Nagios Support Forum

8/12/13 10:29:42.541 PM nrpe[1312]: Starting up daemon
8/12/13 10:29:42.541 PM nrpe[1312]: Cannot write to pidfile '/var/run/nagios/nrpe.pid' - check your privileges.
8/12/13 10:29:42.542 PM nrpe[1312]: Warning: Could not set effective GID=11
8/12/13 10:29:42.543 PM nrpe[1312]: Warning: Unable to change supplementary groups using initgroups()
8/12/13 10:29:42.543 PM nrpe[1312]: Warning: Could not set effective UID=11
8/12/13 10:29:42.543 PM nrpe[1312]: Network server bind failure (48: Address already in use)

Running on Mac O/S X 10.8 server. I am seeing these every few second in my logs. I followed instructions in a previous post that I had hoped would fix the problem by moving the nrpe.pid file. No good. This machine also has a problem with memory to 96% every few hours after restart.

Thanks for help in advance.

Please share the output of the following, run this command but change it's directory to that of your nrpe.cfg file:
How did you install NRPE on this OS/X system? Did you by chance copy it from another installation?

Sorry since this is a mac install the command you sent did not work. I did modify to "grep pid /usr/local/nagios/etc/nrpe.cfg
Below the output

focusbh:~ admin$ grep pid /usr/local/nagios/etc/nrpe.cfg
pid_file=/var/run/nagios/nrpe.pid
focusbh:~ admin$

This was installed from the Nagios server using the Monitoring Wizard. Not copied from another install.

Can we get a listing of that pid (checking permissions):

Below is the result of the command.....

focusbh:~ admin$ ls -la /var/run/nagios/nrpe.pid
ls: /var/run/nagios/nrpe.pid: No such file or directory
focusbh:~ admin$

Whats next?

You will need to find the location of the nrpe.pid file and change the following path in the .cfg file to the correct one:
Any idea of where the nrpe.pid is residing?

Ok...sounds like we are going in circles and I was first asked for the location of the PID file in the .cfg and then checked the location of the PID file and then we are back to asking the location of the PID file.

The script says the PID file should be
/var/run/nagios/nrpe.PID...I changed it from the default (following instructions from someone else having the same problem) for /var/run/nrpe.PID...

You have asked me to check the permissions on the /var/run/nagios/nrpe.pid and I do not have that file. It sounds like it is not being created when NRPE runs.

Am I correct so far?

Whats the new step in fixing this problem?

I asked you to check the location of the pid, and see what was defined in the nrpe.cfg, now that showed me that either the nrpe.PID is not getting created, or, you have the wrong directory defined in the .cfg so you will need to find where the nrpe.pid file is located and change that directory as stated above.......

Lets back up one directory checking for permissions on /var/run and /var/run/nagios:

I am having a very similar issue. However the nrpe.pid file does not exist on my Macs. the retunes nothing. How do I create the nrpe.pid file.

This should be created when a NRPE process is spawned, how are you initializing NRPE on your mac systems?