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Old 02-21-2013, 05:39 AM   #1
ctav01
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Registered: Aug 2003
Location: Pleasanton, CA
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System to system emails with port 25 blocked


I work behind a firewall with port 25 blocked. I've got several Linux workstations/servers set up and I'm trying to get more administratively conscious so how do I set up email notifications from my various machines without using standard email (since no port 25). Maybe using a script to copy log files to a central computer via SSH.


Or am I thinking about this all wrong and should I start looking at solutions like Nagios? It's only a handful of computers so would Nagios be overkill?

Thanks in advance.
 
Old 02-21-2013, 06:00 AM   #2
chrism01
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If you are one side of the f/w and the systems on the other side, Nagios may be a good idea, plus its already got modules for monitoring just about anything, which saves you writing your own.
Note that normally Nagios uses snmpd which is on port 161; is that port open?
Alternately, you can use the check_by_ssh Nagios module.
 
Old 02-21-2013, 06:19 AM   #3
ctav01
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No, me and the systems are on the same side of the firewall. I wouldn't mind being able to pick up status remotely but I'm trying to get just the internal side working now. I'm not able to admin the firewall at all but I'm pretty sure 80 and 443 are the only ports open. Still think Nagios is the way to go?
 
Old 02-21-2013, 06:23 AM   #4
chrism01
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If you're on the same side as the systems, why do you care if 25 is blocked on the f/w?
The systems can communicate direct to each other.
Unless I'm missing something??

In any case, Nagios can monitor and send you email alerts if measurements are exceeded; that's the default setup pretty much ie you get a web page that shows current status of each service monitored and emails if limit levels exceeded.

Last edited by chrism01; 02-21-2013 at 06:26 AM.
 
  


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