Plugin error: Remote cisco command via SSH notworking

[Andreas Ericsson]

Javier Castillo Alcibar wrote:
> 
> Hello all,
>  
> I have some cisco routers that can only be managed using SSH. I wrote an
> script, to do remotely some PING's from these routers, integrated in
> nagios.
> 
> My problem is very strange:
> 	- if a execute this script from the command line by myself, it
> works as expected.
> 	- if nagios process executes the script, it does not work. It
> looks like ssh process didn't return anything....
> 
> I think it's a problem related with ttys.....but I'm not sure.
> 
> This is my (perl) script:
> 
> #!/usr/bin/perl
> #
> # Uso: usr/local/sbin/check_cisco_ping_ssh <host> <port> <user> <pass>
> <ip> <warn-rate> <crit-rate> # use Net::SSH::Perl;
> 
> $router=$ARGV[0];
> $port=$ARGV[1];
> $user=$ARGV[2];
> $pass=$ARGV[3];
> $ip=$ARGV[4];
> $warn=$ARGV[5];
> $crit=$ARGV[6]; 
> 
> my $sesion_ssh = Net::SSH::Perl->new($router, protocol=>1,
> cipher=>'DES', port=>$port); $sesion_ssh->login($user, $pass);
> 
> $command="ping $ip";
> 
> my($output, $output_error, $val_exit) = $sesion_ssh->cmd($command);
> 
> $output =~ /Success rate is (\d*) (.*)/; $rate=$1;
> 
> if ( $rate <= $crit ) {
>         print "PROBLEM: PING Rate=$rate%\n";
>         exit 2;
> }
> if ( $rate <= $warn ) {
>         print "WARNING: PING Rate=$rate%\n";
>         exit 1;
> }
> if ( $rate <= 100 ) {
>         print "OK: PING Rate=$rate%\n"; 
>         exit 0;
> }
> exit 3;
> 
> 
> Any help is welcome!!.
> 

Have you compiled nagios with embedded perl support? If so, use
/usr/bin/perl /path/to/your/script.pl

instead of just

/path/to/your/script.pl

in the command definition.

Other than that, make sure that the nagios-user has access to execute 
the script and try it from the command-line *as the nagios user*. If 
that works, you've made some mistake in your configuration.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231

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