Discuss September 2008

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264 participants
315 discussions

Logwatch / spamassassin
by Bob Hoffman 11 Sep '08

11 Sep '08

Hi all, Well it took a while for me to figure it out, but apparently my logwatch no longer can be mailed locally on my computer as I believe spamassassin is eating it. I can send it out to an email address outside my server though. So spamassassin is only checking incoming I guess. My question is....how do I...or should I.... Make all local mail go straight to the boxes and skip spamasassin entirely.. Or.. Whitelist logwatch. Apparently, I am guessing, all those nifty log reports are so full of blacklisted urls and ips...well, you get the picure. Best ways to make this work so I can get it delivered to root again? Thanks

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RE: Logwatch / spamassassin
by Bob Hoffman 11 Sep '08

11 Sep '08

So.. To answer my own question... so I edited the file /etc/mail/spamassassin/local.cf whitelist_from logwatch(a)localhost.localdomain Where localhost.localdomain is your hostname.servername And it worked. However, I am concerned about spoofing. I would think that mail agent and spamassassin would have an 'okay, it's a local user' thing going on. They do not. On the internet there are 1000s of posts like mine, asking questions about this and getting no answers. I hope this helps. Centos 5.2... -----Original Message----- From: Bob Hoffman [mailto:bob@bobhoffman.com] Sent: Thursday, September 11, 2008 4:54 AM To: 'centos(a)centos.org' Subject: Logwatch / spamassassin Hi all, Well it took a while for me to figure it out, but apparently my logwatch no longer can be mailed locally on my computer as I believe spamassassin is eating it. I can send it out to an email address outside my server though. So spamassassin is only checking incoming I guess. My question is....how do I...or should I.... Make all local mail go straight to the boxes and skip spamasassin entirely.. Or.. Whitelist logwatch. Apparently, I am guessing, all those nifty log reports are so full of blacklisted urls and ips...well, you get the picure. Best ways to make this work so I can get it delivered to root again? Thanks

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RE: Logwatch / spamassassin
by Bob Hoffman 11 Sep '08

11 Sep '08

Ned, Thanks for the letters. Yes, I added the whitelist, but think that is not right either. No matter what I add in there, it will allow someone to use it and come in. The postmaster not getting tagged is just as scary actually. The weird part is the mail will go to another server via smtp and not be tagged as SPAM. How strange is that. I can only assume I should be changing something in the logwatch file to make it not be from 'logwatch' but to instead be 'root' or some other local user. Since logwatch has no local user in my mail setups...maybe that is the problem. So it might be that matter that makes it get killed by procmail or by spamassassin. Strange. But a very obvious problem across the net. I will work on this more tonight and see if I can get it to run better without whitelisting.

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RE: [CentOS] /etc/rc5.d
by Bowie Bailey 11 Sep '08

11 Sep '08

tony.chamberlain(a)lemko.com wrote: > > start() { > date >> /root/joe.log > /usr/bin/joevpn start & > RES=$? > return $RES > } > > This all works and everything. I am just curious as to why when I do > a ps I get this: > /bin/bash /etc/rc5.d/S99runjoevpn > > Shouldn't that init script terminate since I have an "&" when I do the > start() function above? No other rc5 stuff (i.e. tomcat for instance) > shows up in the ps, though tomcat is running, it started up and > returned. Is this OK or am I missing something? The "&" doesn't terminate anything. It simply moves the process to the background and leaves it attached to the parent process. The parent process cannot exit until all of its child processes exit. What you are looking for is this: start() { date >> /root/joe.log nohup /usr/bin/joevpn start & RES=$? return $RES } The "nohup" command will detach the joevpn process from the parent and allow the parent process to exit. -- Bowie

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RE: [CentOS] RE: Logwatch / spamassassin
by Bowie Bailey 11 Sep '08

11 Sep '08

Bob Hoffman wrote: > So.. > > To answer my own question... > > so I edited the file /etc/mail/spamassassin/local.cf > > whitelist_from logwatch(a)localhost.localdomain > > Where localhost.localdomain is your hostname.servername > > And it worked. > > However, I am concerned about spoofing. I would think that mail agent > and spamassassin would have an 'okay, it's a local user' thing going > on. Generally, using 'whitelist_from' is a bad idea due to spoofing. The address you are using will probably not cause too many problems, but you should still fix it if possible. Use 'whitelist_from_rcvd' instead. This will whitelist the address only if the mail comes from a specified domain. Try this (untested): whitelist_from_rcvd logwatch(a)localhost.localdomain localhost.localdomain Note that this will require your DNS server to resolve localhost.localdomain (forward and reverse). Another option is to configure your mail server to bypass SA entirely for local mail. -- Bowie

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/etc/rc5.d
by tony.chamberlain＠lemko.com 11 Sep '08

11 Sep '08

I have a shell script, /usr/bin/joevpn, which does a quick VPN connect. Basically (HOST and DOFIL are defined above and are correct. I just did not list them here) case "$1" in start) date > $DOFIL while [ -f $DOFIL ] do echo y | /usr/local/bin/vpnclient connect $HOST sleep 10 done ;; # Reconnects in case of disconnect (in while loop) This works. And in /etc/init.d I have a runjoevpn (which linked to /etc/rc5.d/S99runjoevpn). It works like the others. Below, $1 is checked (not shown here for brevity) and if it is "start" then start below is called: start() { date >> /root/joe.log /usr/bin/joevpn start & RES=$? return $RES } This all works and everything. I am just curious as to why when I do a ps I get this: /bin/bash /etc/rc5.d/S99runjoevpn Shouldn't that init script terminate since I have an "&" when I do the start() function above? No other rc5 stuff (i.e. tomcat for instance) shows up in the ps, though tomcat is running, it started up and returned. Is this OK or am I missing something?

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Job Scheduling suggestions
by Mag Gam 11 Sep '08

11 Sep '08

At my university we have 50 computers in the lab. We would like to use a scheduler to schedule our fluid models, and I was wondering what is a good suggestion? TIA

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Centos 4.7 delay more than mirror issue?
by Josh Donovan 11 Sep '08

11 Sep '08

Hi folks, Normally people ask "when is CentOS 4.7 coming" and they are told "when it is ready". Dag posted on his blog about it going to testing in July while it was supposed to be syncing to the mirrors on Sept 5/6th according to Karanbir. Is there something going on behind the scenes? I have not seen Johnny Hughes or even Dag posting on this list for some time. CentOS has gone for some time while other rebuilds folded so I wouldn't like it to follow the same way. Thanks, Josh

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PCI SATA Controller Recommendations?
by Tim Nelson 10 Sep '08

10 Sep '08

Hello fellow listers... I'd like to get some recommendations on a good SATA controller for use with CentOS 5.x. It should be PCI, bootable, have 4 SATA ports, have native support (no crap proprietary or manually compiled drivers), and possibly hot swap support. Any ideas? There are plenty of PCI-X and PCIe controllers that I think would work but the use for this card is in a smaller 1U server that is quite cramped, hence the query for a standard PCI card. All suggestions and comments welcome. Thank you! Tim Nelson Systems/Network Engineer Rockbochs Inc. (218)727-4332 x105

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Centos 5 Virtualization
by lingu 10 Sep '08

10 Sep '08

Hello list, I am very much new to Virtualization.But i want to study and test Virtualization.Can any one suggest me the web links from where i can start. I want to learn from basic to advanced concepts of VT. Thanks in advance for your reply

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Discuss September 2008