 PM, Arc Riley wrote: > Its not an "at home" solution, but I've been very (VERY) happy with > Hurricane Electric. > > They have a "green" dedicated server hosting for $70/mo, Atom 330 dual > core, 100m unlimited, small ipv4 subnet and native ipv6. > > I've run Icecast audio/video streams on this with no issues maxing out the > 100m ethernet. > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: ipv4ll fallback
You could add a second IP on the interface - e.g. eth1 as dhcp, eth1.0 as a static. * Drew Van Zandt Artisan's Asylum Craft Lead, Electronics & Robotics Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Mon, Feb 6, 2012 at 10:34 AM, Thomas Charron wrote: > Is there any easy way to configure dhcp to fallback to a link local > address, should dhcp requests fail? > > I am currently configuring my network stack statically via > /etc/network/interfaces. The application broadcasts via a built in > uPnP stack, so it can function if it doesn't have an IP address. But > it's headless, so without the network, there's no way to reconfigure > it. > > The idea is, in a static IP environment, service would boot, detect > the link local address, which would allow them to ssh into the machine > and reconfigure it for a static address is needed. > > I could have it configured static by default, and as part of the > provisioning reconfigure it for dynamic. > > Really just wanted to see if someone had a 'just do this' idea. > > auto lo > iface lo inet loopback > > auto bridge > iface bridge inet dhcp >bridge_ports eth0 eth2 eth3 >bridge_fd 9 >bridge_hello 2 >bridge_maxage 12 >bridge_stp off > > auto eth1 > iface eth1 inet static >address 192.6.94.4 >network 192.6.94.0 >netmask 255.255.255.0n UIP >broadcast 192.6.94.255 > > -- > -- Thomas > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: ManchLUG needs a new home!
I can heartily recommend Strange Brew, though I'm Boston-area these days so I have not been lately. * Drew Van Zandt Artisan's Asylum Craft Lead, Electronics & Robotics Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld) Domain Coordinator, MA-003-D. Masquerade aVST * On Tue, Jan 24, 2012 at 2:04 PM, Shawn O'Shea wrote: > On Tue, Jan 24, 2012 at 1:49 PM, Kenta Koga wrote: > >> Sounds good to me. I've been meaning to get in there to talk to the >> management and request the function room. >> >> I'd also started to talk to Jamie @ the ABI but my preference is for a >> place where there is beer. >> >> > Just for an additional suggestion...I've never been, but I here Strange > Brew is good (at least as far as beer goes) and they have a function room > (or so says their website) - http://www.strangebrewtavern.net/ > > One of these days I'd love to make it up to Manchester for a ManchLUG > meeting. It's a long hall from Lexington, MA (but a short ride home to > Hudson). I make PySIG when I can, as well. > > -Shawn > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Label-printers for CUPS/Linux?
Addendum: Use Kbarcode and you probably won't even have to work out alignment issues so much. Works the first time every time for me. --DTVZ On Thu, Jul 14, 2011 at 3:11 PM, Ken D'Ambrosio wrote: > If by "party-guests", you mean something that occurs a handful of times, > I'd probably suggest just using a regular printer, and labels such as > you'd find at Staples. > > A "real" label printer usually uses thermal paper, and costs a pretty > penny. Additionally, drivers can be... "interesting." (Though I did > notice Zebra listed the last time I did a CUPS install.) > > Nutshell version: unless you're running an entertainment business, and > this is something that will be occurring with great regularity, just hit > Staples, and use some sticky labels. You'll throw away a sheet or four, > working out alignment issues, but then you'll be able to run off as many > as you want pretty quickly. If you *are* running an entertainment > business (e.g., a bar), then a label printer will definitely save you > money... in the long run. > > $.02, > > -Ken > > > On Thu, July 14, 2011 3:00 pm, Joshua Judson Rosen wrote: > > I'm looking at possibly getting a label-printer > > to hook up to one of my Debian machines, and hoping that maybe someone > here > > can give me some guidance because (1) I've never had a PC-driven > > label-printer and (2) I might be doing something unusual...: > > > > I want to use libvisualid to generate tags to keep my > > party-guests' drink-cups straight. If I can just print the glyphs > directly > > onto smallish, sticky paper labels, then then the whole thing is > > straightforward. > > > > So, I'm looking for a label-printer that will work with > > my Linux machine, and that can print arbitrary graphics rather than just > > text or bar-codes. > > > > Any suggestions? > > > > > > -- > > "Don't be afraid to ask (λf.((λx.xx) (λr.f(rr." > > > > > > ___ > > gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org > > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > > > > > > > > > > > > > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > -- * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld A:Walton Shipley) *Artisan's Asylum Craft Lead, Electronics & Robotics ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Random request
I know the usual suspects when I go to buy, I just figured it made more sense to see if someone had a box lying around first. My hackerspace is the Artisan's Asylum, in Somerville, MA - currently 13 Joy Street with 9000 square feet, full metalworking and woodworking shops, MIG + TIG welding, Electronics & Robotics, Fiber Arts, and a bike shop. In a month or so (we signed the letter of intent last night) we're moving to a new 25,000 square foot space, so we can add things like a laser cutter and a big 3D CNC mill (currently we only have 2D CNC mill, 3D CNC wood router). We also need more space because we have a bunch of people on the waiting list to rent space... http://www.artisansasylum.com/ --DTVZ On Tue, Jun 21, 2011 at 5:39 AM, David Rysdam wrote: > On Mon, 20 Jun 2011 22:38:43 -0400, Drew Van Zandt < > drew.vanza...@gmail.com> wrote: > > The hackerspace I volunteer for has a marked lack of through-hole > resistors > > with values above 100k, and it occurred to me that one of you guys might > > have a crate of them floating around his basement in need of a home. (I > > believe this probable because I have a bunch of things along this line, > just > > no through-hole resistors anymore.) > > I usually hate when my requests for donations are met with links to > storesbut I'm going to do the same to you anyway. The main reason > being that I'm not really promoting the item so much as the > source. The item: > >http://www.sciplus.com/singleItem.cfm/terms/13392 > > I think I bought that back in the day. I know I certainly bought > something they seem to no longer have, which was a grab bag of assorted > resistors, capacitors, pots and other misc, which got me started quite > well. > > American Science & Surplus is a great resource for hackerspaces. They've > got motors, microscopes, measuring reels and...umm..monkeys? Plus > their catalog is hilarious (you really have to order the paper one and > read it through to get the full effect). Not everything there is a good > deal, but the stuff that really is surplus usually is. > > Which is your hackerspace, btw? > _______ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > -- * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld A:Walton Shipley) *Artisan's Asylum Craft Lead, Electronics & Robotics ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Random request
The hackerspace I volunteer for has a marked lack of through-hole resistors with values above 100k, and it occurred to me that one of you guys might have a crate of them floating around his basement in need of a home. (I believe this probable because I have a bunch of things along this line, just no through-hole resistors anymore.) Anybody? -- * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld A:Walton Shipley) *Artisan's Asylum Craft Lead, Electronics & Robotics ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Colo
You know how sometimes you have that tech support experience you just HAVE to complain about, it's so bad? Well, I didn't. What I got was the exact opposite. I have 1U of space from Brian Karas of GNHLUG, I've had a server there for years. It had some issues a week or so ago, and he was really responsive and effective. I was back up (though limping due to hardware weirdness) very shortly after I contacted him, and then when I had to swap out the hardware he made that really easy, too. Anyway, I just wanted to share. -- DTVZ Artisan's Asylum Craft Lead, Electronics & Robotics ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Terminal server? (Kinda.)
At low speeds like 9600, I've personally run RS232 2500+ feet. You **should** use RS485 or something more robust, but what you should do and what you have resources for don't always match. --DTVZ On Fri, Mar 4, 2011 at 2:17 PM, Jerry Feldman wrote: > Do I read you correctly that you are going to individually wire each > RS232 port? > How are these locations going to be connected to the home office. I > think that RS232 is a max of 50 ft or so. Or are these going to be > connected to some in-store modem connected to the phone system or > possibly with an in-store computer connecting to the Internet or to the > home office via dialup. > Back in the early 1970s we put POS (DEC PDP-8M) devices into all the > Burger King stores with a low cost modem card. > > > > On 03/04/2011 01:55 PM, Ken D'Ambrosio wrote: > > Hey, all. My company's about to open up several locations across the > > country. We're going to have cash registers on-site -- good ol' RS-232 > > connections. We're also getting software that can talk to these > > computers. > > > > Now, I know RS-232 is fairly robust, but it strikes me that even it might > > lose signal integrity over 3K miles. What I'm thinking about (if anyone > > has better ideas, please talk up!) is something like this: > > > > [Register] <- RS-232-to-USB -> [Wall Wart] <- VPN -> [Home office > computer] > > > > So, as I see it, there are two minor issues: > > > > 1) Making the Wall Wart (e.g., > > http://www.linuxfordevices.com/c/a/News/100-Linux-wallwart-launches/ ) > act > > as a terminal server, and > > > > 2) Having some sort of virtual RS-232 adapter on the Windows system > > > > Anyone got any suggestions? Done anything like this? Etc. > > > > > -- > Jerry Feldman > Boston Linux and Unix > PGP key id: 537C5846 > PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB CA3B 4607 4319 537C 5846 > > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > -- * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld A:Walton Shipley) *Artisan's Asylum Craft Lead, Electronics & Robotics ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Terminal server? (Kinda.)
There are RS-232 to Ethernet bridges as embedded devices, many of which have (at least) Windows drivers that make them show up as regular old serial ports. http://www.barcode-manufacturer.com/serial-ethernet/ <http://www.barcode-manufacturer.com/serial-ethernet/>We use Moxas in some of our industrial systems; they appear to also have Linux drivers. No need to reinvent, no need to maintain codebase. http://www.moxa.com/support/download.aspx?d_id=1662 --DTVZ On Fri, Mar 4, 2011 at 1:55 PM, Ken D'Ambrosio wrote: > Hey, all. My company's about to open up several locations across the > country. We're going to have cash registers on-site -- good ol' RS-232 > connections. We're also getting software that can talk to these > computers. > > Now, I know RS-232 is fairly robust, but it strikes me that even it might > lose signal integrity over 3K miles. What I'm thinking about (if anyone > has better ideas, please talk up!) is something like this: > > [Register] <- RS-232-to-USB -> [Wall Wart] <- VPN -> [Home office computer] > > So, as I see it, there are two minor issues: > > 1) Making the Wall Wart (e.g., > http://www.linuxfordevices.com/c/a/News/100-Linux-wallwart-launches/ ) act > as a terminal server, and > > 2) Having some sort of virtual RS-232 adapter on the Windows system > > Anyone got any suggestions? Done anything like this? Etc. > > Thanks! > > -Ken > > > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > -- * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld A:Walton Shipley) *Artisan's Asylum Craft Lead, Electronics & Robotics ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: rc script running twice ???
I've never used the ps f view (yes, I know...how odd); handy. root 470 1.1 2.4 2992 1516 ttyS0Ss+ 00:00 0:00 /bin/sh /etc/init.d/rc 2 root 496 0.1 1.9 2808 1232 ttyS0S+ 00:00 0:00 \_ /bin/sh /etc/rc2.d/S40init_xuarts start root 498 0.0 0.8 2808 504 ttyS0S+ 00:00 0:00 \_ /bin/sh /etc/rc2.d/S40init_xuarts start root 500 0.1 0.9 1676 576 ttyS0S+ 00:00 0:00 \_ sed s/ttyname=// root 502 0.0 0.4 1712 308 ?Ss 00:00 0:00 /usr/local/bin/xuartctl -d --speed=115200 --mode=7e1 -p 1 root 503 0.0 0.3 1720 244 ?Ss 00:00 0:00 /usr/local/bin/xuartctl -d --speed=115200 --mode=7e1 -p 1 Note the -d daemonizes xuartctl in the script below: ts7500:/etc/init.d# more init_xuarts.sh #!/bin/sh # Server for all first. xuartctl -d # Barcode ln -s -f `/usr/local/bin/xuartctl -d --speed=115200 --mode=7e1 -p 1 2>&1 |sed s/ttyname=//` /dev/barcode # Copleys ln -s -f `/usr/local/bin/xuartctl -d --speed=9600 --mode=8n1 -p 2 2>&1 |sed s/ttyname=//` /dev/copley # Watlows ln -s -f `/usr/local/bin/xuartctl -d --speed=38400 --mode=8n1 -p 5 2>&1 |sed s/ttyname=//` /dev/watlow On Thu, Jan 27, 2011 at 3:21 PM, Joshua Judson Rosen wrote: > Drew Van Zandt writes: > > > > Debian Linux (embedded), I'm in runlevel 2, and I'm seeing this when I > run ps > > aux: > > > > root 496 0.0 1.9 2808 1232 ttyS0S+ 00:00 0:00 /bin/sh > /etc/ > > rc2.d/S40init_xuarts start > > root 498 0.0 0.8 2808 504 ttyS0S+ 00:00 0:00 /bin/sh > /etc/ > > rc2.d/S40init_xuarts start > > > > S40init_xuarts is a script of mine that I just put in /etc/init.d/ and > linked > > from rc2.d. > > > > Why is it running twice? > > Can you do this again, but with "ps faux" instead--to capture the > process-hierarchy? > > -- > "Don't be afraid to ask (λf.((λx.xx) (λr.f(rr." > -- * Drew Van Zandt Cam # US2010035593 (M:Liam Hopkins R: Bastian Rotgeld A:Walton Shipley) *Artisan's Asylum Craft Lead, Electronics & Robotics ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: rc script running twice ???
Two distinct copies; when I run it from the command line, it backgrounds the services I'm trying to start, and works quite well. I do know that if one runs the script twice in parallel (e.g. start a second copy before the first finishes) that they both hang and never finish. (There are also two identical copies of one of the commands in the script in the process table, hung and waiting). Everything the script runs is run as a daemon. (They do need to be started in order, though hardware init for 8 UARTS implemented in an FPGA.) --DTVZ On Thu, Jan 27, 2011 at 2:38 PM, Kyle Smith wrote: > On Thu, Jan 27, 2011 at 2:26 PM, Drew Van Zandt > wrote: > >> Debian Linux (embedded), I'm in runlevel 2, and I'm seeing this when I run >> ps aux: >> >> root 496 0.0 1.9 2808 1232 ttyS0S+ 00:00 0:00 /bin/sh >> /etc/rc2.d/S40init_xuarts start >> root 498 0.0 0.8 2808 504 ttyS0S+ 00:00 0:00 /bin/sh >> /etc/rc2.d/S40init_xuarts start >> >> S40init_xuarts is a script of mine that I just put in /etc/init.d/ and >> linked from rc2.d. >> >> Why is it running twice? I've gone through the first page of >> possibilities from a google search, I'm hoping one of you can point out my >> obvious silly mistake, >> > since I'm blanking. >> > > Is 496 the parent of 498, or are they two distinct copies? If so, it's > probably because it starts with #!/bin/sh. > > Typically your S* scripts should exec and background whatever service > you're trying to start, not stay running once the system is loaded. > Otherwise ps aux would be full of S* scripts. You might want to look at > start-stop-daemon in Debian. > > - Kyle > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
rc script running twice ???
Debian Linux (embedded), I'm in runlevel 2, and I'm seeing this when I run ps aux: root 496 0.0 1.9 2808 1232 ttyS0S+ 00:00 0:00 /bin/sh /etc/rc2.d/S40init_xuarts start root 498 0.0 0.8 2808 504 ttyS0S+ 00:00 0:00 /bin/sh /etc/rc2.d/S40init_xuarts start S40init_xuarts is a script of mine that I just put in /etc/init.d/ and linked from rc2.d. Why is it running twice? I've gone through the first page of possibilities from a google search, I'm hoping one of you can point out my obvious silly mistake, since I'm blanking. -- * Drew Van Zandt Artisan's Asylum Craft Lead, Electronics & Robotics * ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Power cables
ESS (Electronic Surplus Store) in Manchester may have them. --DTVZ On Mon, Nov 22, 2010 at 11:53 AM, Ed Robbins wrote: > Does anyone know where I could pick up C13 to C14 power cables locally? > > Ed > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > -- * Drew Van Zandt Camarilla member US2010035593 * Masq: Liam Hopkins Req: Bastian Rotgeld ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Racks
Hi all! I've gotten sucked into managing the Electronics & Robotics crafts area at a collective down in Somerville - http://www.artisansasylum.com/. I've managed to arrange for most of the computers in the space to be running Ubuntu already, except for a few personal machines. (And I'm working on those. ;-) ) Anyway, I was thinking that the E&R craft area could greatly benefit if I could find a rolling 19" half-rack and a rolling 10" full rack to bring to the space. I know ESS probably has some if I can get the budget for it, but I thought I'd see if there were any around that could be donated - it's a 501(c)(3) nonprofit, so donations are tax-deductible. Any suggestions? --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Interesting robotics talk by DARPA robotics guy
Forwarding this because it seems like something GNHLUG folks might be interested in... --DTVZ All, I'm excited to announce that Artisan's Asylum will be hosting a presentation and discussion on the state of the art of robotics technology and its ramifications on our current society, led by Dr. Gill Pratt, Program Manager at the Defense Sciences Office of DARPA. Please take a look at the eventbrite event and descriptions below; please note that admittance will only be granted by advance ticket purchase in order to ensure enough refreshments and seating, and tickets will not be sold at the door. The event is here: http://www.eventbrite.com/event/1036543329 - - - - - Description: Our society is infatuated with robots. They make our cars, do our dishes, perform surgery on us, explore the outer reaches of space for us, and more. All of the easy tasks that can be automated in a factory setting already have been, and competent teams of bright people are working very hard on automating the harder tasks. Assuming we manage to reach our goal of automating all the drudgery and menial labor out of our lives, what's left? Can we cut manufacturing and utilitarian creation out of our economy and still function as a society? What would a meaningful life look like if every repetitive and dull task was done for us? This talk is focused on the impact robotics technology could have on society as we currently experience it, and will be formatted as an initial presentation followed by a group discussion of the potential directions the industry could take. It will also include an overview of the advanced robotics research programs Dr. Gill Pratt manages at the Defense Sciences Office of DARPA (the Defense Advanced Research Projects Agency), in addition to including a brief overview of previous projects he oversaw in the Biomimetic Robotics Lab at Olin College and the Legged Locomotion Laboratory at MIT. Biography of Gill Pratt, Ph.D.: Dr. Gill Pratt received a doctorate in electrical engineering and computer science from MIT, where he was an associate professor and director of the Legged Locomotion Laboratory. He then proceeded to become a professor and Associate Dean of Faculty Affairs and Research at the Franklin W. Olin College of Engineering, where he was also the director of the Biomimetic Robotics Laboratory. He has recently become a Program Manager in the Defense Sciences Office of DARPA, where his main research interests include novel robotic design and fabrication techniques, new human/machine interfaces that enhance collaboration, and new actuation techniques designed for improving robotic mobility and manipulation. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [OT] movie trailer - .Net vs Java
There were also bits of the video that might be flagged as inappropriate for children; could that be germane? --DTVZ On Mon, Jun 28, 2010 at 2:33 PM, Larry Cook wrote: > Michael ODonnell wrote: > >> I'm not particularly a fan of Java but this is still funny: > >>http://www.youtube.com/watch?v=KrfpnbGXL70 > > [...] > >> First time I've tried a YouTube video and gotten "please register". > >> Ouch. Didn't know they'd done that. > > > > Dang! I guess I didn't notice because I was already signed in for > > unrelated reasons. > > I watched the video Friday without any problem and I don't have a Google > or YouTube account that I could have been logged in to. Did this > "feature" just go active over the weekend? > > Larry > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: network monitoring of firewalled/NAT'd systems
Intellipool can run in distributed mode, where you have one monitoring server inside each firewall that reports back home to the mothership. http://www.intellipool.se/ Not *quite* what you asked for, but may serve. --DTVZ On Tue, May 18, 2010 at 5:48 PM, Michael ODonnell < michael.odonn...@comcast.net> wrote: > > > I wrote: > >We want to monitor (from a central server at HQ) the health and > >performance status of multiple machines [mostly Windows >-( ] at > >each of multiple customer sites despite them being NAT'd/firewalled. > > ...and then mentioned a bunch of features we're dreaming about. > > A more specific question: does anybody even know of a package that > can do "passive monitoring"? IOW, in our scenario some sort of > agent on each workstation would be responsible for initiating a > connection to HQ and pushing its own monitoring data back to our > central server since we'd not be able to initiate connections in > the other direction as they'd be blocked at the customer's firewall. > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: OpenStreetMap compatible GPS?
At college (1995 or so in specific) I noticed a definite correlation between engineering students whom I would actually trust to design something my life depended on (bridges, pacemakers, etc.) and the ability to do math without a fancy calculator. The newer graphing calculators doing all the systems of equations etc. for you just made the divide all the more apparent. Naturally, as a *nix geek, I had only a reg'lar old calculator (TI-35X 4-eva). I'm cutting-edge like that. I still think graphing calculators are dumb. A regular calculator because carrying around sine and cosine tables is easier that way, and then MathCAD/Matlab/etc. for serious number crunching. --DTVZ On Wed, Apr 28, 2010 at 1:19 PM, Ken D'Ambrosio wrote: > On Wed, April 28, 2010 12:07 pm, Jon 'maddog' Hall wrote: > > > It is the same thing as learning how to add, subtract, multiply and > > divide before you start using a calculator. > > In '76, my grandfather -- a mathematician -- bought me my first > calculator. (A 7-digit red LED Commodore, no less. And, yes, that's the > same Commodore.) My next-door-neighbor predicted the demise of all > abilities to compute when our brains went soft because of calculators. > Fast-forward to high-school physics, and our teacher decided to force logs > on us... by way of a sliderule. I was the fastest in my class -- but it > still made me wonder if similarly-dire Luddite-esque predictions hadn't > been made when they'd come along. > > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Internet history (was: We need a better Internet)
Walt, Mickey, Minnie, Sleepy, and friends... Oh, yes, and I remember that somehow Satan (ran out of Disney names...) had a vote to make a quorum for the cluster, which was a huge headache to find. Satan, of course, was on the far end of the building from Walt (obviously only Walt was *supposed* to have a vote), on a user's desk, over thicknet. The rest of the workstations were tapped off that on 10Base2, and of course from time to time someone would run the end of the cable straight in to an Ethernet card instead of using a T and a terminator. *shudder* The network runs were *weird*, too, since the classified and unclassified cables couldn't come within a meter of each other. You are in a maze of twisty little passages, all alike. It took us months to figure out what was going on, since we had to keep the system up as much as possible during working hours... and they kicked us out and locked the vault door on the front of the building at 6 sharp. That and there were only two of us, and we kept getting sent out to do temporary cluster installs on subs. I am a BIG fan of star topology (including in non-network electrical systems) as a result. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [OT] Terminal width
> press an icon that dials SmarTraveler The Android phones' Google Maps app (or mine, anyway) does traffic that seems to be up to date, and even turn-by-turn voice directions. I'm pretty happy that things which were science fiction aren't anymore. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [OT] Terminal width
> I note the most important programming tool is present, located about > one foot to the left of the keyboard. ;-) Indeed; that would be my afternoon cup of tea. :-) I have a perhaps interesting strategy, which is to save tedious, repetitive tasks (which cannot be easily or safely automated, anyway) for the early morning before the $MORNING_BEVERAGE kicks in. I leave careful instructions for my morning self at the end of the day. Hopefully the convergence of TVs, monitors, and cell phone displays (which, I am told, are optimized for viewing in either orientation) will result in a unified display with all of the best features... for 10 cents per square inch or similar. ;-) --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [OT] Terminal width
Germane to this: http://oddones.org/lj_pics/drew_desk_crop.jpg The Sapphire card with ATI driver lets me rotate the rightmost screen. I do still want to move the upper and lower panels to the leftmost screen, but it's pretty nice as-is. Weirdness: Turn off Xinerama and restart X so you can tell it to rotate one of the screens. Restart X so it can rotate the screen. Turn Xinerama back on now that the screen is rotated. Restart X again. I also saw a transient oddity where I couldn't move my mouse pointer to the rightmost screen. Going to System -> Pref -> Display and checking "mirror screens" fixed this, inexplicably. I've seen it restrict my mouse pointer to the shape of my right-hand-screen while on the left-hand screen as well, once. All of these things were during sessions where I'd mucked with settings, though, it doesn't seem to happen anymore. Also, while discussing screen rotation etc. with a colleague, he mentioned that the usual LCD subpixel arrangement (the RGB dots) on LCDs was designed primarily for the typical orientation, and that if rotated it could cause eyestrain. I haven't found any documentation on this, but I did experience several minutes of disorientation/very slight vertigo when I first rotated the screen. It's fine now, though, to all appearances. --DTVZ On Tue, Mar 30, 2010 at 9:14 AM, Tom Buskey wrote: > > > On Mon, Mar 29, 2010 at 11:39 PM, Benjamin Scott wrote: > >> On Mon, Mar 29, 2010 at 10:37 PM, Joshua Judson Rosen >> wrote: >> > Maybe it's analogous to the way that newspaper-texts are laid-out >> > in side-by-side columns. >> >> One difference that may be of significance is: Newspaper is of fixed >> position and layout, while most electronic text tends to move around >> (scroll). So unless your source file can fit in two 80-character >> columns, maybe that won't work the same. >> > > I find it a bit easier to read/scan newspapers and magazine articles in > narrow columns then wide. There's an optimal width. Reference books are > wider. Paperback novels seem optimal for pleasure reading. I'm sure > there's some kind of typographical explanation. Serif fonts are supposed to > be easier to read. > > >> >> >> Why does this matter? It's commonly claimed that human >> >> understanding significantly increases when the information is fit in >> >> to the field-of-view at one time. >> > >> > The bit about `more information fitting into the field of view at once' >> > is interesting, because `the field of view' isn't necessarily as wide >> > as people think it is ... >> >> "Field of view" may not be the correct term. That's my description. >> It's always been presented to me in terms of things like a printed >> page, a screenful, etc. I guess it boils down to the idea that >> whenever visual perception is "re-anchored" (my term) -- e.g., the >> (printed) page is turned, or the window is scrolled -- the level of >> comprehension decreases. >> >> Pure speculation now: If some people are more spatially oriented >> then others, it might follow that the more-spatially-oriented are more >> effected by this. >> > > Most text applications assume 80 columns, at least unconsiously. The only > app I made my screen wider for is sdiff or a gui diff. > > I usually want a taller screen. > > -- > If it's fixed, don't break it > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: another reason to use adblock and noscript... or just use Linux
"It actually costs someone far more to follow the advice than the benefit that person should expect to get." *coughairportsecuritycough* --DTVZ On Thu, Mar 25, 2010 at 11:26 AM, Ben Eisenbraun wrote: > On Wed, Mar 24, 2010 at 01:01:02PM -0400, Tom Buskey wrote: > > This is way beyond the typical user threshold of inconvenience. > > And maybe it's not actually worth it at all: > > http://glinden.blogspot.com/2010/03/security-advice-is-wrong.html > > "The surprising conclusion is that some security advice we give to people > -- such as inspect URLs carefully, pay attention to https certificate > warnings, and use complicated passwords that change frequently -- does more > harm than good. It actually costs someone far more to follow the advice > than the benefit that person should expect to get." > > -b > > -- > there is no excellent beauty that hath not some strangeness in the > proportion. > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Starting an X11 client on another machine, without ssh
> > You're running two operating systems on one piece of hardware. > Substitute "programs" for "operating systems" and it *sounds* a lot different, and perfectly ordinary and yet it really isn't that different. Bitsness is bitsness. ;-) The difference between hardware and software is even getting a little blurry, e.g. FPGAs. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
19" racks
Can anyone point me at a good place to get 19" racks local-ish to Westford, MA? TIA, --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Video card recommendation
21", no, but go up to 30": http://www.newegg.com/Product/Product.aspx?Item=N82E16824185012 2560x1600 sounds delicious. For the price, though, it should. --DTVZ On Thu, Mar 4, 2010 at 2:27 PM, Tom Buskey wrote: > > > On Thu, Mar 4, 2010 at 12:36 PM, Drew Van Zandt > wrote: > >> My first thought on seeing them was "Oh good, rotate them and they're >> perfect." >> >> Now the question is this: >> Do I want a 1680x1050 rotated to 1050x1680, or a 1600x1200 rotated to >> 1200x1600? That's close enough on height that the increased total real >> estate of the 1600x1200 is still tempting... >> >> --DTVZ >> >> > I'm interested in the rotating thing. I use the vertical more then I use > horizontal. > > I've been fighting a failing high res CRT and looking for a replacement. > I'm running 2 monitors at 1860x1440 each. Try finding a 21" LCD that does > beyond x1200. Or a CRT nowadays :-( > > I was running x1600 before I upgraded Fedora and my X settings bumped it > down to x1440. My 40+ yr old eyes have decided to just do x1440 instead of > upping the font size in gnome-terminal. I'm not ready to give up another 2" > of vertical screen resolution. > > I have a linux tablet that runs 800x600. A script to rotate X11 on it > does the trick except some gnome control apps really don't like it. I had > my app rotate its view instead. > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Video card recommendation
My first thought on seeing them was "Oh good, rotate them and they're perfect." Now the question is this: Do I want a 1680x1050 rotated to 1050x1680, or a 1600x1200 rotated to 1200x1600? That's close enough on height that the increased total real estate of the 1600x1200 is still tempting... --DTVZ On Thu, Mar 4, 2010 at 11:15 AM, Kevin D. Clark wrote: > > > > Drew Van Zandt writes: > > > code-editing screen, here I come! > > (late response due to no power) > > Hurray! Another person who understands that all of these wide-screen > monitors aren't entirely optimal for programmingunless you rotate > them, of course > > Regards, > > --kevin > -- > alumni.unh.edu!kdc / http://kdc-blog.blogspot.com/ > GnuPG: D87F DAD6 0291 289C EB1E 781C 9BF8 A7D8 B280 F24E > > Wipe him down with gasoline 'til his arms are hard and mean > >From now on boys this iron boat's your home > So heave away, boys. > -- Tom Waits > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: New Toys
I've been thinking that mine will need a wax extruder head so I can make lost-wax molds for metal casting. --DTVZ On Tue, Mar 2, 2010 at 11:02 AM, Jon 'maddog' Hall wrote: > After you use it to create the next generation "Cupcake", can I have > this one? > > md > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: New Toys
I just ordered my kit a couple of weeks ago, ETA end of March/beginning of April... I would be interested in a presentation or at least some discussion of software you choose for making models! --DTVZ On Tue, Mar 2, 2010 at 10:01 AM, Thomas Charron wrote: > So, we're in the process of building a Makerbot Cupcake solid model > printer at the house. http://makerbot.com/ > > Would there be any interest in a presentation at one of the lug meetings? > > -- > -- Thomas > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Video card recommendation
Thanks, that's exactly what I was looking for; I did not think to include "rotated" in my googling, which was silly of me. 1050x1680 (order matters) code-editing screen, here I come! --DTVZ On Mon, Mar 1, 2010 at 2:03 PM, Jon 'maddog' Hall wrote: > Drew, > > With selective Googling I found this posting about the Radeon HD 3650 in > Ubuntu Linux: > > > http://blog.vinceliu.com/2009/02/setting-dual-head-displays-with-radeon.html > > And the link to the ATI site in the article seems to show that they are > still supporting the board. > > md > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Video card recommendation
I find only the 9250 on NewEgg, and it doesn't have dual DVI. This appears to meet what I want, but due to previous experiences I would prefer a human recommendation over "Google says it should work." http://www.newegg.com/Product/Product.aspx?Item=N82E16814102880 --DTVZ On Mon, Mar 1, 2010 at 1:11 PM, Arc Riley wrote: > Just pick up a Radeon 9200/9250/9600/9700/9800 > > They've been supported by free software drivers for a long time, there's > mature 2d and 3d support. > > On Mon, Mar 1, 2010 at 12:58 PM, Drew Van Zandt > wrote: > >> Hi all, >>I'm looking for a 2D video card with dual DVI output that is supported >> by the non-proprietary drivers in Ubuntu 9.10. 3D support relatively >> unimportant. >> >> Background: Currently I have Nvidia, but their closed-source driver does >> not support screen rotation (and has a few other minor nits besides). I am >> hoping to rotate one of the two screens attached but not the other. A >> binary-only driver that will let me do this would also be acceptable. >> >> Thanks! >> >> --DTVZ >> >> ___ >> gnhlug-discuss mailing list >> gnhlug-discuss@mail.gnhlug.org >> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ >> >> > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Video card recommendation
Hi all, I'm looking for a 2D video card with dual DVI output that is supported by the non-proprietary drivers in Ubuntu 9.10. 3D support relatively unimportant. Background: Currently I have Nvidia, but their closed-source driver does not support screen rotation (and has a few other minor nits besides). I am hoping to rotate one of the two screens attached but not the other. A binary-only driver that will let me do this would also be acceptable. Thanks! --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: The MySQL petition
It's a poor craftsman who blames *only* his tools, without trying to find better ones. It's no better for a craftsman to ignore the effects a tool has on the product. I have yet to find a hardware design toolchain that isn't maddening in at least half a hundred ways. Even the free / open source ones are filled with angry bees. I may actually try to do something about that, though it's a daunting task... --DTVZ On Fri, Jan 8, 2010 at 8:07 PM, Ted Roche wrote: > On 01/08/2010 05:21 PM, Ben Scott wrote: > > Anyone who blames bad code on the language has a far bigger problem > > than the language they're using. > > > > (Since we're inciting to riot.) > > > > Yeah, no sense throwing rationality into a good flamefest. > > A wise man told me long ago, "It's a poor craftsman who blames his tools." > > -- > Ted Roche > Ted Roche& Associates, LLC > http://www.tedroche.com > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: recording Comcast digital channels with MythTV
I believe the only digital solutions which currently support encrypted channels are: * Patch that does decryption of certain channels in violation of DMCA * Set-top box from cable company with FireWire interface. Some of these allow passing decrypted output to Myth, but some channels forbid this (and thus the hardware honors it.) --DT Van Zandt (Hi Jim!) On Sun, Nov 15, 2009 at 9:59 PM, James R. Van Zandt wrote: > > For several years, I've been running MythTV with a Hauppauge PVR-500 > dual analog tuner. However, Comcast has been moving channels from > analog to digital, and they've just sent a letter announcing more will > be moving next March. So I'm in the market for a digital tuner. > > I ran across the Hauppauge HVR-2250 at New Egg: > http://www.newegg.com/Product/Product.aspx?Item=N82E16815116037 > http://www.newegg.com/Product/Product.aspx?Item=N82E16815116036 > http://www.hauppauge.com/site/products/data_hvr2250.html > http://www.mythtv.org/wiki/Hauppauge_HVR-2250 > > Looks great: a dual tuner with only one cable input, handles analog or > digital signals. As it happens, it was also mentioned in today's > Boston Globe (page G2). > > There's a Linux driver: http://www.kernellabs.com/blog/?page_id=17 > > Unfortunately, it only handles digital so far. So I guess I'd need > to keep the PVR-500 after all, and another splitter. > > However, I think this will only handle the clear QAM signals. How > many channels does Comcast encrypt? > > For our regular TV (separate from the MythTV setup), we have a cable > box (Motorola model DCT700/US) which I assume decrypts and converts > from digital to analog. To record encrypted channels, I guess I could > connect my current analog tuner downstream of the cable box. > > But I think that would only give me one channel at a time, and > necessitates double conversion (digital->analog->digital->analog). > > What's a better solution? E.g. another kind of set-top box that just > decrypts? More than one channel? > > Are there DRM issues with the HVR-2250? > > Can anyone point to a technical description of the Comcast channel > lineup (analog, digital, HD, clear QAM, encrypted, ...) for the Nashua > area? > > For example: for each analog channel, does Comcast transmit a digital > version too? > > - Jim Van Zandt > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Warning, Ubuntu Karmic / VMWare Player
Correction: VMware compiles the modules every time you upgrade the kernel; I have not had to download anything new from them on kernel upgrades, just let their tool do the recompile when I try to start the VM. Virtualbox seems faster, but the pointer in one of the apps I use is now the same color as the background. --DTVZ On Mon, Nov 9, 2009 at 12:24 PM, Tom Buskey wrote: > > > On Sun, Nov 8, 2009 at 4:39 PM, Drew Van Zandt wrote: > >> I have managed to get the image to boot in Virtualbox. Keywords to google >> or look for in the VirtualBox interface if you are in a similar bind: >> agp440.sys >> IOAPIC >> Also, make sure enough memory is allocated to both RAM and video card for >> the virtual machine. >> >> I had some bizarre side effects where the shift and control keys stopped >> working in my X session. They went away "by themselves" which worries me. >> >> >> > I used to use VMware Server/Player but switched to VirtualBox. Both > require a kernel module and that needs to be upgraded along with the > kernel. VMware supplies a binary you need to download from VMware. > VirtualBox supplies source that gets compiled everytime you upgrade the > kernel. > > VMware, VirtualBox, Hyper-V, (and XEN I think?) are collaborating on a > virtual container standard and they're adding support for competitor's > containers too. Your VMs should be portable. > > The only reason I can see to use VMware vs VirtualBox is to feed an ESX > server, but that might be going away. And familiairity.What else does > VMware offer over VirtualBox? > > > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: (easy) backups [HALF SOLVED]
Indeed, I have just such an arrangement with Jim Van Zandt. We exchanged hard drives initially; rsync over ssh now. --DTVZ On Sun, Nov 8, 2009 at 6:34 PM, John Abreau wrote: > A proper personal backup system should include both disk duplication > and archives. > > JWZ's procedure is good for the disk duplication part, assuming you're > only backing up one personal machine. It doesn't obviate the need for > an archiving strategy as well. > > Something like rsnapshot or BackupPC is good for that. For an offsite > component, one approach that might work is to pair up with a friend, > where you both run shared backup servers. You back your laptop to > your local server, and have it sync itself with your friend's server to > store > an offsite copy, and he does the same in reverse, using your server for > his offsite copy. > > > On Sun, Nov 8, 2009 at 12:39 PM, Joshua Judson Rosen > wrote: > > Ben Scott writes: > >> > >> On Sat, Nov 7, 2009 at 10:11 AM, Alan Johnson wrote: > >> > Ideally, a backup tool should run on a separate device and > >> > pull data from the devices that are to be backed up in a way that only > it > >> > has access too. > >> > >> If you want to get into ideals, backups should me made to separate > >> media which is dismounted and stored offline in a different location. > >> One reason is for protection against local disaster -- a fire being > >> being the usual example. The other reason is that any "always > >> available" system will have some mode where it is available for > >> disasters. > > > > JWZ's `Backups' PSA: > > > >http://www.jwz.org/doc/backups.html > > > > -- > > "Don't be afraid to ask (λf.((λx.xx) (λr.f(rr." > > > > ___ > > gnhlug-discuss mailing list > > gnhlug-discuss@mail.gnhlug.org > > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > > > > > -- > John Abreau / Executive Director, Boston Linux & Unix > AIM abreauj / JABBER j...@jabber.blu.org / YAHOO abreauj / SKYPE > zusa_it_mgr > Email j...@blu.org / WWW http://www.abreau.net / PGP-Key-ID 0xD5C7B5D9 > PGP-Key-Fingerprint 72 FB 39 4F 3C 3B D6 5B E0 C8 5A 6E F1 2C BE 99 > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Warning, Ubuntu Karmic / VMWare Player
I have managed to get the image to boot in Virtualbox. Keywords to google or look for in the VirtualBox interface if you are in a similar bind: agp440.sys IOAPIC Also, make sure enough memory is allocated to both RAM and video card for the virtual machine. I had some bizarre side effects where the shift and control keys stopped working in my X session. They went away "by themselves" which worries me. --DTVZ On Sun, Nov 8, 2009 at 11:30 AM, Alan Johnson wrote: > On Sun, Nov 8, 2009 at 11:13 AM, Drew Van Zandt > wrote: > >> connecting via rdp/remote desktop also fails; linux terminal server client >> just fails to connect. >> can't install other remote desktop tools because i can't log in. >> > > Yes, you would have had to enable RDP, config a user, and then open it up > in the firewall before it would successfully connect. Sorry, I'm out of > ideas if you can't access the VM's OS. > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Warning, Ubuntu Karmic / VMWare Player
vmware server is equally bad, except that it fubars the i/o for my x session until i restart. the shift and control keys no longer work. connecting via rdp/remote desktop also fails; linux terminal server client just fails to connect. can't install other remote desktop tools because i can't log in. converting the disk image to virtualbox appears to work, then the vm hangs during boot. in safe mode, occurs at the agp440.xxx line. --dtvz On Sun, Nov 8, 2009 at 7:44 AM, Jerry Feldman wrote: > On 11/07/2009 10:14 PM, Drew Van Zandt wrote: > > Don't upgrade to Karmic if you use VMWare Player. It's unusable under > > Karmic, which continually grabs the pointer back from the guest OS. I > > may have to reinstall Jaunty from scratch. > > > I use Virtualbox on Karmic. No issues. > > -- > Jerry Feldman > Boston Linux and Unix > PGP key id: 537C5846 > PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB CA3B 4607 4319 537C 5846 > > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Warning, Ubuntu Karmic / VMWare Player
Don't upgrade to Karmic if you use VMWare Player. It's unusable under Karmic, which continually grabs the pointer back from the guest OS. I may have to reinstall Jaunty from scratch. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: grep, maybe
grep -r greps all files recursively. grep -l outputs only the names of files which contain matching text. To move the folders, you would have to process that output to select the directory, then move the directory. Probably a perl or shell scripting task. AFAIK grep has nothing so specific as moving the folders the files are in, but it gets you 80% of the way there. --DTVZ On Thu, Oct 29, 2009 at 11:38 AM, Maurice wrote: > Looking for some guidance; > > I have several files within several folders (5 files per folder, and > thousands of folders) that I need to search a text file within each > folder for a word match (like three_little_pigs.txt, and I need to find > "moe", if he's listed) and then when a match is found I need to move > (not copy) that entire folder (and it's 3~5 files contained within) to > another location... > > I'm thinking grep, but don't know the correct syntax to make all this > happen. > I can easily find all the folders (1949 of them) and the word match 3923 > times within the text file(s)... > > > Any ideas??? > > > > -- > -Maurice Pelletier > Child Development Services - Cumberland County > 50 Depot Road > Falmouth, ME 04105 > 207-781-8881 (voice) > 207-781-8855 (fax) > > www.cds-cumberland.org > > > "Linux -- it's not just for breakfast anymore..." > -Moe > > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux Android Phone coming to Verizon
I own a G1.
I use primarily text-oriented applications.
Functionally, my phone has a MUCH larger screen than an iPhone, because I
have a keyboard. If I didn't have a keyboard, I wouldn't want a smartphone
at all. Soft keyboards are like driving a nail with a pair of vice grips.
It works, but there's a right tool for the job, and that isn't it.
Several of my friends have iPhones. They're awful for text-oriented use.
So for me, the Android phones (with keyboard) are already far superior to
the iPhone. I would very much like the new faster Android, if it weren't
for contract lock-in and awful Verizon experiences in the past.
--DTVZ
On Thu, Oct 22, 2009 at 11:51 PM, Joshua Judson Rosen
wrote:
> G Rundlett writes:
> >
> > On Tue, Oct 20, 2009 at 8:44 AM, Thomas Charron
> wrote:
> > > Anyone heard anything much about this 'Droid' phone?
> > >
> > > It's being toated as an open phone, but.. It's from Verizon. Kinda
> > > makes me wonder.
> > >
> > > http://phandroid.com/motorola-droid/
>
> I asked one of my co-workers about that, the other day--since he's
> been following Android (and other `open' smartphone options) in
> anticipation of the upcoming end of his Verizon contract. He said,
> "I've heard some news about it. I haven't heard *everything* about it,
> though. It's still Verizon, so...".
>
> He thinks /maybe/ Google is big enough to push Verizon into
> relinquishing some of the control they normally want over everything,
> but maybe not--the T-Mobile Android phones turned out to be not-really
> all that open. Maybe there's hope in that `methods of restricting
> functionality available on a smartphone' patent that Apple was seeking.
>
> > Did you see the "Boy Genius Report"
> > http://www.boygeniusreport.com/2009/10/19/motorola-droid-hands-on/
> >
> > On a related note, LJ just did a story on how you can check out the
> > Android OS using VirtualBox
> > http://www.linuxjournal.com/content/android-or-webos-try-you-buy
>
> In sort-of-related news, jwz has given up on the Palm Pre, passed on
> any Android phones, and just switched to the iPhone:
>
>http://jwz.livejournal.com/1108212.html
>("Dear Palm, it's just not working out.")
>
> He says, there:
>
>I thought about trying out an Android phone, but the reality is
>that the most positive review I've ever heard about Android was
>damning with faint praise along the lines of, "it sure does show
>the potential to someday be an iPhone competitor."
>
>
> And that `Boy Genius Report' provides that same `damning faint praise':
>
>the most impressive phone we’ve used since the iPhone.
>It’s positively amazing
>
>
> So the Droid is "positively amazing", just... not quite as amazing as
> the iPhone? Otherwise it would have been something like "the most
> impressive phone ever", rather than just "the most impressive phone
> SINCE THE iPHONE", right?
>
>
> Well, at least my FreeRunner doesn't take 40 seconds to take a picture
> like jwz's Pre does... :)
>
> --
> Don't be afraid to ask (Lf.((Lx.xx) (Lr.f(rr.
>
> ___
> gnhlug-discuss mailing list
> gnhlug-discuss@mail.gnhlug.org
> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
>
___
gnhlug-discuss mailing list
gnhlug-discuss@mail.gnhlug.org
http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Suggestions?
I thought you guys might have some input on this re: usability and features... any suggestions for improvement would be appreciated. http://sensatronics.com/index.php/demos/senturion-demo.html And before I get a flood of "it should run Linux" I'll say that I'm pulling for that in the next hardware rev. :-D --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Suggestions - embedded Linux
So, I've convinced my company to at least entertain the idea of using embedded Linux on one of our upcoming projects, but I'm in need of some research. I'm doing my own, of course, but I thought some of you might have suggestions. We would spin our own PCB with CPU etc., and I'm trying to figure out what platform would be most economical - our needs are not great, embedded Linux is overkill, but it has many good features. So far I'm considering these options to present: HARDWARE: * Marvell SheevaPlug schematic with some tweaks. 1.2 GHz, 512MB flash, 512 MB RAM, gig Ethernet, USB. Less RAM/Flash if I think it will suffice. * ColdFire v2, v3, v4. 128MB flash, 128MB RAM (less if I can be convinced it will suffice.) * NET+ARM based, 128MB flash, 128MB RAM (less if I can be convinced it will suffice.) Any comments on a good hardware basis that I'm missing? DISTRIBUTION: Timesys LinuxLink Red Hat Embedded Linux --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: FWIW: The bigger picture... Or why I have been asking a lot of questions lately...
Have you considered using a fast compression/decompression algorithm before you transmit, one that isn't too computationally intensive for either compression or decompression? You won't get high compression (factor of 10) as you might with slower ones, but if you get even a factor of 2, you've just doubled the effective network speed. It appears to me that this would only gain you 50% or so, as the obvious fast compression algorithms are only about twice as fast ( http://www.quicklz.com/bench.html) as Gigabit Ethernet's theoretical speed, but it's worth consideration. The decompression is faster than the compression, which would hopefully result in a net win on processing time on remote server. --DTVZ On Sun, Oct 11, 2009 at 10:29 AM, Joshua Judson Rosen wrote: > Bruce Labitt writes: > > > > What I'm trying to do: Optimizer for a radar power spectral density > problem > > > > Problem: FFTs required in optimization loop take too long on current > > workstation for the optimizer to even be viable. > > > > Attempted solution: FFT engine on remote server to reduce overall > > execution time > > > > Builds client - server app implementing above solution. Server uses > > OpenMP and FFTW to exploit all cores. > [...] > > Implements better binary packing unpacking in code. Stuff works > > > > Nit in solution: TCP transport time >> FFT execution time, rendering > > attempted solution non-viable > > > > Researches TCP optimization: Reads countless papers on tcp optimization > > techniques... Fails to find a robust solutions or methodology for > > problem. Tries most techniques written in papers, only realizing a 10% > > gain. Not good enough. Still needs to be faster > > > > Driven to more exotic techniques to reduce transport time. Explores > > parallel sockets, other techniques > [...] > > Hey, that is my bigger picture... Any and all suggestions are > > appreciated. Undoubtedly, a few dumb questions will follow. I appear > > to be good at it. :P Maybe this context will help list subscribers > > frame their answers if they have any, or ask insightful questions. > > Where exactly does NFS fit into this? > > -- > Don't be afraid to ask (Lf.((Lx.xx) (Lr.f(rr. > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: How To Ask Questions The Smart Way
I dislike the document because it's pedantically long-winded. It desperately needs an executive summary. Anyone willing to read enough of the document to benefit from it is likely already asking reasonable questions, and thus is likely *not* the target audience. --DTVZ On Sat, Oct 10, 2009 at 2:58 PM, Kevin D. Clark wrote: > > Lori Nagel writes: > > > It took me half a year just to figure out how to add the math > > library into the compiler so I could compile some basic C programs > > from one of the C programing books I have. > > Sorry, I must politely disagree that a situation like this relates in > any way to any of the negative aspects of that document. I have > little insight into your stuggles with this particular problem (I > wasn't there watching you struggle -- I don't know you) but I would > point out that when you posted a query about this very topic on this > mailing list your question was "smart" enough to generate several > helpful responses (including from me...). > > In general, if you do your homework and strive to ask a reasonably > smart question, in my experience, you will get a reasonable response. > > Kind regards, > > --kevin > -- > GnuPG ID: B280F24EGod, I loved that Pontiac. > alumni.unh.edu!kdc-- Tom Waits > http://kdc-blog.blogspot.com/ > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux as a NAS performance questions
FYI, a friend of mine who's Our Sort (IT professional) has a Drobo at home, and had a few things to say about it: 1) It rocks, especially lately when he's been experiencing regular brownouts. 2) It's Linux underneath the shiny custom box, and not difficult to get ssh, Perl, and userland NFS running. 3) It's as fast as he'd expect a modest home Linux system doing the same thing to be. --DTVZ On Thu, Sep 17, 2009 at 8:21 PM, Alex Hewitt wrote: > Drew Van Zandt wrote: > > That's basically what a Drobo > > (http://www.drobo.com/products/drobo.php) is, only they already > > considered all of those performance questions for you. > > > > --DTVZ > > > > On Thu, Sep 17, 2009 at 4:09 PM, Neil Joseph Schelly > > mailto:n...@jenandneil.com>> wrote: > > > > I'm looking to build a small Shuttle barebone machine into a NAS > > running > > Linux. The intent of the machine is to be a networked PC with lots > of > > storage in a RAID array, made available over the gigabit network > > interface > > via Samba, NFS, and maybe iSCSI protocols. I'm curious what > > experience > > others have with this sort of stuff in general, but two immediate > > questions > > come to mind about processor and memory performance. > > > > I can go the low-power, low-heat route and get a single-core > > processor and a > > single memory stick of minimal quantity. Or I can upgrade a bit, > > get a > > dual-core processor with 2 sticks of dual-channel memory. Or > > something in > > between. What I don't know is how much impact processor speed, > > multiple > > cores, memory capacity, and dual-channel memory has on disk I/O, > > network I/O, > > software RAID processing, etc. > > > > I like the idea of a small low-power, low-heat appliance, but will > > going too > > low on those negatively impact performance much? The cost > > difference between > > a single-core processor with 1GB of memory and a dual-core > > processor with 2 > > sticks of 1GB dual-channel memory is insignificant, so that's not > > much of a > > concern. > > -N > > ___ > > gnhlug-discuss mailing list > > gnhlug-discuss@mail.gnhlug.org gnhlug-discuss@mail.gnhlug.org> > > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > > > > > > > > > ___ > > gnhlug-discuss mailing list > > gnhlug-discuss@mail.gnhlug.org > > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > > There seem to be a lot of unhappy Drobo users if Newegg's customer > reviews are anything to go buy. Take a look here: > > http://www.newegg.com/Product/Product.aspx?Item=N82E16822240010 > > I have learned the hard way to be very mindful of the customer reviews > on Newegg. If the unhappy customers get to the 20% or higher level you > need to make sure their complaints don't apply to your situation. > > -Alex > > > > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Why Linksys routers are so cheap...
I would much appreciate a report on its VLAN support, actually. --DTVZ On Tue, Sep 22, 2009 at 9:19 PM, Bill McGonigle wrote: > On 09/22/2009 08:50 PM, Gerry Hull wrote: > > I have a completely opposite opinion of Linksys routers. > > Just to clarify, it sounds like you have a completely opposite opinion > of WRT54GL's. I'd second your opinion of that particular model. It's > always been particularly robust, but recall that we have a 54GL because > after the 54G became so popular, Linksys went to much cheaper parts and > broke linux compatibility to save money. The outcry was so loud they > brought the old design back into production in parallel with the > mass-produced el-cheapo, which was universally panned. As far as I > know, the GL has been largely unchanged to date. > > But now that gigabit and -n are prevalent, the GL is showing its age. > I've looked at the 610 line and found overheating/reset problems. Alex > outlines other areas where cheap was more important than quality. I've > been trying an ASUS replacement for the GL just because I suspect > Linksys will kill it soon. > > FWIW, I'm running my -n network on a $30 Rosewill WAP piggy-backed onto > a GL. It's not linux and not gigabit, but I run all the smarts in > DD-WRT on the GL and let the Rosewill run as a completely dumb bridge. > So far it's been worth every penny, and the logic board is the size of a > playing card and runs very cool. > > Incidently, if you see this mail, it's the first one I sent on a Netgear > GS108T. That's a $100 Linux-based gigabit *switch* with nearly all the > desired management bells and whistles that you can pick up at Staples. > I haven't turned on VLAN's or jumbo frames yet, but I'm pleased by the > march towards world domination. Coincidentally(yeah, right), the switch > gets raves while their proprietary smart switches get panned. > > -Bill > > -- > Bill McGonigle, Owner > BFC Computing, LLC > http://bfccomputing.com/ > Telephone: +1.603.448.4440 > Email, IM, VOIP: b...@bfccomputing.com > VCard: http://bfccomputing.com/vcard/bill.vcf > Social networks: bill_mcgonigle/bill.mcgonigle > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux as a NAS performance questions
That's basically what a Drobo (http://www.drobo.com/products/drobo.php) is, only they already considered all of those performance questions for you. --DTVZ On Thu, Sep 17, 2009 at 4:09 PM, Neil Joseph Schelly wrote: > I'm looking to build a small Shuttle barebone machine into a NAS running > Linux. The intent of the machine is to be a networked PC with lots of > storage in a RAID array, made available over the gigabit network interface > via Samba, NFS, and maybe iSCSI protocols. I'm curious what experience > others have with this sort of stuff in general, but two immediate questions > come to mind about processor and memory performance. > > I can go the low-power, low-heat route and get a single-core processor and > a > single memory stick of minimal quantity. Or I can upgrade a bit, get a > dual-core processor with 2 sticks of dual-channel memory. Or something in > between. What I don't know is how much impact processor speed, multiple > cores, memory capacity, and dual-channel memory has on disk I/O, network > I/O, > software RAID processing, etc. > > I like the idea of a small low-power, low-heat appliance, but will going > too > low on those negatively impact performance much? The cost difference > between > a single-core processor with 1GB of memory and a dual-core processor with 2 > sticks of 1GB dual-channel memory is insignificant, so that's not much of a > concern. > -N > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: best office/home office setup - the telecommuter
It's a fairly high-power machine; however, it is in regular use by upwards of a dozen people, though only I use it as a desktop (and that is a concession to waste-avoidance; servers should not ordinarily have desktop software running on them). When it's possible to have 3 TB of RAID storage in my laptop, perhaps this will change, but I expect that by then I will have outgrown the current RAID. In 3 years or so it might be worth replacing it with a nettop and a couple of large external drives, but at the moment a desktop with internal drives is the only sensible way to maintain that much storage in a live state. I *use* my hardware regardless of its proximity to my current location; for those who do not, perhaps shutting it off makes sense. Also, with a comment like that you had *better* own a Prius. ;-) --DTVZ On Fri, Jul 24, 2009 at 4:18 PM, Alan Johnson wrote: > On Fri, Jul 24, 2009 at 3:17 PM, Drew Van Zandt > wrote: > > I find that a desktop is better than a laptop, for the home office bit at > > least. I don't have to wait for boot/shutdown, keep dragging power > supplies > > out, etc. > > > I apologize in advance if I am preaching to the quire and this is just > a super-low-power appliance-like machine that runs all your edge > routing and house hold systems while you are away, but Dude! Shut > that thing off when you are not using it! Global Warming, Peak Oil, > national security... All of those are relevant, but in case you > "choose" not to "believe" in any two of them, any one of them should > be enough to get you to change your habits. If you don't have kids, > do it for my kids, eh? > > > Ubuntu is making great strides in boot time. Also, I saw my Ibex boot > time cut in about half (discarding BIOS and GRUB pause) when I > installed a Kingston SATA SSD in my laptop running Ibex. (SSD is also > good for reducing energy use.) Jaunty is quicker, but does not like > my hardware. I have high hopes for Karmic Koala which is suppose to > load in less than 10 seconds off disk (YMMV). Just enough time to > plug in your power cable if you are quick. ;-) > > -- > Alan Johnson > a...@datdec.com > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: best office/home office setup - the telecommuter
I find that a desktop is better than a laptop, for the home office bit at least. I don't have to wait for boot/shutdown, keep dragging power supplies out, etc. --DTVZ On Fri, Jul 24, 2009 at 3:11 PM, Greg Rundlett (freephile) < g...@freephile.com> wrote: > Moving to a new employment position, I'm once again faced with > purchasing some computer equipment. I'm wondering what hardware, > software and combination people like the best for working seamlessly > in the office AND home office environment. I'm not really a traveller > - so I don't have to do the 'road warrior' thing. However, I do want > to be able to work in multiple locations. > > I was going to buy a notebook (Lenovo T500 ~ $1200) with docking > station ($200) plus keyboard and monitor ($400), but I'm wondering > what other people think. > > Does anyone just use a desktop, with screen plus sshfs? > > Does anyone just use an external USB drive + using synchronization > software? > > Does anyone just use a service like Dropbox? > > Obviously without the notebook to move around, you have to maintain > applications and even the OS on multiple hardware. I think the > notebook gives the best flexibility + power + least effort, but I'm > just wondering what other people's experience is. > > -- > Greg Rundlett > > nbpt 978-225-8302 > m. 978-764-4424 > -skype/aim/irc/twitter freephile > http://profiles.aim.com/freephile > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: WAP/Router for use with OpenVPN
Doing OpenVPN over TCP is, in my experience, human-noticeably slow in comparison to UDP; I have seen no issues with multiple machines behind the same NAT. --DTVZ On Tue, Jul 7, 2009 at 12:03 PM, Thomas Charron wrote: > On Tue, Jul 7, 2009 at 11:35 AM, Drew Van Zandt > wrote: > > It *is* really easy. No idea what multiple people using it has to do > with > > anything, as I forward only one UDP port through my router and have many > > people connected to my VPN. Even the initial config is easy enough for > > nontechnical friends to handle, now that I've written up simple > directions. > > Once it's set up, they don't have to do *anything*, every time they boot > > they're on the VPN and have samba shares mapped on their Windows boxes. > On > > rare occasion they might have to retype their share passwords. > > I had tried it initially, and in my case, had two systems which > where behind a NAT, VPNing into the system which was behind a > firewall, and bad things happened. The UDP packets are mapped by > to<=>from IP, and when multiple people are using it with the same one, > it got all sorts of confused. > > Of course, that was three years ago. Perhaps they fixed the issue > since then. *shrug* I like using it over TCP personally. > > -- > -- Thomas > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: WAP/Router for use with OpenVPN
This should be mad simple. Just forward port 1194. Pesonally, I forward just TCP, as I have multiple people VPNing in, but you could also forward UDP if that isn't an issue. It *is* really easy. No idea what multiple people using it has to do with anything, as I forward only one UDP port through my router and have many people connected to my VPN. Even the initial config is easy enough for nontechnical friends to handle, now that I've written up simple directions. Once it's set up, they don't have to do *anything*, every time they boot they're on the VPN and have samba shares mapped on their Windows boxes. On rare occasion they might have to retype their share passwords. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux-compatible scanner with ADF
For photos I have an Epson Perfection model with a 35mm film feeder. I use the Windows software, though, since it has fanciness and I rarely need to use it anymore. --DTVZ On Fri, Jun 5, 2009 at 11:02 AM, Tom Buskey wrote: > > > On Fri, Jun 5, 2009 at 10:10 AM, Ben Scott wrote: > >> On Fri, Jun 5, 2009 at 9:25 AM, wrote: >> > I'm looking for a Linux-compatible color scanner with automatic >> > document feeder (ADF). >> >> I recommend the Fujitsu product line. They're well-supported on >> Linux, and they're excellent scanners besides. They're fast, >> full-featured, and almost never jam. >> >> > Alas, the only scanners they offer with ADFs are either ... in >> > excess of $300. >> >> Ah. You want good, fast, *and* cheap. (Don't we all?) Sorry, >> can't help. :( >> > > I've heard good things about the ScanSnaps too. > > On a related note, anyone know an ADF scanner that can feed photos? > The stick feeders can do it but the quality is very poor. Most other > feeders jam on a 4x6 size. > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: UNIX license plate
Indeed. I just removed the "got root?" sticker, however, as it was not quite my style and also aging badly. (It was a gift from my (now ex) wife, so I made sure to appreciate it at the time.) I've seen OPENVMS around a bit. --DTVZ On Thu, May 14, 2009 at 11:41 AM, Ted Roche wrote: > Drew Van Zandt wrote: > >> Personally, I like this one: >> http://oddones.org/instantpics/pics/car_debian.jpg >> >> --DTVZ >> > Is that your car, Drew? Love the FSM... > > -- > Ted Roche > Ted Roche & Associates, LLC > http://www.tedroche.com > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: UNIX license plate
Personally, I like this one: http://oddones.org/instantpics/pics/car_debian.jpg --DTVZ On Thu, May 14, 2009 at 9:45 AM, Ted Roche wrote: > David Brooks posts a teaser on his web site for an article coming up in > Sunday's Nashua Telegraph on maddog's license plate: > > http://granitegeek.org/2009/05/14/unix-license-plates-galore/ > > -- > Ted Roche > Ted Roche & Associates, LLC > http://www.tedroche.com > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: CMS
Using Joomla currently; it seems to work well. Some plugins were required to make it do what we wanted, though. In particular the built-in file upload tool is crap, and there are form submission and tabbed-page plugins that are quite handy. Nontechnical folks can add, technical sorts can still access HTML to make tweaks if they feel the need. (It doesn't tie your hands too much.) --DTVZ 2009/3/24 Lori Hitchcock > Working with a company developing a website in a LAMP environment and > starting to look at CMS. Hearing good and bad about both Joomla and > Drupal. The needs to be very simple for non-techs to add content. > > Does anyone have any advice or experience with either of these? Does any > one have a positive experience with another CMS? > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Building / Buying a MythTV box
I helped my (ex) father-in-law set up a mythdora system, and last weekend ported it to mythbuntu. Of the two, Mythbuntu is far, far better, though still a little quirky. I recommend that for the HD encoding you get an HDHomeRun, rather than a tuner card - it's supported and neatly sidesteps a host of issues. That lets you get a silent (or at least quiet) box as your combo front/back end, the only reason to split at that point is if you want the hard drive rooms away from the screen. It also takes encoding away from the back end, so you could recycle your old box into the basement and make it primarily a fileserver/backend. --DTVZ On Fri, Mar 20, 2009 at 12:34 PM, Neil Joseph Schelly wrote: > On Friday 20 March 2009 12:22:14 pm Greg Rundlett (freephile) wrote: > > I'm undecided about whether it's going to be easier/better/cheaper to > > run a single unit with maybe a USB external drive attached or run a > > front-end that is small and pretty with a backend on the rack in the > > basement. I do have a wire shelf rack in the basement with UPS and > > the house is wired with CAT5. > > I'm not up on the latest and greatest hardware out there. I only learn > that > stuff when I need to rebuild or repair my current MythBox due to hardware > failures. I'm cheap and hardware will fail every couple of years and > sometimes more for me. As it's been awhile since I've done a rebuild, I'm > just not familiar with the various hardware Myth-in-a-box solutions or the > best tuner cards you can get. > > I will say this though. I know that the next time I build it up again, I > really want a dual-machine setup. I like having my servers centralized and > the idea of a cheap lightweight frontend appeals to me. It's not that big > a > deal, but I keep wishing I had that setup for various small little reasons, > so if you can swing it, it's probably worthwhile. > > -N > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: OT? Shipping issues?
One package with liquid contents (agave nectar in plastic jugs) destroyed, then after writing me a note saying that, they returned the soggy box to the vendor claiming there was an address problem and it was undeliverable. Since about 5% of the agave nectar was delivered on the outside of a package being delivered to my roommate, I find that unlikely and dishonest. --DTVZ On Mon, Mar 16, 2009 at 2:59 PM, Hewitt_Tech wrote: > Recently I've noticed that both major overnight package delivery > companies have been damaging packages. I've had 3 out of 4 computer > cases rendered unusable and packages routinely arrive here (Manchester) > with chunks missing out of them. For the most part my parts vendor does > a great job of packing but they can't overcome the rough handling that > is doing the damage. You'd think with an economic slowdown the shippers > wouldn't screw up like this. Anybody else noticed this? > > -Alex > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Is anyone hosting/organizing a party for February 13 23:31:30 2009 GMT?
I think I can be safely considered a Linux enthusiast (I have three cats, Debian, Apache, and Penguin, and http://oddones.org/instantpics/pics/car_debian.jpg";>this license plate) and I'll be damned if I can find a single Friday or Saturday night free for roughly the next eleven weeks. Where do you guys find the free time??? I could use some, there are some girls that need chasing. ;-) --DTVZ On Fri, Jan 16, 2009 at 2:43 PM, wrote: > On Fri, Jan 16, 2009 at 01:54:37PM -0500, Michael Pelletier wrote: > > It's a Friday evening, so it'd be a perfect time for a little > get-together > > of Linux enthusiasts. > > > Wait ... You mean we Linux enthusiasts don't have anything else > to do on Friday evenings?... Nothing at all? > > [ ouch.. :-) ] > > > Jeff > > -- > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Debian HTTPS mirrors
If it's absolutely necessary for some reason that you verify stuff at the last step, run your own private mirror that does a normal download, then verifies before it will serve to your clients. --DTVZ On Wed, Dec 24, 2008 at 11:57 AM, Ben Scott wrote: > On Wed, Dec 24, 2008 at 11:41 AM, Thomas Charron > wrote: > > No luck finding any searching, anyone know if there are any debian > > mirror sites which can serve over https? > > Given the computational expense involved in encrypting such a large > payload, I would expect such to be rare and short-lived. It's > generally seen as more efficient to verify at the end-point, rather > than trying to keep the entire distribution chain secure. My > understanding is that Debian packages include GPG signatures and MD5 > checksums, which APT checks. May I ask why that is not sufficient to > verify integrity and authenticity? > > -- Ben > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Apache2 conundrum - update
Aha, the browser cache was in fact bogging down my debug efforts. I seem to be getting the file processed now, though I'm not sure which of the changes I've tried did the trick. --DTVZ On Wed, Dec 17, 2008 at 10:54 AM, Arc Riley wrote: > Make sure to clear your browser cache. I hit this problem just the other > night where Firefox was actually not re-requesting the file, as shown in the > access logs. This made debugging difficult. > > Also make sure that your AddHandler is setup for a matching mimetype. Ie, > **application/x-httpd-*php, instead of *application/x-httpd-*php5 * > > On Wed, Dec 17, 2008 at 10:42 AM, Drew Van Zandt > wrote: > >> I restarted the server with no change in behaviour, and the first entry in >> the DirectoryIndex line is index.php, which is what I type when I directly >> call it and get the right response. >> >> --DTVZ >> >> >> On Wed, Dec 17, 2008 at 10:30 AM, Thomas Charron wrote: >> >>> >>> Is it a cached and/or precompiled version? Same behavior if you >>> punt the server? Also, is it picking up something like an Index.php >>> or the sort, instead of the one your exclusively calling? >>> >>> >>> -- >>> -- Thomas >>> >> >> >> ___ >> gnhlug-discuss mailing list >> gnhlug-discuss@mail.gnhlug.org >> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ >> >> > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Apache2 conundrum - update
I restarted the server with no change in behaviour, and the first entry in the DirectoryIndex line is index.php, which is what I type when I directly call it and get the right response. --DTVZ On Wed, Dec 17, 2008 at 10:30 AM, Thomas Charron wrote: > > Is it a cached and/or precompiled version? Same behavior if you > punt the server? Also, is it picking up something like an Index.php > or the sort, instead of the one your exclusively calling? > > > -- > -- Thomas > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Apache2 conundrum - update
And yet 1) The hostname is the same in both URLs, I'm only adding the index.php bit at the end and 2) I searched the apache config file for that sitename to make sure there was only one Vhost. --DTVZ On Wed, Dec 17, 2008 at 10:20 AM, Ben Scott wrote: > On Wed, Dec 17, 2008 at 10:16 AM, Drew Van Zandt > wrote: > > Interestingly, the PHP file being served at http://sitename.com/(instead of > > http://sitename/index.php) does not seem to be the same index.php file, > but > > a different copy. I am very confused. > > Sounds like Apache is matching a different virtual host for that > site host name. > > -- Ben > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Apache2 conundrum - update
Interestingly, the PHP file being served at http://sitename.com/ (instead of http://sitename/index.php) does not seem to be the same index.php file, but a different copy. I am very confused. Debian unstable, php5, apache2 --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Apache2 conundrum
I'm not quite sure what to google on this one... One of my sites recently stopped working. (Probably when I upgraded php or apache2.) The symptom is that the site works just fine if I go to http://sitename.org/index.php But if I just go to http://sitename.org/ it sends me the raw, unprocessed php file. There are no other index.* files in the directory. Any ideas, or suggestions on what to google? --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Need dd-wrt configuration to isolate wireless router from local LAN...
Method (1): Put the wireless router outside the wired router. Method (2): Add something like: iptables -I INPUT -d 192.168.1.0/255.255.255.0 -j DROP and (to allow the wired router as a destination): iptables -I INPUT -d 192.168.1.1 -j ACCEPT You might need to do that second method to the nat table instead of the default table, that's all from memory so the syntax is probably not quite right. --DTVZ On Thu, Dec 11, 2008 at 3:53 PM, Alex Hewitt wrote: > This might not have an easy answer but I want to setup a wireless router > inside an existing LAN. I want to be able to let users connect to the > wireless router but not be able to access systems on the LAN that the > wireless router will be installed on. So the scenario is: > > Internet Connection > . > . > Existing router (192.168.1.1) > . > . > Wireless router (192.168.2.1 or any private network) > > A user connecting to the wireless router would get an address such as > 192.168.2.100 and they could ping or otherwise see machines on the > 192.168.1.* network. I've got dd-wrt v2.4 micro edition running on a > WRT54G V5 wireless router. The main router is a LinkSys RV042 model. Is > there a simple way to stop users connected on the wireless router from > accessing systems on the main LAN? One way to achieve this would be to > add a switch between the ISP's equipment and the RV042 but I'd like to > make sure that any wireless connections couldn't chew up too much > bandwidth. > > -Alex > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Rodents (mice)
Update: All buttons "work" except the search button still opens a file search no matter what I do (even in xev). Zoom buttons are not mapped to zoom in firefox, however. They do generate unique xev event messages, though. L/R tiltwheel works in firefox, as do back/forward buttons. I used this: http://ubuntuforums.org/archive/index.php/t-399099.html With one modification: I had to use /dev/input/event9, which I determined by looking in /dev/input/by-id/. Still not sure about the last tweak mentioned in the forum link, a straight copy/paste did not work for me. --DTVZ On Mon, Dec 8, 2008 at 10:20 AM, Ben Scott <[EMAIL PROTECTED]> wrote: > Hi list, > > It seems all my stuff is falling apart at once. My Logitech > MouseMan Optical Dual, after roughly eight years of faithful service, > is exhibiting wear in the middle button (scroll wheel). (It is > occasionally but with increasing frequency sending multiple "clicks" > per press.) The problem with hanging on to hardware forever is that > one has no idea what's current when it comes time to replace it. > > I'm probably going to buy some sort of feeping creature, with with > ten or so buttons, adjustable DPI, 2-axis scroll wheel, staple > remover, etc., but I'm wondering if it's possible these days to get > all those features to work under Linux without writing your own device > driver? Is it too much to hope for that it "just works" in a > fast-moving distribution like Ubuntu or Fedora? > > I weakly attempted Googling but found a brazilian hits. I'm hoping > someone here knows the answers already and can spare me yet another > research project. :-) > > -- Ben > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Rodents (mice)
I am exceedingly happy with my Logitech VX Revolution cordless. It uses a single AA for power, that lasts some indeterminate number of months (I don't keep track, it's not often enough to irritate me.) The scroll wheel just works, as both a scroll wheel and a middle button, I just reinstalled on a new hard drive *yesterday* so I haven't fiddled with any settings yet. The "search" button brings up a file search, not what I expected but if it does something I expect it's remappable. The Forward/Back buttons seem to show as duplicates of middle and right button in xev. The L/R tilt of the wheel does not generate an X event with the default driver, nor do the zoom in/out functions. I'm playing with stuff I googled now, though, and will report back. Others seem to have gotten it working 100% and posted results. --DTVZ On Mon, Dec 8, 2008 at 10:20 AM, Ben Scott <[EMAIL PROTECTED]> wrote: > Hi list, > > It seems all my stuff is falling apart at once. My Logitech > MouseMan Optical Dual, after roughly eight years of faithful service, > is exhibiting wear in the middle button (scroll wheel). (It is > occasionally but with increasing frequency sending multiple "clicks" > per press.) The problem with hanging on to hardware forever is that > one has no idea what's current when it comes time to replace it. > > I'm probably going to buy some sort of feeping creature, with with > ten or so buttons, adjustable DPI, 2-axis scroll wheel, staple > remover, etc., but I'm wondering if it's possible these days to get > all those features to work under Linux without writing your own device > driver? Is it too much to hope for that it "just works" in a > fast-moving distribution like Ubuntu or Fedora? > > I weakly attempted Googling but found a brazilian hits. I'm hoping > someone here knows the answers already and can spare me yet another > research project. :-) > > -- Ben > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Old rackmount equipment?
The closer to a real, functioning rack it is, the more useful the results will be. I have a couple of elderly 1U servers that will be involved, but want more real stuff before I go tossing in things that *I THINK* will act enough like servers or whatever to produce useful results. I do not trust faked equipment to act like real equipment. --DTVZ On Mon, Oct 20, 2008 at 2:54 PM, Ben Scott <[EMAIL PROTECTED]> wrote: > On Mon, Oct 20, 2008 at 2:22 PM, Drew Van Zandt <[EMAIL PROTECTED]> > wrote: > > I'm looking for old, not necessarily functional rackmount equipment to > > fill a rack with for some airflow experiments I'm doing ... > > Cardboard? :) > > > Bonus points if I can plug it in and it produces heat (but not fire, > preferably.) > > Sheet metal and space heater? :) > > -- Ben > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Old rackmount equipment?
Hey all, I'm looking for old, not necessarily functional rackmount equipment to fill a rack with for some airflow experiments I'm doing, and I was wondering if anyone had junk lying around that would qualify. Anything I can bolt into a rack will do, from shelves to token-ring switches. Bonus points if I can plug it in and it produces heat (but not fire, preferably.) Thanks! --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Android Phone - anyone got one yet?
No, but the four of us pay $20/month combined to have it not use minutes; basic plan it does use minutes. --DTVZ On Tue, Sep 23, 2008 at 5:07 PM, Thomas Charron <[EMAIL PROTECTED]> wrote: > On Tue, Sep 23, 2008 at 5:01 PM, Drew Van Zandt <[EMAIL PROTECTED]> > wrote: > > Does Android support the 802.11 VOIP calls that some other T-Mobile > phones > > (notably mine) do? The few places I couldn't get regular phone signal > also > > happen to have great net connections, now I never have trouble with > coverage > > anymore, because I'm a huge geek and require Internet access everywhere I > > frequent. > > I hadn't even considered that. When your on 802.11, does it take > minutes? > > -- > -- Thomas > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Android Phone - anyone got one yet?
Does Android support the 802.11 VOIP calls that some other T-Mobile phones (notably mine) do? The few places I couldn't get regular phone signal also happen to have great net connections, now I never have trouble with coverage anymore, because I'm a huge geek and require Internet access everywhere I frequent. --DTVZ On Tue, Sep 23, 2008 at 4:56 PM, Thomas Charron <[EMAIL PROTECTED]> wrote: > On Tue, Sep 23, 2008 at 3:08 PM, Bruce Labitt <[EMAIL PROTECTED]> > wrote: > > Anyone take the plunge? Looks interesting - lots of hype today... > > It appears you have to pay $25 for 400 msgs + unlimited data or $35 for > > unlimited data & msgs on top of what ever voice service you have. > > I was ready to switch, I swear I was. Then, I looked at T-Mobiles > coverage maps for NH. And as much as I'd LOVE to stick it to verizon, > after all, I'm out of contract for the last 5 months... > > I'll wait untill someone actually shows me that from my house in the > woods, I'll actually be able to make a phone call. > > -- > -- Thomas > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: (OT) Laptop Repair
I have a laptop LCD floating around my junk bin that... I have no idea anymore what sort of laptop it came from, but if it's the right sort it's yours. I've had dells before, so it could be correct. --DTVZ On Thu, Aug 21, 2008 at 11:04 AM, H. Kurth Bemis <[EMAIL PROTECTED]>wrote: > If you are handy with a screwdriver and plastic butterknife and observe > static safety, you can replace it yourself in a few minutes. You can > easily find the a replacement LCD replacement on eBay or another > vendor. My experiences have been that the replacement will cost > anywhere from $120 to about $200, depending upon laptop brand. I had to > replace the screen in a Vaio once, LCD alone was $295, so be glad you > don't own one of those. > > Typically it's the labor that inflates the price. If you can do it, I > would say go for it. If you would like more information I can provide > it and I'm sure the list can as well. > > Good Luck. > > ~k > > [EMAIL PROTECTED] wrote: > > Good Morning. > > > > My daughter has a Dell Inspiron (5100) and she dropped it. Consequently, > the LCD is cracked in a couple places. > > I assume Dell sold a bazillion of these machines, so also, I assume parts > are available... > > > > Where might I go in the Southern NH or Mass. areas, to > > get this Laptop repaired ??? > > > > Thanks In Advance > > > > paulc > > > > > >> ___ > >> gnhlug-discuss mailing list > >> gnhlug-discuss@mail.gnhlug.org > >> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > >> > > ___ > > gnhlug-discuss mailing list > > gnhlug-discuss@mail.gnhlug.org > > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Laptop external power from batteries (DC/DC)
The Ah of a battery may depend quite a lot on the current drawn from it; I'd look for a datasheet, it probably has an Ah/current graph. You need a pretty high-power switcher to feed that current at 19.5VDC, in electronics-land that's a TON of power. Definitely something with an external power FET and a big-ass inductor. Niftier switchers these days might get the physical size of the inductor down a bit, but it has to be rated at the max current you'll be drawing. Do-able, but enough work that unless you can get a travel charger to solve that part it might not be worth the headache - It Depends (TM). One-shot, or do you need 20 of them? --DTVZ On Mon, Aug 18, 2008 at 6:24 PM, Ben Scott <[EMAIL PROTECTED]> wrote: > Bringing this thread over here from gnhlug-org... > > Someone brought up the idea of powering a laptop from DC sources, > rather than the traditional AC power bricks. This is strictly about > external power, not the laptop's built-in batteries. > > Obviously, many laptops come with "travel adapters", designed to > plug into 12 VDC automobile "cigarette lighter" power sockets. If you > have one of those, and it works, use it. But things are not always so > easy. > > Case-in-point was a Dell Vostro 1700. It has a 17" display and > sucks power like a black hole sucks... everything. Dell doesn't offer > a travel adapter for it. According to the sticker on the bottom, it's > rated for 19.5 VDC at 4.62 A. Doing the math, that's 90 watts. > Dell-branded travel adapters seem to top out at around 65 watts for > some reason. 90 watts at 12 VDC is only 7.5 A, which doesn't seem > that big to me. I believe my car cig lighter socket is rated at 12 A. > > I know laptops can vary their power draw quite a bit. In > particular, running the laptop while also charging the internal > battery is a major pig. So that 90 watts may be overly high. > > I know a lot of travel adapters are misleading in their specs. A > travel adapter rated at 90 watts may only be able to deliver that when > running on AC. On DC, they may provide considerably less. This was > not mentioned in the published specifications. Again, I don't know > the reason for the limit, but I know it's caused me grief. When I > attempted to use such adapters to power a Gateway laptop rated at 80 > watts, the laptop would continuously switch between line-power and > internal-battery, at about 0.5 Hz. Apparently the adapter was going > in and out of over-current shut-off. Happened with two different > adapters, one of which I remember was Kensington brand. > > Inverters are an option, of course, but the DC->AC->DC conversion > tends to waste a lot of energy. Not a big concern if you're running a > car engine anyway, but if you're running solely off the battery, it > matters. Given that the discussion arose from a situation where a car > wouldn't be convenient (but a car battery in a box would be), I'm > curious about the battery-only scenario. > > Looking quickly, I can't seem to find amp-hour ratings from car > battery makers/sellers. Google finds various third-party claims, but > they're all over the map (25 to 100 Ah on the first page alone). > Assuming 7.5 A, and again doing the math, that is anywhere from 3 to > 13 hours of operation at full power. > > I know if one was planning on doing this on a regular basis, a deep > cycle battery would be highly recommended. For a one-shot, though, > pulling the battery from a car might be feasible (?). > > Anyone have additional information they'd like to share? Inquiring > minds... probably don't care. But I'd like to know. :-) > > -- Ben > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: iPhone/Smartphone stuff
Regarding T-Mobile and coverage: They have a pair of phones that will switch between cell network and 802.11b; the 802.11 server-end support is a small additional fee. I have the lower-end of the two phones that support this, the high-end one is one of the fancy smartphones. This gets me coverage anywhere I can connect to 802.11b, in particular anywhere there's a T-Mobile hotspot. Also, of course, work (even though cell reception in the building sucks) and the in-laws' house. --DTVZ On 8/4/08, Labitt, Bruce <[EMAIL PROTECTED]> wrote: > > If you are considering gsm networks, look at t-mobile. Cheaper than > at&t (at least for what I need). As Ben stated - only you can tell if > the coverage is good for you. I have had t-mobile for a few years now. > Suits my needs - including having to make calls from China and Europe. > Their smart phones leave something to be desired though... So far I > think none of the carriers have phones & plans that make sense together. > > > -Bruce > > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Ben Scott > Sent: Monday, August 04, 2008 3:10 PM > To: Greater NH Linux User Group > Subject: Re: iPhone/Smartphone stuff > > On Mon, Aug 4, 2008 at 12:32 PM, Warren Luebkeman <[EMAIL PROTECTED]> > wrote: > > I am also curious to know if you have any recommendations > > on other smartphones worth considering, and why. > > What are your requirements? Just a phone that plays MP3's? Casual > web browsing? Wireless sync of mail, contacts, and calendar to MSFT > Exchange, plus compatibility with existing business applications? > Something else? The answer will be hugely different depending on what > you need. > > > What do people think about their cell phone coverage area? > > Mobile phone coverage is a hugely personal thing. I can't emphasize > this enough. Your neighbor may have great coverage while you have > nothing. Or vice versa. And nobody really cares what their neighbor > has for coverage; all anyone cares about is if they have coverage. > > What I recommend doing is obtaining a phone for testing. Bring it > to all the areas you usually frequently. If you've got coverage > there, you'll be happy most of the time. You can still factor in > overall coverage reports to your decision, but the biggest factor > should be coverage where you routinely are. > > And ignore carrier coverage maps; they routinely lie. > > > We have Sprint now and it seems to be alright, but AT&T > > seems to have better coverage, as well as Verizon, especially > > for roaming. > > Avoid anything Nextel (iDEN) like the plague. It's a dead-end > technology. Sprint is the only US iDEN carrier, and they're trying to > get rid of it. > > Both Sprint and VZW are CDMA networks. In theory, their phones > should be compatible with each other's towers. In practice, they > don't always have roaming agreements everywhere. > > VZW prolly has the best coverage inside North America. Leave the > continent and you're in rough shape. > > AT&T is a GSM carrier. Outside of the US, it's basically GSM > everywhere (with a few notable exceptions (such as Japan, where they > have their own standard incompatible with everybody)). So if world > travel is something you do a lot of, AT&T is probably the best choice. > > As Bill McGonigle can attest, get far enough away from major > population centers, and you'll have crap for coverage no matter who > you have. Most carriers regard the northern half of NH as a foreign > country. Actually, worse; if it was another country, GSM would > probably work. I hear Iridium is still in operation ;-) > > -- Ben > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: New GNHLUG SIG
I will ignore the vitriol in both directions, but I feel it is appropriate to respond to this part: (1) People want to foster adoption of FOSS in our community. > > (2) People want a place where new users can get help with FOSS. > > (3) If you offer (1), you should also offer (2). > > Does it not make sense to have a group whose purpose is BOTH (1) and (2)? > > To me, the two activities seem to go together like whipped cream and > apple pie. It is immediately apparent to me that a SIG intended for casual users who are not concerned about e.g. config file editing might be better off excluding the advocacy component. Advocacy and "I just want to use it" are diametric opposites. I find that most "I just want to use it" folks are either bored or actively repelled by advocacy. Forcing them into the same SIG seems unwise. Is there some compelling argument for putting them together that I'm not seeing? (For the record, *I* am actively repelled by 90% of the advocacy I've seen. Unsurprisingly, I only like my brand of advocacy, which is to mention that I use Linux and that Windows irritates me, and then to shut up unless asked specific questions and just be alarmingly competent with technology. I find it works as well as anything else I've tried. Of course, my three cats are Debian, Apache, and Penguin, which does tend to draw specific questions... ;-) ) I would also never insult a perfect apple pie by contaminating it with whipped cream. Tastes vary. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: automatic hard linking
I believe JRV has a script which does roughly what you're asking about, though I think it's a grandfathered setup in groups of three rather than a month... IOW if run hourly it would keep the past three hours, then 3/6/9 hours ago, then 27/54/81 hours ago, etc. - I think he's on-list, in which case this should jog his memory to explain that it isn't what I remember it as, or offer it up, or similar. --DTVZ On Wed, Jul 23, 2008 at 1:48 PM, <[EMAIL PROTECTED]> wrote: > Hello, > > A co-worker and I were talking about various ways to do 'backups' to try > and > prevent data loss. The topic came around to a file system we had used > at a previous job. I can't remember the specifics, but we believe it was > a Network Appliance system. > > One of the cool features it offered was a series of hourly, nightly and > a monthly backup of files. We kind of surmised that it was some sort of > hard linking of the same file name in a different directory... i.e. > > ~/foo.txt > > hourly.0/~/foo.txt > > So, if you accidentally deleted your home directory copy, you could still > recover > it for a short time. Once it made it past X hours, the file would start > getting > removed from the hourly.n directories. We were never admins on the box > nor do we have experience with it, so the hard link is just a theory... > > A quick google search on automatic hard linking didn't turn anything up. > Is > there a package anyone knows of that registers for file system events and > will create temporary hard links in another location for 'accident > prevention'. > > This isn't a backup strategy (obviously) just a method for easily > recovering > files when that "Oops" happens... > > Thanks for the help. > > - Todd > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Adding a new drive / fstab
> > On 7/9/08, Labitt, Bruce <[EMAIL PROTECTED]> wrote: > > Anyone got any > > suggestions? Pitfalls on how I am thinking about things? > It seems to me that using any of the "traditional" mount points in this situation is somewhat inappropriate; the new drive is intended primarily as a resource for another machine. Given that, Thomas' suggestion of /bladeimages is a pretty sensible one. I tend to mount shared net drives on mountpoints like "/share", or mount a RAID on /raid, make a directory called "share" on it, and share that directory. It makes it obvious what physical resource is associated with the mountpoint, and you can use symlinks to organize things in a logical sense. I dislike the /mnt suggestion because to me, /mnt is for a foreign filesystem, e.g. something that might be removed. On the blade server, however, I'd probably mount the shared net filesystem under /mnt, for reasons mentioned in VAB's reply. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Netgear now touting open source WRT-compatible wireless router
Minor warning: OpenVPN is configured NOT to check for revoked certificates by default. (Default install on Debian, anyway, and I suspect it's similar elsewhere.) Not likely a big deal for home use, but for business use fortunately I was careful enough to check a known-revoked certificate the first time I needed to revoke one, because I wasn't 100% sure I'd done it properly. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: High-Level Audio Editing Language?
You could write something like MySQL as a Python module, why a special language? I'd hate to be able to use a library like that from any other language than Python, that would be awful. --DTVZ (That should in no way be construed as dislike of Python; it's language bigotry that is foolish. Python is unlikely to be the best language ever written, 10,000 years from now.) On Thu, Jun 26, 2008 at 3:35 PM, Arc Riley <[EMAIL PROTECTED]> wrote: > You could write something like that as a Python module, why a special > language? > > > On Thu, Jun 26, 2008 at 3:06 PM, Bruce Dawson <[EMAIL PROTECTED]> wrote: > >> Bill McGonigle wrote: >> > I seem to recall some audio geeks on this list. I'm curious if >> > anybody knows if there's a Free high-level audio editing language. >> > I'd like something that is to audio as Perl is to strings. >> > >> > For example, I want to take a recorded phone call (that I've made >> > with an asterisk script) to the local movie theater and trim it at >> > the second DTMF tone for '2', so I can e-mail the important part. >> > >> > I'd like to write something like: >> > >> >audiofile = >> >start_time = index( audiofile, dtmf(2), 2) >> >newaudiofile = sub( audiofile, start_time, length(audiofile)- >> > start_time ) >> >print newaudiofile >> > >> > Dreaming? >> > >> > -Bill >> > >> Audacity provides the GUI equivalent of that. >> >> Unless you're merging audio tracks, editing audio tends to defy >> scripting because you need an "ear" to listen for the pauses, pops and >> other cutting/splicing points. >> >> But if you do find one, it would be great to tell everyone of it! >> >> --Bruce >> ___ >> gnhlug-discuss mailing list >> gnhlug-discuss@mail.gnhlug.org >> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ >> > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Thinkpad T42 (parts)
Claimed. On Sun, Jun 15, 2008 at 6:09 PM, Drew Van Zandt <[EMAIL PROTECTED]> wrote: > I have a Thinkpad T42 that my friend's cat inundated with water. I yanked > the hard drive for them, the machine no longer boots and I don't care enough > to disassemble it and figure out what needs to be cleaned. The LCD didn't > get wet, and most of the other parts are probably fine - I did manage to get > it to boot a couple of times, but no longer. With power supply, if anyone's > interested, else it will get tossed in a month or so. Package deal, if you > want the supply you get to cart the laptop off to your trash pile. :-) > > --DTVZ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Thinkpad T42 (parts)
I have a Thinkpad T42 that my friend's cat inundated with water. I yanked the hard drive for them, the machine no longer boots and I don't care enough to disassemble it and figure out what needs to be cleaned. The LCD didn't get wet, and most of the other parts are probably fine - I did manage to get it to boot a couple of times, but no longer. With power supply, if anyone's interested, else it will get tossed in a month or so. Package deal, if you want the supply you get to cart the laptop off to your trash pile. :-) --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux vs. PC Commercials WAS: Re: Funniest thing I've heard today and it's only 9 AM
http://youtube.com/watch?v=cldeHjFig_c http://youtube.com/watch?v=GVOnFdMf0RU --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Alternatives to Comcast
2 KV is what we *had* to pass to ship product. --DTVZ On Thu, May 22, 2008 at 8:48 AM, <[EMAIL PROTECTED]> wrote: > > Date: Wed, 21 May 2008 22:29:40 -0400 > > From: Brian Karas <[EMAIL PROTECTED]> > > > > Actually, you can. RJ-11 plugs fit nicely in RJ-45 jacks. Alas, this > > > is not likely to do what you want. In fact, when that ring voltage > > > comes in on the line... ZAP! > > > > Ethernet and POTS service can co-exist peacefully (at least in theory) on > > the same cable. Plugging an RJ-11 phone type device into just about any > > Ethernet port (switch or host) won't cause any issues. > > > Ring voltage is only 90V, and most of these devices are designed to > handle > > 600V+ spikes. > > Again, in theory. However, I doubt many consumer networking devices > are designed to this spec. > > /me imagines a Mythbusters-style NIC/Router/Modem frying experiment... > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Alternatives to Comcast
FYI, Speakeasy DSL is *NOT* PPPoE, it's the good stuff. --DTVZ On Tue, May 20, 2008 at 9:18 PM, Dan Miller <[EMAIL PROTECTED]> wrote: > I'm in Southern Nashua. Right at the border, so I think that mv.com is > out. I will look into fairpoint though. I know I can't get fiber (that > would be ideal), I've never done DSL before, but I know its different > setup with PPoE and such. > > Dan > > Arc Riley wrote: > > for internet call the people at mv.com - great service, nothing > > blocked, and a free static ip just for asking > > > > ... if you can get them. We're under a mile from the CO here in west > > concord and we're failing the loop qual because they "dont have enough > > capacity". Fairpoint DSL (formerly verizon) is an option, if you're > > willing to spend up to an hour on hold during the daytime to talk with > > one of their reps to order. You can switch from Verizon/Fairpoint DSL > > to MV and fairpoint may qualify you even if they tell MV "no" due to > > different retail and wholesale DSL line banks. > > > > Tell 'em my name or someone else on the list who's a customer as a > referal :-) > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Brute-Force SSH Server Attacks Surge -- InformationWeek
My life just got infinitesimally easier. Thanks. Also works with scp, which is where I generally mess up the port selection. (-P instead of -p, BAH!) --DTVZ On Thu, May 15, 2008 at 2:18 PM, Ben Scott <[EMAIL PROTECTED]> wrote: > > In my $HOME/.ssh/config file: > > Host lib > Hostname liberty.gnhlug.org > Port 1776 > > Then I just type "ssh lib" and I'm in on the right port. > > -- Ben > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Brute-Force SSH Server Attacks Surge -- InformationWeek
I used to get a few thousand attempts every day on port 22. Restricting by IP is a *good* thing. Suggestion: Restrict SSH access to certain IPs. Write a PHP or Python web app that can add an IP to that list (and also conveniently tells you what your IP is.) The app should do this: 1) Text message your cell phone when an IP is added. 2) 3 minutes (or 5, or whatever) later, actually add the IP. Since adding IPs is rare, the delay isn't ordinarily an issue, nor is the text message. I'm assuming the web app would have at least some sort of trivial authentication/password as well, even just .htaccess. Since it alerts you when used, it doesn't need to be draconian. Of course, I'd rather you all stayed on port 22 with no access restrictions. I don't have to outrun the bear, I only need to outrun you. ;-) --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: computer repair
For extensive surface-mount soldering you probably need an upgraded soldering iron. I recommend the Metcal SP200 with a 1/64" hook tip. They are not, however, cheap. Definitely only for serious hobbyists or crazier. http://www.hmcelectronics.com/cgi-bin/scripts/query.cgi?query=SP200-11 --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Computer repair shop
Briefly, as I am bound for the club to dance until I can't: * Continuous ground plane, or nearly continuous, is highly desirable for prevention of crosstalk and reduction of radiated emissions. * For high-speed purposes, ground plane and power plane are nearly indistinguishable re: above. * Every chip on the surface would put a hole in the power or ground plane if things were run there. * signals between nearby chips are optimally run on the surface because then you don't need vias. To descend a layer and then return would require 2 vias, which would block routing resources on at least two layers at each via. This adds up fast. * Putting the power and ground planes right next to each other (e.g. layers 2 and 3 when 1 and 4 are the two sides) gets you some free extremely low ESR capacitance. More true in boards with lots of layers where layers are packed closer together. * Thermal/soldering issues: power and ground are usually big, fat, wide pieces of copper, i.e. heat sinks. You can ruin your board yield / soldering reliability by getting these big heat sinks too close to component pins. * Assuming blind vias are being used, you can supply quality power even to mid-field pins in a BGA - a surface power plane would be too perforated with vias to be terribly useful. * Large continuous copper areas on the surface can make the boards more likely to warp. There are ways around this, you'll notice often they crosshatch large areas like this with empty space in many cases. * EMI is least if the signals are all next to a plane. * crosstalk is least if there is a plane between two high-speed signals. * As someone else said, it's awfully nice to be able to get to the important signals for debug. * All generalizations are false. * I've left out two or three things that I thought of and then forgot; music and pretty girls call. --DTVZ On Mon, May 5, 2008 at 7:27 PM, <[EMAIL PROTECTED]> wrote: > > Date: Mon, 5 May 2008 14:00:29 -0400 > > From: "Drew Van Zandt" <[EMAIL PROTECTED]> > > Cc: gnhlug-discuss@mail.gnhlug.org > > > > > Power *should* be on the internal layers. That's where it belongs, for > > several engineering and manufacturability reasons. Call ideas > dim-witted > > Care to enlighten us? I guess PCB design is on-topic enough for this > list. (/me ducks). The only reason I can think of to run power on > internal layers is that if the designer's loose screw shorts out > something on the surface of the board, the sparks will only be 1/2 the > size. You sound like you've designed you share of PCBs. What other > reasons are there? > > For the record, my list of "dim-witted" ideas also includes things > like soft power, spam filters, and iPhones. > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Computer repair shop
Power *should* be on the internal layers. That's where it belongs, for several engineering and manufacturability reasons. Call ideas dim-witted after you have designed a few nontrivial PCBs, please. This is less true of unregulated power, but many of the same design rules hold true. --DTVZ On Mon, May 5, 2008 at 1:38 PM, <[EMAIL PROTECTED]> wrote: > > Date: Sun, 4 May 2008 23:33:12 -0400 > > From: "Ben Scott" <[EMAIL PROTECTED]> > > > these days; they just swap parts. A faulty power connector is most > > likely going to mean swapping the motherboard. In many laptops, the > > motherboard is most of the computer. So, very expensive. (Unless its > > Second that opinion, see below. > > > At the same time, the power connector is one of the few things that > > might actually be field repairable by someone with tools from Radio > > Shack. They usually have only two or three solder joints, all of > > which are relatively large, since they'll be carrying the most current > > of anything in the laptop. > > It's usually possible to solder the jack back on and epoxy it. But > some of the Inspirons have multi-layer motherboards. On these boards, > there are runs *inside* the fiberglass, completely covered and > inaccessible to a soldering iron. And, yes, some designers had the > dim-witted idea to run *power* through these internal runs. Since the > exposed face of the conductor is not likely to be larger than a few > square millimeters, repairing this kind of jack-break *is* probably > going to require replacing the whole motherboard. > > You really have to take the motherboard out and hold it up to the > light to tell if the conductors really will be accessible. > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Cheat sheets
Sort of a global man... shouldn't the syntax be: god strftime ? --DTVZ On Thu, Apr 17, 2008 at 2:38 PM, Scott Garman <[EMAIL PROTECTED]> wrote: > Labitt, Bruce wrote: > > Thanks for the toolbox link. I used to have a cribsheet like this a > > long time ago (and lost it). > > > > > This, and other helpful tips, can be found at: > > http://cb.vu/unixtoolbox.xhtml > > Handy link. I thought I'd mention a neat concept for sharing cheat > sheets that the Ruby community uses. > > http://cheat.errtheblog.com/ > > This little gem (literally - ruby utilities such as this are distributed > as packages called 'gems') will accept a command line argument and > search a wiki for community-generated cheat sheets. I used this the > other night at the NHRuby meeting to look up the strftime() format > options with a simple: > > cheat strftime > > You can see a list of existing cheat sheets that the cheat gem can > currently display here: > > http://cheat.errtheblog.com/b > > Scott > > -- > Scott Garman > [EMAIL PROTECTED] > > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: power meters [ was low power linux PC? ]
The Kill-a-watt loses all data on power loss; the other does not. Also, the displayed resolution on the kill-a-watt is a bit coarse for things like wall warts, though it apparently has higher internal resolution. I found it necessary to run a wall wart off of one for a full 48 hours to get repeatable results that agreed with manual calculations using data from a pair of multimeters. The inaccuracies were within 1/2 displayed LSB, but at very low currents that's HUGE. I don't know if the more expensive one has higher display accuracy, however, so it might suffer from the same issue. I can only speak for the one I own, and point out that it would take a LOT of increased power savings to justify the more expensive one. --DTVZ On Mon, Apr 7, 2008 at 11:53 AM, Paul Lussier <[EMAIL PROTECTED]> wrote: > Alex Hewitt <[EMAIL PROTECTED]> writes: > > > I believe this item, > > "http://www.thinkgeek.com/gadgets/travelpower/7657/"; that measures power > > consumption might have been discussed on the list before but the same > > folks now offer a more sophisticated model: > > > > http://www.thinkgeek.com/gadgets/travelpower/7acf/ > > I'm curious what the major differences between these two are. The > former costs $129.00, the latter $24.99. Is it that the Watt's UP! > model records and stores info whereas the Kill'O'Watt merely displays > the current stats? > > And, does anyone know of something like this that measures 220VAC as > well? (I'd really like to know what my stove and clothes dryer cost > me :) > > > -- > Seeya, > Paul > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: low power linux PC?
Transformer-based "wall-wart" efficiency: Typically 23 - 28 % Switching "wall-wart" efficiency: Typically 80 - 90% For a device that will be on 24/7, a switching supply pays for itself in less than a year in New England. --DTVZ On Mon, Apr 7, 2008 at 11:14 AM, Alex Hewitt <[EMAIL PROTECTED]> wrote: > > On Mon, 2008-04-07 at 09:37 -0400, Jon 'maddog' Hall wrote: > > There are a few "notebook drive" enclosures on the market that work off > > the power of the USB port with a 2.5 inch disk inside. You have to be > > careful in the selection of the 2.5 inch drives that you put in the > > enclosures to have very low power requirements, but you can find 160 GB > > drives that do work. > > > > Then some of the "tiny-PC" boxes previously mentioned can drive several > > of these drives, providing a "server" that can run at very low power, > > albeit with drives external to the main system box (and the system box > > might also have its own internal drive). You may want to test one or > > two external enclosure/drive/"tiny-pc" combinations, as you are dealing > > with fairly close tolerances here. > > > > I should also mention that if the enclosure/disk combinations need a bit > > more power most have an axillary power input to "get it over the hump", > > which could be supplied by one power dongle of suitable power output > > providing the power to all the units at once. You might want to look at > > the efficiency of these power dongles, however, as some might waste more > > power than they provide. > > > > md > > As an aside, I noticed that most of the low cost network hardware > vendors provide power cubes that are very simple transformer/AC bridge > designs or alternatively switched type supplies. The switched types are > generally much smaller and more efficient. I have one Netgear VPN router > that came with a 12 volt power cube of the former type that must weigh > close to a pound. Later models came with a switched variant that may > have weighed 3 or 4 ozs. The switched supply also generates less heat. > > -Alex > > > ___ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
