NRPE compiling

[sappjt]

I went to install the nrpe agent on a redhat 5 server. It wants gcc to compile, but we don't have that installed on the servers for vulnarability issues. Can I pull the binaries from another compiled machine and have them work? Do you, or will you have another way of installing... maybe an rpm or something to that extent?

[tonyyarusso]

Yes, compiling on another machine of the same OS & architecture and then moving the binaries over should work. Additionally, while we do not have an RPM of our own, NRPE is present in the EPEL repositories for CentOS & Red Hat if you're interested in using those.

[sappjt]

I want to use the epel repository for nrpe as this will allow ease of installing and updating. What specifice packages do I need (nrpe and or nsca)? I tried to get it working already, but I got a ssl handshake error. Are there any extra configurations to do?

[sappjt]

I think I have things correct now, but I still get "Unable to read output" except for the check_nrpe -H xxx.xxx.xxx.xxx, which returns the version of nrpe. Any ideas?

[mguthrie]

Two things you'll want to check.

If you're sending arguments with your check commands, make sure you check the following setting in your nrpe.cfg file on the client machine.

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# Values: 0=do not allow arguments, 1=allow command arguments
dont_blame_nrpe=1

Check commands on the nrpe client machine must match up with the service definitions.

NRPE Client Definition

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command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10

Accepted Nagios check command:

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check_nrpe -H <hostaddress> -c check_users

OR using argument:

NRPE Client Definition

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command[check_users]=/usr/local/nagios/libexec/check_users $ARG1$ 

Nagios server check command

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check_nrpe -H <hostaddress> -c check_users -a '-w 5 -c 10'