Nagios Support Forum

Goodmorning,
I recently browsed the entire internet to find a good manual for check_ssh
I really don't know why the command doesn't work.

The host has of course been created.
What I am doing is in Objects.cfg:
define services{
use Generic-service
hostname PRDITSWEL01
service_description ssh monitoring
check_command check_ssh
}

COMMANDS.CFG
# 'check_ssh' command definition
define command{
command_name check_ssh
command_line $USER1$/check_ssh $ARG1$ $HOSTADDRESS$
}


The Error I receive is:
NRPE: Command 'check_ssh' not defined.

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I must say that I also tried to use the following as check_command: check_nrpe!check_ssh
so it could be an old output???

I am really stuck in this one.
I must admit that I didn't do anything on the remote host ( from which I want to know if the port is open ) and the port is closed ( but then I assume that I should received a message that the port is closed or some sort ).

Your help would be gratefully appreciated.

check_ssh can be run from the nagios server as it is just checking a remote, public port. You do not use check_ssh through nrpe (unless you are using nrpe to access a check proxy/firewalled node/etc).

dre2007 wrote:I must say that I also tried to use the following as check_command: check_nrpe!check_ssh
so it could be an old output???

I would agree. Can you try running check_ssh from the cli? (replace <hostname> with the fqdn/ip of the host PRDITSWEL01)

Thanks that worked. Also opened the port so everything works now.

Thanks for letting us know!