Monitoring Ubuntu, Agent File

[A.Cormack]

Sorry Rookie mistake

changed back to

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#server_address=127.0.0.1

and did the nmap

says its open and its server is nrpe

But stil getting connection refused on Nagios

[abrist]

Alright, the port on the remote host is open. These edits are being done on the remote host's nrpe.cfg, is that correct? I am sorry, the nmap should be the ip of the remote host, not the nagios server.

Is 192.168.19.134 the nagios server or the nrpe remote host?

[A.Cormack]

Nagios Server - 192.168.19.134
Ubuntu Server - 192.168.19.141

The nrpe.cfg is being edited on the Ubuntu Server (.141).

So, If i've understood what you said, I went to the Nagios serer (.134) and typed..

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nmap 192.168.19.141 -p 5666

Which says

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PORT STATE SERVICE
5666/TCP CLOSED NRPE

So I'm guessing thats my problem and I need to open it? if so how?

[abrist]

Alright. I assume you have successfully compiled nrpe on the ubuntu server. Lets try starting nrpe if you have not done so:

On the ubuntu host, we will try to xinetd first, and if that does not work, try to start it by it's init script:

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/etc/init.d/xinetd restart

if that does not work, try:

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/etc/init.d/nrpe start

[A.Cormack]

I've really messed up somewhere I think, sorry for wasting your time.

I've just done "ls" in my init.d directory and xinetd or nrpe are not there :/

I think it might be best i start from fresh again.

[A.Cormack]

Ok, So I did

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sudo apt-get install xinetd
sudo apt-get install nagios-nrpe-server

now in Nagios I get

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CHECK_NRPE Received 0 bytes from Daemon. Check remote server logs for error messages

[abrist]

You will most likely need to edit the nrpe.cfg file again. The nrpe file for the package-based install is located in /etc/nagios. Go there and re apply your changes to the nrpe.cfg file.

[A.Cormack]

Yeah, I already changed them back to

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allowed_hosts=127.0.0.1,192.168.19.134
dont_blame_nrpe=1

still same message on Nagios

[abrist]

Alright, run the nmap command again to see if port 5666 is open. Could you post you /etc/nagios/nrpe.cfg file as well?
On the Nagios server:

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nmap 192.168.19.141 -p 5666

On the Ubuntu server:
You may want to stop the nrpe service, killall nrpe, and then bring it back up to make sure you are using the right config:

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/etc/init.d/nrpe stop
killall nrpe
/etc/init.d/nrpe start
ps -aef |grep nrpe

[A.Cormack]

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5666/tcp OPEN NRPE

After doing the NRPE commands you said, the message has now gone back to connection refused.

Its 23:09 here and been here since 17:00 so anything I do will have to be tomorrow. Thanks for all your help today, really appricaite it specially when I have no knowledge at all, hopefully I can get this resolved tomorrow.

As for the log file, it doesnt seem to want to copy/paste so ill just give you all the values if thats ok? If not just say and ill get you the full log tomorrow.

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log_facility=daemon
pid_file=/ar/run/nrpe.pid
serer_port=5666
server_address=127.0.0.1
nrpe_group=nagios
allowed_hosts=127.0.0.1,192.168.19.134
dont_blame_nrpe=1
allow_bash_command_substitution=0
command_prefix=/usr/bin/sudo
debug=0
connection_timeout=300