March 2002 - WLUG - wlug.mailman3.com

Question

by Pierce C. Barnard

Hi, I recently purchased SuSE V7.3 and when I shut it down, it hangs while shutting down all of the system processes. How can I fix this problem with the shut down proceedure?

March 11, 2002

FS: DSL Modem and Stereo Stuff

by Beaty McCloud

Hi, I know that this is not a forsale list, but I am having trouble posting to wpi.forsale from off-campus. If someone on campus could please post the following it would be greatly appreciated. TIA, and sorry for any inconvenience. -Beaty --------------------------- To see the listing, check out: http://cgi6.ebay.com/aw-cgi/eBayISAPI.dll?MfcISAPICommand=ViewListedItems&u… If there are any questions then let me know. I may be able to deliver to the school depending on my schedule this upcoming week. Thanx!

March 9, 2002

Re: [Wlug] Chart generation tools

by Mike Peckar

If yer looking for something that'll aggregate and age out the data, and produce daily, weekly, monthly and yearly graphs, check MRTG ----- Original Message ----- From: "John Stoffel" <stoffel(a)lucent.com> To: <wlug(a)mail.wlug.org> Sent: Friday, March 08, 2002 5:29 PM Subject: [Wlug] Chart generation tools Guys, Does anyone have any recommendations for data plotting or charting tools under linux/solaris? I'm aware of gnuplot, xmgr (ACE/gr), grace (ACE/gr descendant) but none of them is really what I want. I'm trying to take a bunch of data from my backups and graph the output nicely. I'd like to have both: - stacked plots (show the totals, with breakdowns by groups). - pie charts for individual days - line charts for trend analysis And of course all of this should be easy to do from the Unix command line and/or control/data files. I currently have a script which uses gnuplot to graph the data, but it's not the nicest. I'm looking into using 'grace', but it's not well documented and it's really pushed more to scientific visualization. I'll try to put what I have up on the web at some point, so you can see what I'm trying to do... but if you've ever used Legato Networker, I've got a tool called 'nss' (http://jfs.ecotarium.org/sources/nss) which generates reports on backups. I'm now trying to take the logged data from that and provide some nice trend analysis graphs as well. Thanks, John John Stoffel - Senior Unix Systems Administrator - Lucent Technologies stoffel(a)lucent.com - http://www.lucent.com - 978-399-0479 _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

March 9, 2002

Re: [Wlug] itch to scratch...

by Michael Frysinger

heh i encounter the same problem all the time i mount my mp3s via samba and then my windows box reboots. samba freaks the mount and processes get fucked in the ass. here is how i solve it ... drop all packets to your windows machine long enough to kill all the offending processes and umount the drive. iptables -I INPUT 1 -d WINDOWS -j DROP or if thats a prob (like you're ssh-ing from your windows machine :D), add in -p TCP --dport 139 -mike ----- Original Message ----- From: "Keller, Tim" <Tim.Keller(a)stratus.com> To: <wlug(a)wlug.org> Sent: Friday, March 08, 2002 09:38 Subject: [Wlug] itch to scratch... > I'd like to figure out a way to "assassinate" processes that get stuck in > the "waiting IO" state when I know there's no way they'll ever come out of > that state. > > I just had to reboot my linux workstation to resolve such an issue. I had > an file system containing mp3's mounted via smbfs. Unknown to me, this > connection had become stale, so when I started up xmms, it hung and > immediately went into the dreaded "waiting IO" state, while holding onto my > sound hardware. I did a df and had that stuck as well, along with the bash > shell I spawned it from. > > I think I'd like to write a "SIGMURDER" signal that would tell the kernel to > just through its tables and forcibly unallocate all the resources a > particular process is holding, close all its handles, etc. > > So before I even contemplate this endeavor, is their away to already do > this? > > Thanks, > Tim. > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug >

March 9, 2002

Re: [Wlug] Chart generation tools

by Mike Lundy

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Friday 08 March 2002 14:29, you wrote: > Does anyone have any recommendations for data plotting or charting > tools under linux/solaris? I'm aware of gnuplot, xmgr (ACE/gr), My personal favorite is the perl module GD::Graph- if you know perl, it'll probably do everything you need. you can see a graph i made with it at http://mike.vinge.mine.nu/spamlist.png. - -- To smash a single atom, all mankind was intent. Now any day the atom may return the compliment. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iEYEARECAAYFAjyJTSIACgkQqQ38/GgypQZ7lwCfZ6yJjcIyAMMP+9XZ1TGbvlsV 5/IAni+bY+7YZypb3+Z22FzsGVo9QzFl =8JUA -----END PGP SIGNATURE-----

March 8, 2002

Chart generation tools

by John Stoffel

Guys, Does anyone have any recommendations for data plotting or charting tools under linux/solaris? I'm aware of gnuplot, xmgr (ACE/gr), grace (ACE/gr descendant) but none of them is really what I want. I'm trying to take a bunch of data from my backups and graph the output nicely. I'd like to have both: - stacked plots (show the totals, with breakdowns by groups). - pie charts for individual days - line charts for trend analysis And of course all of this should be easy to do from the Unix command line and/or control/data files. I currently have a script which uses gnuplot to graph the data, but it's not the nicest. I'm looking into using 'grace', but it's not well documented and it's really pushed more to scientific visualization. I'll try to put what I have up on the web at some point, so you can see what I'm trying to do... but if you've ever used Legato Networker, I've got a tool called 'nss' (http://jfs.ecotarium.org/sources/nss) which generates reports on backups. I'm now trying to take the logged data from that and provide some nice trend analysis graphs as well. Thanks, John John Stoffel - Senior Unix Systems Administrator - Lucent Technologies stoffel(a)lucent.com - http://www.lucent.com - 978-399-0479

March 8, 2002

RE: [Wlug] itch to scratch...

by Evans, Robert

Potential difficulties with this idea: - There may be insufficient information about state of the process for the kernel to free up some resources. It might require code in drivers to assist. - Locks or mutexes held by the process should not be freed unless the resource the lock is protecting is in a consistent state. This gets very application specific. Robert N. Evans Software Engineer S T R A T U S T E C H N O L O G I E S 111 Powdermill Road, Maynard, MA 01754-3409 U.S.A. * Tel. 978-461-7680 / * Fax. 978-461-3610 robert.evans(a)stratus.com Amateur Radio Call: N1BE -----Original Message----- From: Keller, Tim [mailto:Tim.Keller@stratus.com] Sent: Friday, March 08, 2002 9:39 AM To: 'wlug(a)wlug.org' Subject: [Wlug] itch to scratch... I'd like to figure out a way to "assassinate" processes that get stuck in the "waiting IO" state when I know there's no way they'll ever come out of that state. I just had to reboot my linux workstation to resolve such an issue. I had an file system containing mp3's mounted via smbfs. Unknown to me, this connection had become stale, so when I started up xmms, it hung and immediately went into the dreaded "waiting IO" state, while holding onto my sound hardware. I did a df and had that stuck as well, along with the bash shell I spawned it from. I think I'd like to write a "SIGMURDER" signal that would tell the kernel to just through its tables and forcibly unallocate all the resources a particular process is holding, close all its handles, etc. So before I even contemplate this endeavor, is their away to already do this? Thanks, Tim. _______________________________________________

March 8, 2002

itch to scratch...

by Keller, Tim

I'd like to figure out a way to "assassinate" processes that get stuck in the "waiting IO" state when I know there's no way they'll ever come out of that state. I just had to reboot my linux workstation to resolve such an issue. I had an file system containing mp3's mounted via smbfs. Unknown to me, this connection had become stale, so when I started up xmms, it hung and immediately went into the dreaded "waiting IO" state, while holding onto my sound hardware. I did a df and had that stuck as well, along with the bash shell I spawned it from. I think I'd like to write a "SIGMURDER" signal that would tell the kernel to just through its tables and forcibly unallocate all the resources a particular process is holding, close all its handles, etc. So before I even contemplate this endeavor, is their away to already do this? Thanks, Tim.

March 8, 2002

Re: [Wlug] can't connect with ftp, says connection time out

by Peter Gutowski

Bob, You haven't given us much to go on, but here's a shot: I'm assuming that this is the first time you've tried this. If so then you might not have configured inetd or xinetd to start the the ftp service when it detects an incoming ftp connection. My system ( Redhat 7.1 Intel) uses xinetd and the config files are in the directory /etc/xinetd; there's one for each service. Try to identify the file that corresponds to your ftp service. Again mine is named 'wu-ftpd' and it's a short file. Open the file with a text editor and look for a line that says 'disable = yes' and change the yes to a no, or delete the line completely. This done, you'll need to restart xinetd (or inetd). On my system I'd enter the command /etc/rc.d/init.d/xinetd restart to accomplish this. Perhaps that'll get you over the hump on this one. But there are other possibilities as well. If this doesn't work, please take a look at your log files, they can provide you (and us!) with valuable clues as to the nature of the problem. It's not uncommon for posters to include short, pertinent portions of a log file for us to see. Another strong possibility is that a packet filter is coming into play and that you incoming ftp request is just being ignored. That's handled by 'ipchains' or 'iptables' and is typically setup at startup time. It that appears to be the case, read the init.d script and see where it's looking for its configuration file, then check *that* file for any special handling of 'ftp' ports 21 and 20. The strongest likelyhood is that both of the above things need to be done. But, be warned about FTP in general: unless you're using it off the internet, historically it's been the source of many breakins and cannot be considered secure by nomal users as login and password are passed in cleartext over the internet. Consider using ssh and scp (components of OpenSSH) instead -- there's client software available for non-linux OSs too. -Peter On 3/7/2002 11:23 PM, babine <babinefamily(a)charter.net> wrote: > >When I try to ftp to my server, i get a connection time out. Why >is it happening? > > Bob

March 8, 2002

can't connect with ftp, says connection time out

by babine

When I try to ftp to my server, i get a connection time out. Why is it happening? Bob

March 8, 2002