<div dir="ltr">can you run check_nrpe locally on the host?<div>can you run check_nrpe -H <host> and no arguments?</div><div style>firewall issues?</div><div style>selinux on target host?</div><div style> </div><div style> some things that popped out of my head.</div><div class="gmail_extra"> <div class="gmail_quote">On Sat, Apr 27, 2013 at 5:54 PM, Edwin Zoeller <<a href="mailto:Edwin.Zoeller@ama-assn.org" target="_blank">Edwin.Zoeller@ama-assn.org</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div lang="EN-US" link="blue" vlink="purple"> If you have nrpe agents running on the remote hosts make sure that the deamon is running with the user ID of nagios. <div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"> From: Jim Miller [mailto:<a href="mailto:jmiller@centricgroup.com" target="_blank">jmiller@centricgroup.com</a>] Sent: Saturday, April 27, 2013 10:24 AM To: <a href="mailto:nagios-users@lists.sourceforge.net" target="_blank">nagios-users@lists.sourceforge.net</a> <<a href="mailto:nagios-users@lists.sourceforge.net" target="_blank">nagios-users@lists.sourceforge.net</a>> Subject: [Nagios-users] check_nrpe Connection refused by host </div><div><div class="h5"> <div> Hello everyone, I’m sure this is common issue. But I’m stumped. I can run check_nrpe from the command line on the monitoring server w/out any problem. But for all of the nrpe_checks the server runs, I see: LOGS: [1367058676] SERVICE NOTIFICATION: icingaadmin;<a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a>;Free Space of sda1;CRITICAL;notify-service-by-email;Connection refused by host [1367059156] SERVICE NOTIFICATION: icingaadmin;<a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a>;Current Users;CRITICAL;notify-service-by-email;Connection refused by host [1367059216] SERVICE NOTIFICATION: icingaadmin;<a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a>;Total Processes;CRITICAL;notify-service-by-email;Connection refused by host [1367059276] SERVICE NOTIFICATION: icingaadmin;<a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a>;Zombie Processes;CRITICAL;notify-service-by-email;Connection refused by host [1367059646] SERVICE NOTIFICATION: icingaadmin;<a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a>;CPU Load;CRITICAL;notify-service-by-email;Connection refused by host MANUAL CHECKS: [root@xio99cdejump01 icinga]# /usr/lib64/nagios/plugins/check_nrpe -H <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> -c check_users_count -a 5 10 USERS OK - 1 users currently logged in |users=1;5;10;0 [root@xio99cdejump01 icinga]# /usr/lib64/nagios/plugins/check_nrpe -H <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> -c check_load_avg -a 15,10,5 30,25,20 OK - load average: 0.00, 0.00, 0.00|load1=0.000;15.000;30.000;0; load5=0.000;10.000;25.000;0; load15=0.000;5.000;20.000;0; [root@xio99cdejump01 icinga]# /usr/lib64/nagios/plugins/check_nrpe -H <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> -c check_sda1 DISK OK - free space: /boot 379 MB (82% inode=99%);| /boot=79MB;387;435;0;484 [root@xio99cdejump01 icinga]# /usr/lib64/nagios/plugins/check_nrpe -H <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> -c check_swap_usage SWAP OK - 100% free (5119 MB out of 5119 MB) |swap=5119MB;1023;511;0;5119 [root@xio99cdejump01 icinga]# /usr/lib64/nagios/plugins/check_nrpe -H <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> -c check_zombie_procs PROCS OK: 0 processes with STATE = Z [root@xio99cdejump01 icinga]# /usr/lib64/nagios/plugins/check_nrpe -H <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> -c check_total_procs PROCS OK: 106 processes ========================== Monitored Client: RHEL 6.3 NRPE - nrpe-2.13-1.el6.x86_64 [root@xio99cdejump02 nagios]# netstat -anp |grep nrpe tcp 0 0 <a href="http://0.0.0.0:5666" target="_blank">0.0.0.0:5666</a> 0.0.0.0:* LISTEN 5418/nrpe [root@xio99cdejump02 nagios]# /etc/init.d/nrpe restart Shutting down nrpe: Apr 27 09:53:33 xio99cdejump02 nrpe[5418]: Caught SIGTERM - shutting down... Apr 27 09:53:33 xio99cdejump02 nrpe[5418]: Daemon shutdown [ OK ] Starting nrpe: Apr 27 09:53:33 xio99cdejump02 nrpe[5502]: INFO: SSL/TLS initialized. All network traffic will be encrypted. [ OK ] [root@xio99cdejump02 nagios]# Apr 27 09:53:33 xio99cdejump02 nrpe[5503]: Starting up daemon Apr 27 09:53:33 xio99cdejump02 nrpe[5503]: Warning: Daemon is configured to accept command arguments from clients! Apr 27 09:53:33 xio99cdejump02 nrpe[5503]: Listening for connections on port 5666 Apr 27 09:53:33 xio99cdejump02 nrpe[5503]: Allowing connections from: 127.0.0.1, 10.xxx.0.110 Command Config Lines /etc/nagios/nrpe.cfg command[check_users_count]=/usr/lib64/nagios/plugins/check_users -w 5 -c 10 command[check_load_avg]=/usr/lib64/nagios/plugins/check_load -w 15,10,5 -c 30,25,20 command[check_sda1]=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p /dev/sda1 command[check_swap_usage]=/usr/lib64/nagios/plugins/check_swap -w 20% -c 10% command[check_zombie_procs]=/usr/lib64/nagios/plugins/check_procs -w 5 -c 10 -s Z command[check_total_procs]=/usr/lib64/nagios/plugins/check_procs -w 150 -c 200 Monitoring Server: Nagios Plugins – v.1.4.16-5 Config files: ----------------------- define command{ command_name check_nrpe command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ } ----------------------- define host { use linux-server host_name <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> alias "xio99cdejump02" address "10.xxx.0.110" } define service { use generic-service host_name <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> service_description CPU Load check_command check_nrpe!check_load_avg } define service { use generic-service host_name <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> service_description Current Users check_command check_nrpe!check_users_count } define service { use generic-service host_name <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> service_description Check Swap check_command check_nrpe!check_swap_usage } define service { use generic-service host_name <a href="http://xio99cdejump02.example.com" target="_blank">xio99cdejump02.example.com</a> service_description Free Space of sda1 check_command check_nrpe!check_sda1 } --------------------------- Thanks for any suggestions, Jim </div> </div></div></div> ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. 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