<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:nagios-users@lists.sourceforge.net"></a>Hi Guys, I just installed & configured nagios on a RHEL4 U4 64bit 2.6.9-34.ELsmp [root@fisdb01 dist]# rpm -qa | grep nagios nagios-2.9-1.el4.rf nagios-plugins-1.4.8-2.el4.rf nagios-plugins-nrpe-2.5.2-1.el4.rf nagios-nrpe-2.5.2-1.el4.rf And I get a "Return code of 127 for check of service 'n-users' on host 'fisdb01' was out of bounds" Message on all services on all hosts. I saw on <a href="http://www.nagios.org/faqs/viewfaq.php?faq_id=17">http://www.nagios.org/faqs/viewfaq.php?faq_id=17</a> that this was most likely a problem with the path to the executable. but if that was so I wouldn't be able to do this: [root@fisdb01 services]# /usr/lib64/nagios/plugins/check_nrpe -H localhost -c check_users USERS OK - 3 users currently logged in |users=3;5;10;0 which proves it executes and in the right place. Right? some more info: [root@fisdb01 services]# ls -l /usr/lib64/nagios/plugins/check_users -rwxr-xr-x 1 root root 32138 Apr 20 22:06 /usr/lib64/nagios/plugins/check_users [root@fisdb01 services]# ls -l /etc/nagios/nrpe.cfg -rw-r--r-- 1 root root 8514 May 11 10:44 /etc/nagios/nrpe.cfg [root@fisdb01 services]# cat /etc/nagios/nrpe.cfg | grep users command[check_users]=/usr/lib64/nagios/plugins/check_users -w 5 -c 10 #command[check_users]=/usr/lib64/nagios/plugins/check_users -w $ARG1$ -c $ARG2$ command[unix_users]=/usr/bin/perl /usr/lib64/cactiscripts/unix_users.pl command[check_users]=/usr/lib64/nagios/plugins/check_users -w 5 -c 10 command[unix_users]=/usr/bin/perl /usr/lib64/cactiscripts/unix_users.pl nagios.log [1178875845] Nagios 2.9 starting... (PID=29283) [1178875845] LOG VERSION: 2.0 [1178875845] Warning: Duplicate definition found for host 'generic-host' (config file '/etc/nagios/hosts.cfg', starting on line 21) [1178875845] Warning: Duplicate definition found for service 'generic-service' (config file '/etc/nagios/services/services.cfg', starting on line 2) [1178875845] Finished daemonizing... (New PID=29284) [1178876155] Warning: Return code of 127 for check of service 'n-users' on host 'fisdb01' was out of bounds. Make sure the plugin you're trying to run actually exists. [1178876305] Warning: Return code of 127 for check of service 'n-users' on host 'fisdev01' was out of bounds. Make sure the plugin you're trying to run actually exists. I've spend many hours on this error..... So if someone can point me in the right direction? Thanks in advance, Jan Lenaerts