<div dir="ltr">I did modified the nrpe.cfg to execute commands via sudo by adding the following line: command[check_smartmon]=/usr/bin/sudo /usr/lib64/nagios/plugins/check_smartmon ata -d /dev/sda Why I'm able to invoke the following plugins from the nagios server using check_nrpe but when invoking check_smartmon I get NRPE: Unable to read output? command[check_users]=/usr/lib64/nagios/plugins/check_users -w 8 -c 10 command[check_load]=/usr/lib64/nagios/plugins/check_load -w 15,10,5 -c 30,25,20 command[check_disk1]=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p /dev/mapper/VolGroup00-LogVol00 command[check_disk2]=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p /dev/mapper/VolGroup00-LogVol01 command[check_disk3]=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p /dev/mapper/VolGroup00-LogVol02 command[check_disk4]=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p /dev/mapper/VolGroup01-LogVol00 command[check_md]=/usr/lib64/nagios/plugins/check_swraid 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 200 -c 300 <div class="gmail_quote">On Tue, Aug 12, 2008 at 12:25 PM, <<a href="mailto:kyle.odonnell@gmail.com">kyle.odonnell@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> executing check_nrpe via sudo will not accomplish what you want. You will need to either modify the nrpe.cfg to execute commands via sudo, or write a wrapper for check_smartmon. I am not familiar with that plugin, but you may also be able to edit it and prepend /path/to/sudo before it execs smartctl. <div><div></div><div class="Wj3C7c"> On 8/12/08, Jake Solid <<a href="mailto:richardsolid@gmail.com">richardsolid@gmail.com</a>> wrote: > I'm trying to use check_nrpe with check_smartmon but I'm getting NRPE: > Unable to read output at the Nagios Server. *All other check plugins like > check_load and check_procs work fine. > * > *I'm running the following command from my nagios server to the remote host: > * > *./check_nrpe -H <a href="http://remotehost.domain.com" target="_blank">remotehost.domain.com</a> -c check_smartmon* > > *and the out put is the following:* > *NRPE: Unable to read output* > > *This is what the remote host logs display:* > *Aug 12 11:16:13 *remotehost* xinetd[7151]: START: nrpe pid=7986 from= > <a href="http://198.162.1.1" target="_blank">198.162.1.1</a> <- Nagios Server IP Address > Aug 12 11:16:13 *remotehost* nrpe[7986]: INFO: SSL/TLS initialized. All > network traffic will be encrypted. > Aug 12 11:16:13 *remotehost* xinetd[7151]: EXIT: nrpe status=0 pid=7986 > duration=0(sec)* > > > *When I use the check_smartmon directly in the remote machine as the user > nagios and using sudo it works fine:* > [nagios@remotehost plugins]$ sudo /usr/lib64/nagios/plugins/check_smartmon > ata -d /dev/sda > OK: device is functional and stable (temperature: 33) > > *If I change the only_from line on /etc/xinetd.d/nrpe file to <a href="http://127.0.0.1" target="_blank">127.0.0.1</a> and > I run the following from the remote host I get prompted by a password:* > *[nagios@remotehost plugins]$ sudo /usr/lib64/nagios/plugins/check_nrpe -h > <a href="http://remotehost.domain.com.latpro.com" target="_blank">remotehost.domain.com.latpro.com</a> -c check_smartmon > Password: > * > *The permissions on the device are the following:* > *[nagios@remotehost plugins]$ ls -lah /dev/sda > brw-rw---- 1 root disk 8, 0 Jan 8 2008 /dev/sda* > > *The disk group also has nagios:* > disk:x:6:root,nagios > > > *And again the other plugins work fine when they are invoked from the Nagios > server. Like the following:* > [nagios@nagios-server plugins]$ ./check_nrpe -H <a href="http://remotehost.domain.com" target="_blank">remotehost.domain.com</a> -c > check_load > OK - load average: 2.14, 2.44, 2.72|load1=2.140;15.000;30.000;0; > load5=2.440;10.000;25.000;0; load15=2.720;5.000;20.000;0; > > *I added the following line on my remotehost to the /etc/sudoers:* > nagios ALL=(ALL) NOPASSWD: > /usr/sbin/smartctl,/usr/lib64/nagios/plugins/check_nrpe,/usr/lib64/nagios/plugins/check_smartmon > > I also try running the NRPE as adeamon and not with xinetd and I had the > same issue. > > Any inputs? > </div></div></blockquote></div> </div>