Assaf Flatto wrote: > yuris wrote: > >> Hi all, >> >> I have this weird trouble with getting nrpe agents work. My nagios >> server hosts on Debian box while agents on Debian and Centos (all >> installed from official binary packages) and the problem is check_nrpe >> always returns this "NRPE: No output returned from plugin" error when I >> check NRPE on any Centos host and this is true with all plugins - all of >> them does not return anything. I turned on debug at one Centos host but >> still it does not show me anything, when I run from nagios host: >> >> ./check_nrpe -H centos.host.com -c check_load >> >> I always get "NRPE: Unable to read output" and there is nothing in >> syslog at agent's host in spite of debug is on. >> >> My assumption was that command definitions on Centos host side use path >> to plugins that is different from Debian, for example: >> >> command[check_load]="/usr/lib/nagios/plugins/check_load -w 15,10,5 -c >> 30,25,20" [Debian host] >> command[check_load]="/usr/lib64/nagios/plugins/check_load -w 15,10,5 -c >> 30,25,20" [Centos host] >> >> but I made symbolic link so that plugins could be called by the same >> path - it didn't help. When I run command locally, all works just fine: >> >> su nrpe -c "/usr/lib/nagios/plugins/check_load -w 15,10,5 -c 30,25,20" >> OK - load average: 1.28, 0.97, 0.97|load1=1.280;15.000;30.000;0; >> load5=0.970;10.000;25.000;0; load15=0.970;5.000;20.000;0; >> >> while from nagios server: >> >> ./check_nrpe -H centos.host.com -c check_load >> NRPE: Unable to read output >> >> The weird part of it is that all plugins work fine on debian hosts. >> Nagios uses the same host, service and command definitions for all >> monitored hosts (both debian and centos) and I really wonder what's >> wrong with centos nrpe agents :/ >> >> If anyone have any ideas, please try to help. >> >> P.S. I use Nagios server v.3 (from Debian lenny) and Nrpe agents >> versions are the same on Debian and Centos (v.2.12). >> >> >> > from first look it seems that one of your server has SSL installed on it > and the other does not and nagios -by default - assumes ( command > definitions) to use nrpe with ssl . > > Try to execute the command on the CentOS hosts , but add "-n " after the > host IP , and see if that will help . > > Assaf > > Clarification :
./check_nrpe -H centos.host.com -n -c check_load -- Never,Ever Cut A Deal With a Dragon ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
