April 2009 - WLUG - wlug.mailman3.com

Re: [Wlug] odd entry in /etc/passwd

by Theo Van Dinter

LDAP doesn't let your fingers do the walking... On Tue, Apr 28, 2009 at 9:57 PM, J.R. Mauro <jrm8005(a)gmail.com> wrote: > On Tue, Apr 28, 2009 at 9:48 PM, Frank Sweetser <fs(a)wpi.edu> wrote: >> Eric Martin wrote: >>> So I just found an odd entry in /etc/passwd on one of my servers: >>> >>> +:::::: >>> >>> Of course I'm not running tripwire on it so I can't be assured of the >>> last time I edited the file / did anything to edit it. etc/shadow >>> doesn't have the entry but shadow is only checked if the second field is >>> x, right? >>> >>> I'm running Suse and I've been using yast lately, could that have >>> anything to do with it? I hope it does as I really hope I don't have to >>> run a full audit on the box. >> >> Looks like it's part of NIS/NIS+ configuration: > > people still use NIS? > >> >> http://www.cyberciti.biz/faq/plus-minus-sign-in-unix-linux-passwd-file/ >> >> -- >> Frank Sweetser fs at wpi.edu | For every problem, there is a solution that >> WPI Senior Network Engineer | is simple, elegant, and wrong. - HL Mencken >> GPG fingerprint = 6174 1257 129E 0D21 D8D4 E8A3 8E39 29E3 E2E8 8CEC >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug >> > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug >

April 29, 2009

Re: [Wlug] odd entry in /etc/passwd

by Eric Martin

Frank Sweetser wrote: > Eric Martin wrote: > >> So I just found an odd entry in /etc/passwd on one of my servers: >> >> +:::::: >> >> Of course I'm not running tripwire on it so I can't be assured of the >> last time I edited the file / did anything to edit it. etc/shadow >> doesn't have the entry but shadow is only checked if the second field is >> x, right? >> >> I'm running Suse and I've been using yast lately, could that have >> anything to do with it? I hope it does as I really hope I don't have to >> run a full audit on the box. >> > > Looks like it's part of NIS/NIS+ configuration: > > http://www.cyberciti.biz/faq/plus-minus-sign-in-unix-linux-passwd-file/ > > Thanks Frank! I googled +:::::: and nothing came back. I was just about to go hit my Hacking Exposed books as I though I remembered something from there. NIS was off in Yast, but it's good to know that I'm (probably) not hacked.

April 29, 2009

Re: [Wlug] odd entry in /etc/passwd

by J.R. Mauro

On Tue, Apr 28, 2009 at 9:48 PM, Frank Sweetser <fs(a)wpi.edu> wrote: > Eric Martin wrote: >> So I just found an odd entry in /etc/passwd on one of my servers: >> >> +:::::: >> >> Of course I'm not running tripwire on it so I can't be assured of the >> last time I edited the file / did anything to edit it. etc/shadow >> doesn't have the entry but shadow is only checked if the second field is >> x, right? >> >> I'm running Suse and I've been using yast lately, could that have >> anything to do with it? I hope it does as I really hope I don't have to >> run a full audit on the box. > > Looks like it's part of NIS/NIS+ configuration: people still use NIS? > > http://www.cyberciti.biz/faq/plus-minus-sign-in-unix-linux-passwd-file/ > > -- > Frank Sweetser fs at wpi.edu | For every problem, there is a solution that > WPI Senior Network Engineer | is simple, elegant, and wrong. - HL Mencken > GPG fingerprint = 6174 1257 129E 0D21 D8D4 E8A3 8E39 29E3 E2E8 8CEC > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug >

April 29, 2009

Re: [Wlug] odd entry in /etc/passwd

by Frank Sweetser

Eric Martin wrote: > So I just found an odd entry in /etc/passwd on one of my servers: > > +:::::: > > Of course I'm not running tripwire on it so I can't be assured of the > last time I edited the file / did anything to edit it. etc/shadow > doesn't have the entry but shadow is only checked if the second field is > x, right? > > I'm running Suse and I've been using yast lately, could that have > anything to do with it? I hope it does as I really hope I don't have to > run a full audit on the box. Looks like it's part of NIS/NIS+ configuration: http://www.cyberciti.biz/faq/plus-minus-sign-in-unix-linux-passwd-file/ -- Frank Sweetser fs at wpi.edu | For every problem, there is a solution that WPI Senior Network Engineer | is simple, elegant, and wrong. - HL Mencken GPG fingerprint = 6174 1257 129E 0D21 D8D4 E8A3 8E39 29E3 E2E8 8CEC

April 29, 2009

odd entry in /etc/passwd

by Eric Martin

So I just found an odd entry in /etc/passwd on one of my servers: +:::::: Of course I'm not running tripwire on it so I can't be assured of the last time I edited the file / did anything to edit it. etc/shadow doesn't have the entry but shadow is only checked if the second field is x, right? I'm running Suse and I've been using yast lately, could that have anything to do with it? I hope it does as I really hope I don't have to run a full audit on the box. tia -- Eric Martin

April 29, 2009

Re: [Wlug] Keyboard and mouse repeatedly disconnect/reconnect

by E Johnson

My original question had to do with USB disconnects/reconnects. I have this "issue" with wired mouse and wired keyboard. Sometimes, after repeated messages all the same (many per minute over hours), this appears to cause the keyboard and/or mouse to lock up, not accepting input. At that point the PC requires reboot. Same messages in /var/log/messages using: -- different types (brands) of wired mouse and/or wired keyboard, -- different distros of Linux (various Ubuntu, various Debian), -- different kernels, -- four different PCs with 3 different mobos, each with their own set of peripherals. Had this problem going on two years now. Liz J 2009/4/28 Richard Klein <richspk(a)gmail.com>: > On Tue, Apr 28, 2009 at 1:19 PM, Lee Keyser-Allen <frozbiz(a)gmail.com> wrote: >> FWIW, I don't believe that this (bizzare mouse behavior) is a Linux issue. >> >> I have a wireless logitech keyboard/mouse at work hooked up to a thinkpad >> running XP, and find that sometimes the mouse goes haywire. It seems to be >> due to wireless interference (there's a crapload of that in my office). > > Have you tried relocating the receiver? > > -- > Rich > Sent from Framingham, Massachusetts, United States > _______________________________________________ > Wlug mailing list

April 28, 2009

Re: [Wlug] Keyboard and mouse repeatedly disconnect/reconnect

by Lee Keyser-Allen

It's happened across office moves (in the same building), so I'm less inclined to believe that it's the location of the receiver specifically. Since my company creates wireless devices, we've just got a ton of interference all the time (I'd estimate that at any given point in time we have around 100 APs talking in a 100 yard radius. I've got four in my office, not to mention the four stations). Also it's fine most of the time ... when I replace the batteries, it chooses a new channel often, and is borked until I get it to move to a clear channel, and then it works fine for another month or two until the batteries die. Funny enough ... the keyboard just works ... I've not changed the batteries in two years, and never had interference problems ... hooray for super low-bandwidth applications :) Cheers, Lee On Tue, Apr 28, 2009 at 1:31 PM, Richard Klein <richspk(a)gmail.com> wrote: > On Tue, Apr 28, 2009 at 1:19 PM, Lee Keyser-Allen <frozbiz(a)gmail.com> > wrote: > > FWIW, I don't believe that this (bizzare mouse behavior) is a Linux > issue. > > > > I have a wireless logitech keyboard/mouse at work hooked up to a thinkpad > > running XP, and find that sometimes the mouse goes haywire. It seems to > be > > due to wireless interference (there's a crapload of that in my office). > > Have you tried relocating the receiver? > > -- > Rich > Sent from Framingham, Massachusetts, United States > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > -- Lee Keyser-Allen (lkeyser(a)alum.wpi.edu)

April 28, 2009

Re: [Wlug] Keyboard and mouse repeatedly disconnect/reconnect

by Richard Klein

On Tue, Apr 28, 2009 at 1:19 PM, Lee Keyser-Allen <frozbiz(a)gmail.com> wrote: > FWIW, I don't believe that this (bizzare mouse behavior) is a Linux issue. > > I have a wireless logitech keyboard/mouse at work hooked up to a thinkpad > running XP, and find that sometimes the mouse goes haywire. It seems to be > due to wireless interference (there's a crapload of that in my office). Have you tried relocating the receiver? -- Rich Sent from Framingham, Massachusetts, United States

April 28, 2009

Re: [Wlug] Keyboard and mouse repeatedly disconnect/reconnect

by J.R. Mauro

On Tue, Apr 28, 2009 at 1:19 PM, Lee Keyser-Allen <frozbiz(a)gmail.com> wrote: > FWIW, I don't believe that this (bizzare mouse behavior) is a Linux issue. > > I have a wireless logitech keyboard/mouse at work hooked up to a thinkpad > running XP, and find that sometimes the mouse goes haywire. It seems to be > due to wireless interference (there's a crapload of that in my office). > > I find that if it's particularly bad, I can force it to swtich channels and > reassociate by hitting the connect button on the receiver followed by the > connect button on the mouse (order is important, as just hitting the connect > button on the mouse will appear to reassociate, but will not change the > channel). > > Also I've noticed that these problems tend to be more likely to occur/are > worse when the mouse is running low on battery (which it eats through like > candy, but that's another gripe). IIRC this is an issue with wired devices. It may not be a kernel issue at all. Sometimes, hardware is just flakey. The real test would be to use a different brand of mouse for a while and see if the errors stop. > > Hope that helps, > > Lee > > On Sat, Apr 25, 2009 at 11:11 PM, Jason Couture <plaguethenet(a)gmail.com> > wrote: >> >> Ive noticed that logitech mice seem to have strange issues with linux, >> Example i have a wireless logitech USB Mouse and keyboard, And every >> so often the mouse freaks out and jumps all over the screen clicks on >> things while it does and then returns to normal. Next time it happens >> ill post a copy of /var/log/messages pertaining to the issue, Perhaps >> your issue is related? >> >> On Sat, Apr 25, 2009 at 10:28 PM, E Johnson <iris.gates(a)gmail.com> wrote: >> > Okay. great. Will try the 28 kernel and check back in next week with >> > results. >> > >> > Thanks very much, >> > Liz J >> > >> > 2009/4/25 J. R. Mauro <jrm8005(a)gmail.com>: >> >> Sorry, didn't see you already had given version/distro info. See if >> >> you can upgrade to a more recent kernel; tons of issues with the input >> >> layer were fixed between .24/.26 and now. Other advice: ensure that >> >> evdev is the driver being used. Other than that, it could be hardware >> >> issues. >> >> >> >> P.S. I would recommend .28 as I don't think .29 is incredibly stable. >> > _______________________________________________ >> > Wlug mailing list >> > Wlug(a)mail.wlug.org >> > http://mail.wlug.org/mailman/listinfo/wlug >> > >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug > > > > -- > Lee Keyser-Allen > (lkeyser(a)alum.wpi.edu) > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > >

April 28, 2009

Re: [Wlug] Keyboard and mouse repeatedly disconnect/reconnect

by Lee Keyser-Allen

FWIW, I don't believe that this (bizzare mouse behavior) is a Linux issue. I have a wireless logitech keyboard/mouse at work hooked up to a thinkpad running XP, and find that sometimes the mouse goes haywire. It seems to be due to wireless interference (there's a crapload of that in my office). I find that if it's particularly bad, I can force it to swtich channels and reassociate by hitting the connect button on the receiver followed by the connect button on the mouse (order is important, as just hitting the connect button on the mouse will appear to reassociate, but will not change the channel). Also I've noticed that these problems tend to be more likely to occur/are worse when the mouse is running low on battery (which it eats through like candy, but that's another gripe). Hope that helps, Lee On Sat, Apr 25, 2009 at 11:11 PM, Jason Couture <plaguethenet(a)gmail.com>wrote: > Ive noticed that logitech mice seem to have strange issues with linux, > Example i have a wireless logitech USB Mouse and keyboard, And every > so often the mouse freaks out and jumps all over the screen clicks on > things while it does and then returns to normal. Next time it happens > ill post a copy of /var/log/messages pertaining to the issue, Perhaps > your issue is related? > > On Sat, Apr 25, 2009 at 10:28 PM, E Johnson <iris.gates(a)gmail.com> wrote: > > Okay. great. Will try the 28 kernel and check back in next week with > results. > > > > Thanks very much, > > Liz J > > > > 2009/4/25 J. R. Mauro <jrm8005(a)gmail.com>: > >> Sorry, didn't see you already had given version/distro info. See if > >> you can upgrade to a more recent kernel; tons of issues with the input > >> layer were fixed between .24/.26 and now. Other advice: ensure that > >> evdev is the driver being used. Other than that, it could be hardware > >> issues. > >> > >> P.S. I would recommend .28 as I don't think .29 is incredibly stable. > > _______________________________________________ > > Wlug mailing list > > Wlug(a)mail.wlug.org > > http://mail.wlug.org/mailman/listinfo/wlug > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > -- Lee Keyser-Allen (lkeyser(a)alum.wpi.edu)

April 28, 2009