Re: Success stories with MythTV and Schedule Direct?
Neil Joseph Schelly wrote: Even bringing in my old data was incredibly easy, since just starting the backend with an older database causes it to automatically upgrade the database schema step-by-step. It was a lot less painful than I expected and now I'm up-to-date and using Schedules Direct and all. I'm happy. -N Great to hear. I took on the update myself this weekend, an in-place FC 5 - 6 upgrade, MythTV upgrade and replacing the schedule provider with Schedules Direct. Worked great. I was glad to send the SD folks my subscription, a pretty small token of appreciation for all of their hard work. I hope they are able to make SchedulesDirect self-sustaining and successful! -- 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: sendmail masquerading question
Steven W. Orr wrote: I have a linux box saturn running sendmail which is the hub where the MX record for my domain points. I have a box inside the house called pluto that sends all its mail to saturn using SMART_HOST for delivery. All is good in the universe. When sending mail from pluto, I want the addresses that the message is sent to, to be changed so that *any* address that is bound for syslang.net does not get sent to pluto.syslang.net. All addresses on saturn are valid on pluto, but I don't want any mail sent from pluto to not be sent through saturn. (I do already have EXPOSED_USER(`root')) The MASQ stuff that I see seems to only affect the From address and not the To or Cc etc addresses. Anyone know how to doo dees? Yep, there's your problem right there. Most likely you set up your mail server BEFORE August 2006, when pluto was still considered a planet. The new standards mandate that pluto is now considered dwarf planet, which everyone knows can't relay or send mail in any other fashion. Please get the latest sendmail package and recompile from source with the directive PLANET_MASQUERADE set to Neptune. This should resolve your issue. -chris ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
[GNHLUG] SLUG/Durham / Mon 10 Sep / RAID and LVM storage management
What : RAID and LVM storage management Date : Mon 10 Sep 2007 (TONIGHT) Time : 7 PM to 9 PM Where: Room 301, Morse Hall, UNH, Durham, NH For the September 2007 SLUG/Seacoast/UNH/Durham meeting, Ben Scott will be speaking on storage management using RAID and LVM. === About the presentation === RAID (Redundant Array of Independent Disks) and LVM (Logical Volume Manager) let you do more with your disks than create partitions and filesystems. With RAID, you can combine disks to make larger filesystems, and/or add redundancy to help protect against disk failure. LVM takes that a step further, by letting you create arbitrary Logical Volumes (to hold filesystems), which can be easily reallocated, resized, moved, and copied (snapshots). Ben will be talking about some of the concepts, review the tools and techniques available, and (hopefully) doing a live demonstration of some of the things you can do. The specifics will be flexible, in response to attendee demand. === About the speaker === Ben is a local Linux user, enthusiast, and advocate. He handles the care and feeding of the GNHLUG Internet server, and is a GNHLUG Bored^W Board Member. === About SLUG === SLUG is the Seacoast Linux User Group, and is a chapter of GNHLUG, the Greater NH Linux User Group. Rob Anderson is the SLUG coordinator. SLUG meets the second Monday of every month, same time, same place. You can find out more about SLUG and GNHLUG at the http://slug.gnhlug.org/ and http://www.gnhlug.org/ websites. Meetings take place starting at 7:00 PM. Meetings are open to all. The meeting proper ends around 9ish, but it's not uncommon to find hangers-on there until 10 or later. They take place in Room 301 (the third floor conference room), of Morse Hall, at the University of New Hampshire, in Durham. ___ gnhlug-announce mailing list [EMAIL PROTECTED] 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/
[semi-OT] Review: Comcast Workplace cable Internet
At work, we recently subscribed to Comcast Workplace cable Internet service, to supplement our existing feed. Since Internet feeds seem to be a popular topic on this list, and there is a lack of good information out there, I thought I'd post a write-up of my own experiences. Basically, the intent here was to get some cheap, disposable bandwidth for web browsing. This is intended to complement the SLA feed we get from a local ISP, not replace it. Service location is Amesbury, MA. This is an old Adelphia town, FWIW. COST We're paying $64/month. $59/month base, plus $5/month for a static IP address. (I was told a block of 5 addresses would cost $10/month.) This is an introductory offer. After a year, the price is supposed to go up. Supposedly to $105/month if it happened today. We'll see. There were some one-time costs related to getting a line run on the poles to our facility. These will not generalize to anyone else's experiences, so I'm not going to post them. SLA SLA = Service Level Agreement. This is what spells out exactly what you're getting for your money, and what the provider promises. Basically, this feed comes without one. If we're happy with it, great. If not, we're free to cancel the service. Comcast did offer a 1.5 meg symmetric feed with what they called an SLA. However, the SLA only gave a refund schedule which kicked on on unavailability. They never defined available. Specifics about things like committed rate, packet loss, and round trip time were nowhere to be found. Sales rep couldn't provide more detail. In short, if you need or want an SLA, Comcast is not the right choice. SPEED Advertised speed: Varies. The sales rep told me it would burst to 12 megabit down, 2 megabit up. The work order the installer brought just says 6 megabit down, 768 kilobit up. Given that none of it is guaranteed, that Comcast explicitly states it will vary and burst and clamp, and that this is all just speeds to the nearest concentration point, these numbers are pretty worthless anyway. Further: Comcast employs a bursting algorithm that lets you get much higher speeds at the start of a download (which I guess means TCP connection). It clamps that down after a few seconds. I see that as pretty reasonable behavior, since it makes web browsing *really* fast without letting bandwidth hogs capsize the boat, and Comcast loudly advertises they do this. (SpeedBoost is their trademark for it.) But if your life consists of downloading disc images or other large files, Your Mileage *Will* Vary. At http://www.speedtest.net: To NYC, I get around 15 megabits down and 2 up. To San Jose, around 10 down and 2 up. Those numbers are also fairly artificial, since the providers make sure they're well connected to the test sites, but at least they have *some* connection to reality. Downloading a 16 megabyte Symantec AV update package took 11 seconds (roughly 12 megabit throughput). However, watching the numbers, throughput started to take a real nose dive a few seconds in. See above about bursting/clamping. Downloading the CentOS 5 CD BitTorrent two weeks ago saw speeds bounce all over the place. The swarm may have been unstable, or it might have been general irregularities in the feed, or an artifact of the burst/clamp algorithm. Dunno. Interactive SSH performance seems pretty darn snappy. Spot checking average RTT with ping: Geographically nearby hosts seems to hover around 20 ms. Ditto for unicast East Coast root DNS servers which respond to ping. anycast and West Coast servers vary from 20 to 90 ms. (Keep in mind that the roots may not give ICMP a high priority.)I see around 10 ms for UNH hosts. www at Google and Yahoo around 20 ms. FEED DELIVERY The static IP is delivered via plain old Ethernet. Just configure address, netmask, and default gateway, and go. Comcast installed a small box that is a combination of cable modem, IP router/firewall, and four port Ethernet switch. It says Comcast and SMC on it. It appears to be a re-badged SMC SMC8014-BIZ, with firmware modified for Comcast. They gave me a username/password to manage my side of the box. Fairly typical SOHO firewall/router web UI. The box has multiple IP networks on the local side. One is the static IP subnet. It's a CIDR /30 -- our own firewall gets an IP address, plus the Comcast box has one. The other is an RFC-1918 network, a /24 subnet of the 10/8 net. The box does NAT for that. There's also a DHCP server for the NAT net (web UI says you can turn the DHCP off). The web UI has options for firewall/NAT, including port forwarding and triggering. According to the Comcast docs, I can actually use the CPE's local side public IP address to forward ports to my equipment. So I guess it's kind of like having one-and-a-half static IP addresses. SERVICE BLOCKING Outbound SMTP, web, SSH, BitTorrent, etc., all appeared to work right away. Inbound attempts failed at
Re: [semi-OT] Review: Comcast Workplace cable Internet
On Monday 10 September 2007 15:56, Ben Scott wrote: Like I said: Cheap, disposable bandwidth. The speed really is quite impressive for the price. Getting an SLA feed with a committed rate of 12 megabit/sec from a real ISP would easily cost us over $1000 per month. I wouldn't rely on it for critical operations, but to complement our SLA feed, it seems like a good solution so far. Where could you get anywhere close to 12mbps for anywhere close to $1000/month? I've found T1s in the range of $500-1000/month and anything larger seems to jump up to several thousand/month at least. -N ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [semi-OT] Review: Comcast Workplace cable Internet
Ben Scott wrote: COST ... There were some one-time costs related to getting a line run on the poles to our facility. These will not generalize to anyone else's experiences, so I'm not going to post them. Ack! Phht. Don't assume this! I (and at least one other poster on this list) have had to pay to have them run wire on poles to our places. In my case, I think it cost about $6K to run it about 0.56 mile. SLA SLA = Service Level Agreement. This is what spells out exactly what you're getting for your money, and what the provider promises. Basically, this feed comes without one. If we're happy with it, great. If not, we're free to cancel the service. Comcast did offer a 1.5 meg symmetric feed with what they called an SLA. However, the SLA only gave a refund schedule which kicked on on unavailability. They never defined available. Specifics about things like committed rate, packet loss, and round trip time were nowhere to be found. Sales rep couldn't provide more detail. I seem to remember somewhere that Comcast's available meant you get a signal. This is generally possible if the wire is unbroken between the last pole and your building entrance. However, this does not guarantee signal quality - which is what matters here. In short, if you need or want an SLA, Comcast is not the right choice. Very True. ... Hope somebody finds this info useful. Yes. We came to a similar conclusion - its great for general web surfing. However, don't plan on running much in the way of servers in your home/business on this line; things start getting rather sporadic (for both you and your clients). --Bruce ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [semi-OT] Review: Comcast Workplace cable Internet
On 9/10/07, Bruce Dawson [EMAIL PROTECTED] wrote: There were some one-time costs related to getting a line run on the poles to our facility. These will not generalize to anyone else's experiences, so I'm not going to post them. Ack! Phht. Don't assume this! I (and at least one other poster on this list) have had to pay to have them run wire on poles to our places. In my case, I think it cost about $6K to run it about 0.56 mile. Exactly. Our cost here was radically different. I know from past experience that other, apparently similar plant extensions have had very different costs. It depends on a number of factors, including the existing services on the poles, whether Comcast has to submit a Make Ready order to other utilities, closest existing line, signal strength at that point, run length, condition of the poles (can they take more weight?), type of line that needs to be run (RG-6? RG-11? semi-rigid? optical?), if amplifiers/repeaters/etc are needed, physical access, etc, etc. And those are just the technical factors. Promotions, sales district, how good you are at negotiating, service you're buying, other potential customers on the line, etc., can all come into play, too. And probably the phase of the moon. So our cost for this is only useful if you're getting a line run to our building. Since we've paid for that now, you won't ever have to do that, even if you move in here. :-) If somebody thinks they might be interested in getting Comcast to run a line to their doorstep, they should call Comcast and ask for a quote. That won't cost them anything but time, and it's the only way to get a useful answer. -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [semi-OT] Review: Comcast Workplace cable Internet
Ben Scott wrote: ... If somebody thinks they might be interested in getting Comcast to run a line to their doorstep, they should call Comcast and ask for a quote. That won't cost them anything but time, and it's the only way to get a useful answer. Comcast's standard answer seems to be about $30,000 for any place that's remotely rural and doesn't have comcast already on the poles. You really need to get them to come out and do a survey of your location. --Bruce ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [semi-OT] Review: Comcast Workplace cable Internet
On 9/10/07, Neil Joseph Schelly [EMAIL PROTECTED] wrote: Where could you get anywhere close to 12mbps for anywhere close to $1000/month? Like I said, over $1000 month. The key word being over. I didn't say *how much* over. ;-) I haven't priced specifics because it's way more than we need, and way more than we want to spend. I know how much our existing SLA feed costs, and that's enough! :-) I also didn't get into specifics because doing so virtually guarantees a bunch of people replying with their anecdotal experience (My cousin Marv can get you a T1 for 27 bucks a month!, Back in 1993, we had to pay $32,768 a month for a 56 K frame relay circuit to a trailer mounted on pontoons in a Florida swamp, etc.). Apparently not doing so doesn't guarantee the lack of same, though. ;-) -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: [semi-OT] Review: Comcast Workplace cable Internet
On Monday 10 September 2007 16:44, Ben Scott wrote: On 9/10/07, Neil Joseph Schelly [EMAIL PROTECTED] wrote: Where could you get anywhere close to 12mbps for anywhere close to $1000/month? Like I said, over $1000 month. The key word being over. I didn't say *how much* over. ;-) snip Apparently not doing so doesn't guarantee the lack of same, though. ;-) No worries - I just hoped you had a reference for those numbers... I had to jump at the opportunity, even if the chances were slim. -N ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: a simple question about grep
Thank you for all the great solutions! Because of my extremely limited *nix knowledge, I'd use the approach of two grep's in a pipeline, such as the one grep '^\*' yourFile | grep -v '^\*INDICATOR' suggested by Michael, as it's simple to understand and easy to memorize. Thank you again. Zhao ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
