April 2002 - WLUG - wlug.mailman3.com

Redundant Mail....
by wlug＠beakerware.net April 6, 2002

April 6, 2002

I couldn't think of a better way of phrasing it. I'm running Courier for incoming SMTP, POP3, IMAP, and webmail. The mail itself is stored using Maildirs in user's home directory. Short of running something like rsync between my primary box and backup, is their any good way of getting redundancy into the picture here? I already have the backup box setup as a relay in case the primary goes down, but that doesn't make the mail any closer to the user.... -mike

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RE: [Wlug] Problems dropping telnet sessions
by Simoncini, Matthew April 5, 2002

April 5, 2002

I executed the iptables -L command and got the following output: Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination I'm not really that familiar with firewalls in linux, but I would assume that iptables is running without rules? I also noticed that it's not one particular host that bumps me out of telnet, but all connections and all hosts. The network folks don't know (or maybe they do) that I'm running linux on the network, but is there a way for them to periodically reset the port I'm using in the data closet? This is really quite interesting to me, so any input is very helpful. Thanks. -----Original Message----- From: Theo Van Dinter [mailto:felicity@kluge.net] Sent: Tuesday, April 02, 2002 11:11 AM To: wlug(a)mail.wlug.org Subject: Re: [Wlug] Problems dropping telnet sessions On Tue, Apr 02, 2002 at 09:36:00AM -0500, Simoncini, Matthew wrote: > Anyone have this type of problem or more importantly, can someone point me > in the right direction? My first two thoughts are: iptables times out your connection for some reason, or the remote side has an autologout value set. Is there a firewall setup on your box? You can do "iptables -L" to find out. As for autologout, I would think this would have affected you before, but it's something to rule out anyway. What shell are you using on the remote machines? If it's a csh variant, run "echo $autologout" and see what it comes back with. If it comes back with a defined non-0 value, that is a likely cause of your problem. Run "set autologout=0" and see if that fixes your problem. -- Randomly Generated Tagline: "Note that if I can get you to \"su and say\" something just by asking, you have a very serious security problem on your system and you should look into it." (By Paul Vixie, vixie-cron 3.0.1 installation notes) _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

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RE: [Wlug] next meeting
by Keller, Tim April 5, 2002

April 5, 2002

Yup, actually I'm doing a presentation on writing a system call for the linux kernel. Speaking of which, I need to get back to working on my presentation... Tim. -----Original Message----- From: Scott Venier [mailto:scott@scooter.cx] Sent: Friday, April 05, 2002 10:23 AM To: 'wlug(a)mail.wlug.org' Subject: RE: [Wlug] next meeting Any chance we have a topic yet? Scott On Fri, 5 Apr 2002, Keller, Tim wrote: > Yup, at last check the 11th is still on! > > Tim. > > -----Original Message----- > From: Goblaskas, Dana [mailto:goblaskasd@grafton.k12.ma.us] > Sent: Friday, April 05, 2002 8:18 AM > To: wlug(a)mail.wlug.org > Subject: [Wlug] next meeting > > > Hello, > > I just wanted to check if the meeting for April 11th is > still on. I have a few students in a computer science > independent study who are interested in attending. If the > meeting is still going to take place 4/11 at 7:00pm, please > e-mail me back and let me know. > > Thank you! > > Dana > _______________________________________________ > 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 > _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

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RE: [Wlug] next meeting
by Keller, Tim April 5, 2002

April 5, 2002

Yup, at last check the 11th is still on! Tim. -----Original Message----- From: Goblaskas, Dana [mailto:goblaskasd@grafton.k12.ma.us] Sent: Friday, April 05, 2002 8:18 AM To: wlug(a)mail.wlug.org Subject: [Wlug] next meeting Hello, I just wanted to check if the meeting for April 11th is still on. I have a few students in a computer science independent study who are interested in attending. If the meeting is still going to take place 4/11 at 7:00pm, please e-mail me back and let me know. Thank you! Dana _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

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next meeting
by Goblaskas, Dana April 5, 2002

April 5, 2002

Hello, I just wanted to check if the meeting for April 11th is still on. I have a few students in a computer science independent study who are interested in attending. If the meeting is still going to take place 4/11 at 7:00pm, please e-mail me back and let me know. Thank you! Dana

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RE: [Wlug] CPU & Bad NFS Question
by Marc Hughes April 4, 2002

April 4, 2002

Also, forgot to mention it ... any ideas on how to make this not happen in the first place? -Marc -----Original Message----- From: Marc Hughes Sent: Thursday, April 04, 2002 3:11 PM To: wlug(a)wlug.org Subject: [Wlug] CPU & Bad NFS Question So yesterday I had an nfs mount go bad (thought it would be a great idea to just use nfs for a few minutes to do some file comparisons across machines) .. And since then the CPU utilizaion on the machine has been pegged out. The machine still is very responsive. When the mount went bad ... I couldn't do anything with any process that was using anything on that volume. I tried a bunch of stuff, but eventually just shut down NFS (so the processes got an I/O error and died) and did an "umount -f" on that volume. Any ideas on how to make this better? -Marc CPU0 states: 14.0% user, 85.0% system, 0.0% nice, 0.0% idle CPU1 states: 50.0% user, 50.0% system, 0.0% nice, 0.0% idle Mem: 1048088K av, 1023836K used, 24252K free, 0K shrd, 45404K buff Swap: 1052248K av, 148K used, 1052100K free 763964K cached PID USER PRI NI SIZE RSS SHARE LC STAT %CPU %MEM TIME COMMAND 20099 hughesm 16 0 940 940 696 3 R 2.6 0.0 0:00 top 20074 root 2 0 1716 1704 1188 2 S 0.3 0.1 0:00 sshd 1 root 0 0 484 484 408 3 S 0.0 0.0 2:31 init 2 root 0 0 0 0 0 2 SW 0.0 0.0 0:18 kflushd 3 root 0 0 0 0 0 2 SW 0.0 0.0 9:22 kupdate 4 root 0 0 0 0 0 2 SW 0.0 0.0 9:00 kswapd _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

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CPU & Bad NFS Question
by Marc Hughes April 4, 2002

April 4, 2002

So yesterday I had an nfs mount go bad (thought it would be a great idea to just use nfs for a few minutes to do some file comparisons across machines) .. And since then the CPU utilizaion on the machine has been pegged out. The machine still is very responsive. When the mount went bad ... I couldn't do anything with any process that was using anything on that volume. I tried a bunch of stuff, but eventually just shut down NFS (so the processes got an I/O error and died) and did an "umount -f" on that volume. Any ideas on how to make this better? -Marc CPU0 states: 14.0% user, 85.0% system, 0.0% nice, 0.0% idle CPU1 states: 50.0% user, 50.0% system, 0.0% nice, 0.0% idle Mem: 1048088K av, 1023836K used, 24252K free, 0K shrd, 45404K buff Swap: 1052248K av, 148K used, 1052100K free 763964K cached PID USER PRI NI SIZE RSS SHARE LC STAT %CPU %MEM TIME COMMAND 20099 hughesm 16 0 940 940 696 3 R 2.6 0.0 0:00 top 20074 root 2 0 1716 1704 1188 2 S 0.3 0.1 0:00 sshd 1 root 0 0 484 484 408 3 S 0.0 0.0 2:31 init 2 root 0 0 0 0 0 2 SW 0.0 0.0 0:18 kflushd 3 root 0 0 0 0 0 2 SW 0.0 0.0 9:22 kupdate 4 root 0 0 0 0 0 2 SW 0.0 0.0 9:00 kswapd

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ADV: Harvest lots of Email addresses quickly
by eyou321 April 4, 2002

April 4, 2002

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Looking for dial-up provider (Westboro area)
by Stephen C. Daukas April 3, 2002

April 3, 2002

A friend of mine has a small business in Westborough and I helped put together a web site for him. He now wants to dump AOL and get a less expensive "dial-up account". Anyone have a recommendation? He is paying ~$25/month for AOL... He doesn't want/need Charter, just wants to check mail a few times during the day. Also, anyone know if you can set-up email forwarding in AOL? Thanks! Steve

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RE: [Wlug] Looking for dial-up provider (Westboro area)
by Simoncini, Matthew April 3, 2002

April 3, 2002

www.speakeasy.net -----Original Message----- From: Stephen C. Daukas [mailto:stephen@daukas.com] Sent: Wednesday, April 03, 2002 8:42 AM To: wlug(a)wlug.org Subject: [Wlug] Looking for dial-up provider (Westboro area) A friend of mine has a small business in Westborough and I helped put together a web site for him. He now wants to dump AOL and get a less expensive "dial-up account". Anyone have a recommendation? He is paying ~$25/month for AOL... He doesn't want/need Charter, just wants to check mail a few times during the day. Also, anyone know if you can set-up email forwarding in AOL? Thanks! Steve _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

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