Problems with Nagios config

[Potter, G M (Greg)]

You can use mailx with the -r option.  For example:
mailx -r gpotter at marathonoil.com $EMAILCONTACT$

will make the from address be gpotter at marathonoil.com instead of nagios at myhost.mydom.com

Greg

> -----Original Message-----
> From: Carroll, Jim P [Contractor] [mailto:jcarro10 at sprintspectrum.com]
> Sent: Thursday, February 27, 2003 12:15 PM
> To: Nagios users list
> Subject: RE: [Nagios-users] Problems with Nagios config
> 
> 
> Rasmus Plewe wrote:
> > 
> > On Thu, Feb 27, 2003 at 12:04:50AM -0500, Kevin Gibbons wrote:
> > > 
> > > How can I setup Nagios email alerts to have a custom FROM 
> > address?  I'm
> > > guessing it's in the misccommands.cfg file in the 
> > "'notify-by-email' command
> > > definition".  By default I see that all email alerts are 
> > sent originating
> > > from nagios at hostname  But I would like to change this to my 
> > own personal
> > > email address, so my ISP could simply reply back.
> > 
> > The fastest, perhapt not most elegant solution:
> > echo "your at email.address" > ~nagios/.forward
> > That would forward all mail for nagios at hostname to your IP address. 
> 
> Good point.  I was thinking that he wanted it to actually 
> appear as coming
> from him, but I suppose that's not really a necessity.
> 
> > If you really want your email address in the From: header, there are
> > lots of possibilities and even more possible problems. You 
> could use a
> > different (non-interactive) MUA (I'd take mutt, myself) in
> > misccommands.cfg instead of /usr/bin/mail, which allows you some
> > "forging" of the sender, but you could then still run into problems
> > with the MTA on your machine. 
> 
> Interesting approach.  I can see possibly injecting a crafted 
> Reply-To:
> header; I'm not sure that sendmail would permit a forged 
> From: address,
> unless running as root.
> 
> Having said that, another option might be procmail on the 
> Nagios host.  Have
> it replace 'nagios at kgibbons.com' with 'kevin at kgibbons.com' on 
> the From:
> line.
> 
> It's been a while for me, but if he were to replace sendmail 
> with postfix, I
> think doing this kind of crafting would be quite simple.
> 
> jc
> 
> 
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