Jul 092013
 

I recently upgraded a jail server from FreeBSD 8.2 to 8.4, and part of that process involved recompiling all of the applications. Along the way, nrpe on one jail stopped working. Nagios was reporting:

CHECK_NRPE: Socket timeout after 10 seconds. 

Trying from the command line gave:

$ /usr/local/libexec/nagios/check_nrpe2 -H -H dbclone.example.org -c check_pgsql -t 1
CHECK_NRPE: Socket timeout after 1 seconds.

Other jails worked just fine:

$ /usr/local/libexec/nagios/check_nrpe2 -H building.unixathome.org -c check_pgsql -t 1
 OK - database template1 (0 sec.)|time=0.000000s;2.000000;8.000000;0.000000

Same version of nrpe everywhere:

$ pkg_info | grep nrpe
nrpe-2.13_2         Nagios Remote Plugin Executor

After a while, I found a similar issue, and decide to look at the config options for nrpe in the problem jail and compared it to to working jails.

It was SSL. This option was not checked in the problem jail:

 [x] SSL   Enable SSL support (disables plain-text server)

Once I checked it, ran portupgrade -f nrpe2, and restarted the daemon: service nrpe2 restart, all was well:

/usr/local/libexec/nagios/check_nrpe2 -H dbclone.unixathome.org -c check_pgsql -t 1
 OK - database template1 (0 sec.)|time=0.000000s;2.000000;8.000000;0.000000

DOH!

Website Pin Facebook Twitter Myspace Friendfeed Technorati del.icio.us Digg Google StumbleUpon Premium Responsive