Re: autonegotiation (was: Can only the 100Mbs part of a 10/100Mbs router fail?)
Once upon a time autonegotiation wasn't standardized. Then it was. But we still have non-standard gear in service here and there so it still bites people once in a while and it gets a bad rap. 3COM gear has been the biggest thorn in my side from this problem - they put out 10/100 managed switches that didn't support standard autonegotiation as recently as 2001. Plus, some telcos/ISP's are still putting in customer premise gear that can do 10 and 100 and full and half, but does not support autonegotiation at all, so you can't just assume all new gear 'works correctly' either. By now, though, it's pretty safe to say that any new gear that supports autonegotiation will interoperate correctly. -Bill Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Text: [EMAIL PROTECTED] AIM: wpmcgonigleSkype: bill_mcgonigle ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
> > "Ken D'Ambrosio" <[EMAIL PROTECTED]> writes: > >> is the fact that autonegotiation is an imperfect science. > > In what way are the autonegotiation specs. deficient? Just curious. While I've never read the RFC, to the best of my knowledge, there's no problem with the specs, themselves. Once again, it's a case of "the Devil is in the details." I think it's the implementation -- especially cross-vendor issues -- that's the biggie. I *know* that, four years ago (wow, time flies), it would have been incredibly foolhardy to assume that Cisco would autonegotiate with anything that wasn't Cisco (leastwise, for production equipment). I've also seen the occasional, though less frequent, horkage of other vendors' autonegotiation. By and large, this is something that's probably relegated to the past, but when bumping into an issue like this, it's certainly a problem to be on the lookout for. [Bad grammar, but hey...] -Ken ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Decoding Microsoft (Outlook) Attachments
Hi, Greg -
My, this brings back memories!
Back when our shop still used Microsoft software (but Netscape, never
OutBack!) we saw this same problem. What a pain - even on a Windows
system you couldn't read the attachments!
There were solutions (although not from Microsoft). Here's a URL for
another one (the one we used back then), FWIW:
http://www.fentun.com/linux.html
("fentun" - "un" "tnef" - heh, heh)
'Once you've downloaded the file, gunzip it ("gzip -d fentun.gz")
and change the permissions on it so that it can be executed
("chmod 755 fentun"). Then put it in a handy bin/ directory (like
/usr/local/bin) and set it as the handler for "application/ms-tnef"
MIME content.'
Addtional discussion of the background on TNEF is at:
http://ufaq.org/modules.php?name=Forums&file=viewtopic&p=11782
and (Microsoft's advice to their own users, which conceivably could
be helpful if you want to explain to your senders how the problem
arises):
http://office.microsoft.com/Assistance/2000/olfrmt.aspx
-Bill
P.S. [OFF TOPIC, for amusement only] Using Firefox reading the above
Microsoft page generates a message, in RED,
Warning: You are viewing this page with an unsupported Web browser.
This Web site works best with Microsoft Internet Explorer 5.01 or
later or Netscape Navigator 6.0 or later. Click here for more
information on supported browsers.
When you "click here" you get a yellow triangle and a message:
This service is unavailable
...
The server is not able to process your request.
Clicking Troubleshooting Tips (from there) yields:
NOTE. We are aware that some users are experiencing problems with
Microsoft Office Online even when using supported browsers. If you
are using a supported browser, you can still use many of the site
features even though warning messages are displayed. We apologize
for any inconvenience.
Gee, this programming business must be harder than it looks, if the
world's largest software company just prints an apology instead of
getting it right. I wonder how good their security is.
On Tue, 07 Dec 2004 23:03:25 -0500
Greg Rundlett <[EMAIL PROTECTED]> wrote:
> Around this time of year, people share a lot of photos. Pictures of
> friends, family, the kids, their pets, their Christmas trees etc. The
> problem is that many of these people are chained to a Microsoft email
> empire, and thus using email software that
>
> a) writes html-formatted (or Rich Text) messages by default
> b) encodes attachments in a proprietary way
>
> You yourself have probably seen these messages, where the sender claims
> to have attached some photos, but all you see is something called "Part
> 1.2" or "Winmail.dat" If you try to open this attachment, you will see
> that it is encoded as type application/ms-tnef. It is unlikely that your
> Linux system will know what to do with it. This message is meant to
> share with you the utilities that exist to help you receive your
> Microsoft-using counterparts with the humble grace and compassion
> appropriate for the season.
>
> ms-tnef stands for "MicroSoft Transport Neutral Encapsulation
> Format"[1], which, because it comes from Microsoft, is neither neutral
> nor formatted the way standard MIME mail messages are encoded.
> Although I haven't tested this, some Windows versions of free software
> may decode these messages automatically by calling on some Windows dll.
> Still, it would be nice to decode them on a free operating system.
>
> Enter the linux utility tnef[2]. tnef is a command-line utility that
> can unpack those pesky Microsoft attachments, and is actually included
> in many (most?) modern Linux distributions. If you do not have it, you
> can download it from the tnef project site on SourceForge.net
>
> My Debian Sarge includes a GUI version called ktnef that I is bundled
> with KDE and integrated into KMail. Located at /usr/bin/ktnef on my
> system, this utility can be launched and allows you to visually open,
> examine the contents of, and extract the ms-tnef attachments. Since I
> use Mozilla for email, it doesn't know what to do with these ms-tnef
> attachements. So, you must first save the attachment in question before
> using the utility.
>
> To avoid this two-step process of saving the attachment and launching
> the utility independently, you will want to register the ktnef
> application as a helper for Mozilla[3]. Open Mozilla and under the
> 'Edit->preferences->Navigator->helper applications' menu, you will want
> to associate "application/ms-tnef" with the command "/usr/bin/ktnef".
> (To find the correct location of the program on your system, issue this
> command at the command shell: 'locate ktnef') Once you have made this
> association, you can restart Mozilla and it will be ready to launch
> ktnef automatically whenever you open such an attachment.
>
> Don't
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
The rapid flashing of the port the 100Mbit link is connected to is quite possibly the port (in 10 Mbit mode) interpreting 100 Mbit link pulses as data, which is not an uncommon occurrence. Use the excuse to get yourself a WRT54G. ;-) (Yes, it runs Linux.) --Drew On Wed, 08 Dec 2004 11:36:46 -0500, Larry Cook <[EMAIL PROTECTED]> wrote: > Dan, > > Thanks for your repsonse. > > > In one case it was a bad patch cable. The cable worked at 10Mbps but not > > 100Mbps. I didn't try to determine why. Just replaced it. > > I've tried three different cables directly connecting computer #2 and the > router. No difference. > > > In some cheap 10/100 switches, the entire switch has to back down to 10, > > if any 10 device is attached. > > That does not appear to be the case with my Actiontec DSL-Modem/Router. > Computer #1 has always been 10Mbs and computer #2 has always auto-sensed to > 100Mbs (according to it's indicator lights). > > > I've seen 100 equipment fail to > > communicate because the link negotiation fails. > > In those cases, did the status light indicate it has auto-sensed to 100Mbs? > > > I've had network connections negotiate one speed and fail to communicate > > on it. I've replaced either the network card or the switch to solve. > > Okay. That sounds like my problem. > > > As someone mentioned, the connection between the 10 and 100 networks in > > the switch may have failed. > > Okay. That could be the reason I get no communication. > > > None of the ones I've seen were worth the effort of identifying the > > cause since all were with real cheap equipment. Swapping out was more > > economical than finding the underlying problem. > > Yes, I agree. Even if I find the underlying problem in the router, it's > probably not "fixable". I really just need to confirm the router is the > problem. Based on the responses so far, it appears that it could be having a > 100Mbs only problem. > > > But, yes, I've seen the 100Mbps part of a switch fail, but 10Mbps still > > work. I've used the failing switch elsewhere in our in-house network > > just for 10Mbps equipment. It would not successfully connect to 100Mbps > > devices. Eventually it just died completely. > > Maybe mine is on it's way out too. A ping of the router was showing 30-60% > packet loss from a 100Mbs computer. Now I have 100% packet loss from a 100Mbs > computer. > > Thanks, > Larry > > > > > ___ > gnhlug-discuss mailing list > [EMAIL PROTECTED] > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss > ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
Thanks for all the responses. It seems like the router is having a 100Mbs problem, since a few of you have also experienced that kind of problem. Although I do have some suggestions to follow up on just to make sure. I guess I'll just move my 10Mbs hub directly in front of the router and put everything through that for now while I research a new DSL-Modem/Router. Or maybe I should just get a seperate DSL-Modem rather than the combo device. Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
Dan, Thanks for your repsonse. In one case it was a bad patch cable. The cable worked at 10Mbps but not 100Mbps. I didn't try to determine why. Just replaced it. I've tried three different cables directly connecting computer #2 and the router. No difference. In some cheap 10/100 switches, the entire switch has to back down to 10, if any 10 device is attached. That does not appear to be the case with my Actiontec DSL-Modem/Router. Computer #1 has always been 10Mbs and computer #2 has always auto-sensed to 100Mbs (according to it's indicator lights). I've seen 100 equipment fail to communicate because the link negotiation fails. In those cases, did the status light indicate it has auto-sensed to 100Mbs? I've had network connections negotiate one speed and fail to communicate on it. I've replaced either the network card or the switch to solve. Okay. That sounds like my problem. As someone mentioned, the connection between the 10 and 100 networks in the switch may have failed. Okay. That could be the reason I get no communication. None of the ones I've seen were worth the effort of identifying the cause since all were with real cheap equipment. Swapping out was more economical than finding the underlying problem. Yes, I agree. Even if I find the underlying problem in the router, it's probably not "fixable". I really just need to confirm the router is the problem. Based on the responses so far, it appears that it could be having a 100Mbs only problem. But, yes, I've seen the 100Mbps part of a switch fail, but 10Mbps still work. I've used the failing switch elsewhere in our in-house network just for 10Mbps equipment. It would not successfully connect to 100Mbps devices. Eventually it just died completely. Maybe mine is on it's way out too. A ping of the router was showing 30-60% packet loss from a 100Mbs computer. Now I have 100% packet loss from a 100Mbs computer. Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
Ken, One thing to contemplate -- though if it had been working before, it's not terribly likely to be the problem -- is the fact that autonegotiation is an imperfect science. This router has been working for a year and half with computer #1 (10Mbs) and #2 (100Mbs) connected to it. The 100Mbs switch with computers behind it was added over a year ago and has been working fine. I've made no changes to any of this. I first noticed a problem on my RH8 system behind the 100Mbs switch losing the VPN connection to work. After about the fifth time of having to reestablish the connection I started checking the network. A ping of the router showed a 30-60% packet loss! Thinking my problem was the 100Mbs switch to the router, I swapped it with the 10Mbs hub. Everything was working fine, so of course I assumed it was the 100Mbs switch. But yesterday my wife couldn't get on the internet with computer #2 connected directly to the router. So now I'm at my current theory that the 100Mbs part of the router is the problem. Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
Brian, Thanks for your response. Every 10/100 device I've seen in the last 10 years has used 1 chip to handle the 10/100 PHY. This means that it would be (IMO) HIGHLY unlikely that only the 100Mbs portion could/would fail, I would expect all or nothing. One thing I did notice is that when a 100Mbs device is connected to the router, the router's light for that port flashes very fast, indicating a lot of traffic. I ran ethereal on computer #2 and it was not getting any response to it's DHCP, nor was it seeing any incoming traffic. Based on past experience (is there such a thing as *future* experience?) I would suspect the switch (I am assuming it's a cheapie Linksys type device?) and/or the cabling. > My suggestions would be to check/replace the cabling. Move the switch physically closer to the router, try plugging a PC directly into the router (might need a crossover cable for this). At this point I suspect something in the router. Computer #2 is connected directly to it. I tried all four ports and tried two other cables. What are you usng for a router? It is an Actiontec R1520SU _4 Port Wireless-Ready DSL Gateway_ (basically a DSL modem/broadband router device). Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
Travis, Thanks for your response. It could be a duplex mismatch but I doubt it. I have had this happen to myself personally, where the 100mb part didn't work and the 10mb part did. Okay, so it is a possibility. I assume by router you mean broadband router, not a "real" router. Yes, it is an Actiontec R1520SU _4 Port Wireless-Ready DSL Gateway_ (basically a DSL modem/broadband router device). Most consumer level 10/100 "switches" or "routers" are switching hubs. That is there's a 100mb hub and a 10mb hub and the switching happens between the 10 and 100mb parts, not between each port. So that part might also be broken. So if the 10Mb hub to 100Mb hub connection is broken, and if the DSL connection and the Admin HTTP server is via the 10Mb hub, then the 100Mbs ports would not be able to get to the internet, the admin webpage, or computer #1 (10Mbs), but they should be able to get to other 100Mbs devices. I don't recall if computer #2 (100Mbs) could get to the computers behind the 100Mbs switch. I'll have to give that a try. Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Wireless *switch*?
On Tue, 2004-12-07 at 11:24, Cole Tuininga wrote: ... > DSL -- firewall/NAT -- switch -- wired ethernet boxes > | > WAP -- wireless devices > > (hope the ASCII "art" comes through ok) Yep. This represents my home setup pretty much -- just replace "DSL" with "Cable Modem" -- but I also do port forwarding from the "firewall/NAT" to various wired boxes for specific services. For instance, two of my boxes has running web servers I use for testing, so I have to map a different port to each. Same for ssh, etc. As far as the DHCP server, I don't have the firewall/NAT doing that -- I have one of my Linux boxes doing that. Reason being is that I have greater control over how the NAT addresses are distributed, and I can tie specific NAT addresses to specific MAC addresses so I can map names to these boxes with the name server, also running on the same box. You could also use this technique to set off a specific range of addresses for your wireless connections. What I want to do in the future is this: CModem -- [Linux Firewall NIC1 -- NIC2 NAT] -- switch -- wired boxes | wireless -- WiFi boxes router As this should give me the greatest level of control and eliminate the sometimes flaky wireless router at being so heavily loaded. Yes, I've had it fall over on me during high demands such as when I am copying gigabytes of files from one wired box to another. Along with that dream setup is rewiring my house for gigabit LAN. But the current 100Mbit setup is fast enough for everything I do, including watching movies across the lan. And added benefit to my "dream" setup is that I can simply power down the wireless router when I'm not using it, thus removing any concerns of that becoming a security hole. Oh, there is much more to my dream setup than you see here. The above is no big deal, actually. One of the biggest parts of this is having a dedicated file server that can handle up to a TB of storage or greater to serve all the other computers on the network. -- Fred -- [EMAIL PROTECTED] -- place "[hey]" in your subject. The mass of humans on planet Earth -- regard them as the ebbing seas in the winds of change. They ebb, they flow, they know not where to go. ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
If the crystal on the router that feeds the 10/100 PHYs drifts out of spec, 100 would stop working, 10 would probably be more forgiving. Is this likely? No, but it is possible. Just my $0.01999 --DTVZ ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
[EMAIL PROTECTED] writes: > problem with the specs, themselves. Once again, it's a case of "the Devil is > in the details." I think it's the implementation -- especially cross-vendor > issues -- that's the biggie. FYI: autonegotiation is specified by IEEE specs, not RFCs. It is also my perception that the problem here is with particular implementations and not the specs. Regards, --kevin -- GnuPG ID: B280F24E And the madness of the crowd alumni.unh.edu!kdc Is an epileptic fit -- Tom Waits ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
"Ken D'Ambrosio" <[EMAIL PROTECTED]> writes: > is the fact that autonegotiation is an imperfect science. In what way are the autonegotiation specs. deficient? Just curious. Thanks, --kevin -- GnuPG ID: B280F24E And the madness of the crowd Is an epileptic fit -- Tom Waits ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
I'm having a network problem that appears to be that the 10/100Mbs ports on my router are no longer working at 100Mbs, but are working at 10Mbs. Is it possible that just the 100Mbs part could fail? I've seen this problem a few times. In one case it was a bad patch cable. The cable worked at 10Mbps but not 100Mbps. I didn't try to determine why. Just replaced it. In some cheap 10/100 switches, the entire switch has to back down to 10, if any 10 device is attached. I've seen 100 equipment fail to communicate because the link negotiation fails. I've had network connections negotiate one speed and fail to communicate on it. I've replaced either the network card or the switch to solve. As someone mentioned, the connection between the 10 and 100 networks in the switch may have failed. None of the ones I've seen were worth the effort of identifying the cause since all were with real cheap equipment. Swapping out was more economical than finding the underlying problem. But, yes, I've seen the 100Mbps part of a switch fail, but 10Mbps still work. I've used the failing switch elsewhere in our in-house network just for 10Mbps equipment. It would not successfully connect to 100Mbps devices. Eventually it just died completely. -- Dan Jenkins ([EMAIL PROTECTED]) Rastech Inc., Bedford, NH, USA --- 1-603-206-9951 *** Technical Support for over a Quarter Century ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
Hey, Larry! One thing to contemplate -- though if it had been working before, it's not terribly likely to be the problem -- is the fact that autonegotiation is an imperfect science. As an example, at Cisco, we always had to peg our server connections at 100MBit on the not-so off chance that they'd come up and autonegotiate incorrectly. So, in a nutshell: if there's a way to tell your interface, "Be 100 Mbit!", then try it out. -Ken Larry Cook wrote: I'm having a network problem that appears to be that the 10/100Mbs ports on my router are no longer working at 100Mbs, but are working at 10Mbs. Is it possible that just the 100Mbs part could fail? Here's my scenario if anyone is interested. Connected to the router are the following: Computer #1 w/ 10Mbs NIC Computer #2 w/ 10/100Mbs NIC (auto-senses to 100Mbs) 100Mbs switch Computer #1 (10Mbs) works fine, but Computer #2 (100Mbs) and everything behind the 100Mbs switch cannot get to the router. Switching ports on the router and power-cycling the router made no difference. I put computer #2 (100Mbs) behind the 100Mbs switch and it can get to all computers behind the switch, but not to the router. So this tells me that the NIC in computer #2 is okay. It also seems to imply that the 100Mbs switch is okay since computer #2 can talk to another 100Mbs computer behind the switch. If I replace the 100Mbs switch with a 10Mbs switch, then everything behind it can now get to the router, including computer #2 which auto-senses to 10mbs. But when I move computer #2 back to the router, it auto-senses to 100Mbs and cannot get to the router. So the only thing that seems to explain my problem is that the 100Mbs part of my router has gone bad, although devices connecting to it are auto-sensing to 100Mbs. Or is there something that I am overlooking, or something else I should try? Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
RE: Can only the 100Mbs part of a 10/100Mbs router fail?
Every 10/100 device I've seen in the last 10 years has used 1 chip to handle the 10/100 PHY. This means that it would be (IMO) HIGHLY unlikely that only the 100Mbs portion could/would fail, I would expect all or nothing. Based on past experience (is there such a thing as *future* experience?) I would suspect the switch (I am assuming it's a cheapie Linksys type device?) and/or the cabling. My suggestions would be to check/replace the cabling. Move the switch physically closer to the router, try plugging a PC directly into the router (might need a crossover cable for this). What are you usng for a router? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Cook Sent: Wednesday, December 08, 2004 8:19 AM To: GNHLUG Subject: Can only the 100Mbs part of a 10/100Mbs router fail? I'm having a network problem that appears to be that the 10/100Mbs ports on my router are no longer working at 100Mbs, but are working at 10Mbs. Is it possible that just the 100Mbs part could fail? Here's my scenario if anyone is interested. Connected to the router are the following: Computer #1 w/ 10Mbs NIC Computer #2 w/ 10/100Mbs NIC (auto-senses to 100Mbs) 100Mbs switch Computer #1 (10Mbs) works fine, but Computer #2 (100Mbs) and everything behind the 100Mbs switch cannot get to the router. Switching ports on the router and power-cycling the router made no difference. I put computer #2 (100Mbs) behind the 100Mbs switch and it can get to all computers behind the switch, but not to the router. So this tells me that the NIC in computer #2 is okay. It also seems to imply that the 100Mbs switch is okay since computer #2 can talk to another 100Mbs computer behind the switch. If I replace the 100Mbs switch with a 10Mbs switch, then everything behind it can now get to the router, including computer #2 which auto-senses to 10mbs. But when I move computer #2 back to the router, it auto-senses to 100Mbs and cannot get to the router. So the only thing that seems to explain my problem is that the 100Mbs part of my router has gone bad, although devices connecting to it are auto-sensing to 100Mbs. Or is there something that I am overlooking, or something else I should try? Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Can only the 100Mbs part of a 10/100Mbs router fail?
It could be a duplex mismatch but I doubt it. I have had this happen to myself personally, where the 100mb part didn't work and the 10mb part did. I assume by router you mean broadband router, not a "real" router. Most consumer level 10/100 "switches" or "routers" are switching hubs. That is there's a 100mb hub and a 10mb hub and the switching happens between the 10 and 100mb parts, not between each port. So that part might also be broken. I'm having a network problem that appears to be that the 10/100Mbs ports on my router are no longer working at 100Mbs, but are working at 10Mbs. Is it possible that just the 100Mbs part could fail? Here's my scenario if anyone is interested. Connected to the router are the following: Computer #1 w/ 10Mbs NIC Computer #2 w/ 10/100Mbs NIC (auto-senses to 100Mbs) 100Mbs switch Computer #1 (10Mbs) works fine, but Computer #2 (100Mbs) and everything behind the 100Mbs switch cannot get to the router. Switching ports on the router and power-cycling the router made no difference. I put computer #2 (100Mbs) behind the 100Mbs switch and it can get to all computers behind the switch, but not to the router. So this tells me that the NIC in computer #2 is okay. It also seems to imply that the 100Mbs switch is okay since computer #2 can talk to another 100Mbs computer behind the switch. If I replace the 100Mbs switch with a 10Mbs switch, then everything behind it can now get to the router, including computer #2 which auto-senses to 10mbs. But when I move computer #2 back to the router, it auto-senses to 100Mbs and cannot get to the router. So the only thing that seems to explain my problem is that the 100Mbs part of my router has gone bad, although devices connecting to it are auto-sensing to 100Mbs. Or is there something that I am overlooking, or something else I should try? Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: recovering lost passwords (mac os 10.3)
Solution found, thank you. the following is a summery of the problem and the solution Situation - I found(got, received) a Macintosh dual g3 workstation that was not powering on (ram was forced in to the slot the wrong way) once i fixed it it booted into mac os 10.3 auto login to the admin account. Problem --- in order to add user accounts, install software, enable root user, etc... you need to admin password. douh in this situation i did not have it Solution --- boot the machine into single user mode (When system is rebooting( not cold power on) press and hold command-s) this presents you with a prompt. execute "/sbin/fsck -y" then "/sbin/mount -uw /" finally run "/sbin/SystemStarter" once that is done execute "rm -rf /var/db/netinfo/local.nidb" then cd to "/private/var/db/" and remove the file ".AppleSetupDone" type reboot. the machine will then restart and run the oobe (Out Of Box Experience) this will allow you to create a new admin user and rename the machine Thank you to Bill McGonigle for this solution Steven C. Peterson wrote: The NetInfo service trick did not work passwd just sits their for about 45 seconds then drops back to shell any other ideas steven peterson Bill McGonigle wrote: > On Dec 5, 2004, at 16:15, Steven C. Peterson wrote: > > > the machine does have an os on it (os 10.3) it has an admin > > (root) password set and i do not have it, i need to rest it the > > password file is not in the normal linux/uninx/bsd place and the > > passwd command does not work proporly in single user mode > > (command -s ) > > > Ah, no CD's - I thought you meant no hard disks. > > Did you make sure NetInfo was running before changing the password? > That's most likely where the password is stored. e.g.: > > boot single user mount -uw / SystemStarter start NetInfo passwd > root > > SystemStarter should work out whatever dependencies NetInfo needs > to start for you. > > -Bill Bill McGonigle, Owner Work: 603.448.4440 BFC > Computing, LLC Home: 603.448.1668 > [EMAIL PROTECTED] Cell: 603.252.2606 > http://www.bfccomputing.com/ Text: [EMAIL PROTECTED] > AIM: wpmcgonigle Skype: bill_mcgonigle > smime.p7s Description: S/MIME Cryptographic Signature
Can only the 100Mbs part of a 10/100Mbs router fail?
I'm having a network problem that appears to be that the 10/100Mbs ports on my router are no longer working at 100Mbs, but are working at 10Mbs. Is it possible that just the 100Mbs part could fail? Here's my scenario if anyone is interested. Connected to the router are the following: Computer #1 w/ 10Mbs NIC Computer #2 w/ 10/100Mbs NIC (auto-senses to 100Mbs) 100Mbs switch Computer #1 (10Mbs) works fine, but Computer #2 (100Mbs) and everything behind the 100Mbs switch cannot get to the router. Switching ports on the router and power-cycling the router made no difference. I put computer #2 (100Mbs) behind the 100Mbs switch and it can get to all computers behind the switch, but not to the router. So this tells me that the NIC in computer #2 is okay. It also seems to imply that the 100Mbs switch is okay since computer #2 can talk to another 100Mbs computer behind the switch. If I replace the 100Mbs switch with a 10Mbs switch, then everything behind it can now get to the router, including computer #2 which auto-senses to 10mbs. But when I move computer #2 back to the router, it auto-senses to 100Mbs and cannot get to the router. So the only thing that seems to explain my problem is that the 100Mbs part of my router has gone bad, although devices connecting to it are auto-sensing to 100Mbs. Or is there something that I am overlooking, or something else I should try? Thanks, Larry ___ gnhlug-discuss mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
