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Old 11-27-2013, 05:41 PM   #1
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nagios3 core on ubuntu

I have configured a nagios3 core server on Ubuntu. have it running, monitoring and sending alerts correctly. I am using Spiceworks as my helpdesk software. when my nagios server sends an alert about a device problem it has detected, it sends the email to my and Spiceworks sees it just fine and the helpdesk ticket is created. here is the problem. the email is coming from nagios@localhost and Spiceworks sends a reply with helpdesk ticket information to this address. this is not a valid email address in my domain so it bounces. how do I set the reply to email address in nagios on the Ubuntu server. I want the reply email address to be another admin email address I use to capture these kind of emails. nothing on nagios seems to address this issue. is this a Linux setting? any help would be appreciated.

Last edited by tvball; 11-27-2013 at 05:42 PM.
Old 11-27-2013, 11:48 PM   #2
Registered: Jul 2008
Location: Bangalore, India
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The configuration file we have in our installation of Nagios3 is /etc/nagios3/conf.d/contacts_nagios2.cfg. The email parameter in this file is responsible for email alerts.
Check this info and let us know if this solves the purpose.
Old 11-28-2013, 09:46 AM   #3
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I figured it out. Indeed the contacts config in the conf.d folder is for configuring the to email address. All that is working. However sendmail sends that email with the nagios@domain as the reply address. I went into the commands.cfg file in /etc/nagios3 and had to add this to end of line for the printf commands; -- -f emailadress
turns out this is a sendmail option that can be used to specify the reply to email address. the -- specifies additional sendmail options and from what I can find, the -f stands for from email address, not sure what the -f really stands for, maybe one of our Linux Guru's on here knows the correct term. What I also found is that nagios does not seem to have an instant check feature. Once you make the change, restart nagios3 daemon, you have to give nagios time process the alerts and send the emails. now it comes from nagios@domain, but the reply email address is my normal admin email address I use to capture these kind of emails.

Thanks for the post!
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