[Nagiosplug-devel] [ nagiosplug-Bugs-2989193 ] check_smtp HELO bad default and -F missing from --help
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Tue Nov 30 15:42:21 CET 2010
Bugs item #2989193, was opened at 2010-04-19 09:22
Message generated for change (Comment added) made by hweiss
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Category: None
Group: v1.4.14
>Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Jan Wagner (cyco_dd)
Assigned to: Nobody/Anonymous (nobody)
Summary: check_smtp HELO bad default and -F missing from --help
Initial Comment:
The following Bugreport we got against our debian package:
Hi,
I noticed our check_smtp was sending garbage in HELO,
% /usr/lib/nagios/plugins/check_smtp -v 127.0.0.1 | head -1
HELOCMD: HELO shortmachinename
When is it ever a good idea to send the unqualified hostname as HELO?
Doing that to an actual real-world SMTP server just makes Nagios look like
a spammer :)
But regardless of the crap default, I went to fix that in the local config,
but didn't find any way. By reading the source I discovered that it was
actually possible by using -F, but:
% /usr/lib/nagios/plugins/check_smtp --help | grep -- -F
%
You can track the bugreport via
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578333
Thanks and kind regards, Jan.
----------------------------------------------------------------------
>Comment By: Holger Weiss (hweiss)
Date: 2010-11-30 15:42
Message:
The -F option is now documented in the --help output. Thanks!
But we won't change the default behaviour. The only reasonable way to get
the FQDN would be to issue a DNS query asking for the PTR record of some IP
address (given that your system might have multiple addresses: which one?).
However, the standard says that the server MUST accept any garbage. So,
as far as I'm concerned, it's quite reasonable for a Nagios plugin to use
some dummy value and let the users who care configure the FQDN manually.
----------------------------------------------------------------------
Comment By: Jan Wagner (cyco_dd)
Date: 2010-04-19 11:07
Message:
Our actual patch for the help output can be found at
http://svn.debian.org/viewsvn/pkg-nagios/nagios-plugins/trunk/debian/patches/03_check_smtp_help.dpatch
----------------------------------------------------------------------
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