SOLVED: RE: Plugin error: Remote cisco commandvia SSH notworking

[Javier Castillo Alcibar]

http://www.nagiosexchange.org/Check_Plugins.21.0.html?&tx_netnagext_pi1[p_view]=792&tx_netnagext_pi1[page]=10%3A10 


 
 
 	
Javier Castillo Alcíbar (2404)
+34 91 787 23 00 javier.castillo at a-e.es
 	
 
 
 
 
 

-----Mensaje original-----
De: Donnell Lewis [mailto:donnell.lewis at icoretechnology.com] 
Enviado el: jueves, 16 de noviembre de 2006 17:33
Para: Javier Castillo Alcibar
CC: Andreas Ericsson; nagios-users at lists.sourceforge.net
Asunto: Re: [Nagios-users] SOLVED: RE: Plugin error: Remote cisco commandvia SSH notworking

Don't forget you may also want to post this on nagiosexchange.com as it's a great resource for Nagios related projects.

Thx,

-Don Lewis

On Thu, 2006-11-16 at 17:13 +0100, Javier Castillo Alcibar wrote:
> Hello,
> 
> I think I solved the problem. Notice this command in my perl script: 
> "$ENV{'HOME'} = '/var/lib/nagios';"
>  
> Nagios process was executing the plugin with HOME env varible set to 
> "/root" ¿?¿?.  This made ssh fails when trying to read 
> $HOME/.ssh/config files.... (root folder is not readable by other 
> users)
> 
> Finally, my contribution to nagios world: check_cisco_ping_ssh (ping from cisco routers, using ssh):
> 
> #!/usr/bin/perl
> # Net::SSH de http://www.stupidfool.org/perl/net-ssh/
> #
> # Use: usr/local/sbin/check_cisco_ping_ssh <host> <port> <user> <pass> 
> <ip> <warn> <crit> # use strict;
> 
> use Net::SSH::Perl;
> 
> $ENV{'HOME'} = '/var/lib/nagios';
>  
> my $router=$ARGV[0];
> my $port=$ARGV[1];
> 
> my $user=$ARGV[2];
> my $pass=$ARGV[3];
> 
> my $ip=$ARGV[4];
> 
> my $warn=$ARGV[5];
> my $crit=$ARGV[6];
> 
> 
> 
> my $sesion_ssh = Net::SSH::Perl->new($router, protocol=>1, 
> cipher=>'DES', port=>$port, debug=> 'false'); 
> $sesion_ssh->login($user, $pass);
> 
> my $comand="ping $ip";
> 
> my($output, $output_error, $value_exit) = $sesion_ssh->cmd($command);
> 
> $output =~ /Success rate is (\d*) (.*)/;
> 
> my $rate=$1;
> 
> if ( $rate <= $crit ) {
>         print "PROBLEM: Rate=$rate%\n";
>         exit 2;
> }
> 
> if ( $rate <= $warn ) {
>         print "WARNING: Rate=$rate%\n";
>         exit 1;
> }
> 
> if ( $rate <= 100 ) {
>         print "OK: Rate=$rate%\n"; 
>         exit 0;
> }
> 
> exit 3;
> 
>  
> 
> Enjoy it.
> Regards
>  	
> Javier Castillo Alcíbar (2404)
> Alhambra Eidos.
> +34 91 787 23 00 javier.castillo at a-e.es
>  	
>  
> 
> 
> 
> 
> 
> -----Mensaje original-----
> De: Andreas Ericsson [mailto:ae at op5.se] Enviado el: jueves, 16 de 
> noviembre de 2006 16:59
> Para: Javier Castillo Alcibar
> CC: nagios-users at lists.sourceforge.net
> Asunto: Re: [Nagios-users] Plugin error: Remote cisco command via SSH 
> notworking
> 
> 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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> 
> 
>  
> Muchas gracias.
> Alhambra-Eidos. We solve IT, we solve it
> --------------------------------------------------------
> 
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Muchas gracias.
Alhambra-Eidos. We solve IT, we solve it
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