[Nagiosplug-help] Plugin help and needed!

[Subhendu Ghosh]

One list only please.

have you tried the check_tcp plugin ?

On Thu, 17 Apr 2003, Jasmine wrote:

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> Hi gurus,
> 
> does anyone know of a plugin that can check a port. If it is open I want it to 
> return Ok status intead of critical? Because i have a script but its not 
> working & On nagios web interface, it keeps reporting "no output!" error.  I 
> tested the script is working by itself , but somethings screwed when i tried 
> to execute it as user 'nagios'.
>  `su - nagios ./check_remote_port -H x.x.x.x -P 23` 
> 
> Here's the permissions: 
>  -rwxr-xr-x    1 nagios   nagios       3247 Mar 27 18:41 check_remote_port
> 
> Here's the script in Perl.
> 
> #!/usr/bin/perl
> # Usage:
> # check_remote_port_closed -H <host>
> 
> use IO::Socket;
> use Getopt::Long;
> Getopt::Long::Configure('bundling');
> 
> $version=0.01;
> 
> my %ERRORS = ('UNKNOWN' , '-1',
>               'OK' , '0',
>               'WARNING', '1',
>               'CRITICAL', '2');
> 
> 
> #
> #              some default values
> #
> 
> 
> #
> #              get command line options the regular way
> #
> GetOptions
>         ("V"   => \$opt_V, "version"       => \$opt_V,
>          "H=s" => \$opt_H, "hostname=s"    => \$opt_H,
>          "P=s" => \$opt_P, "port=s"        => \$opt_P,
>          "T=s" => \$opt_T, "timeout=s"     => \$opt_T);
> 
> #
> #              handle the verbose stuff first
> #
> if ($opt_V) {
>         print "\n";
>         print "check_remote_port_closed plugin version $version\n";
>         print "\n";
>         print "\n";
>         exit $ERRORS{'UNKNOWN'};
> }
> 
> 
> #              now get options the weired way and set the defaults
> #              if nothing else is provided
> #
> $opt_H = shift unless ($opt_H);
> $opt_P = shift unless ($opt_P);
> $opt_T = shift unless ($opt_T);
> print "No Host specified. (-H <hostname/ip>)\n" unless ($opt_H);
> exit $ERRORS{'UNKNOWN'} unless ($opt_H);
> print "No Port specified (-P <port>) \n" unless ($opt_P);
> exit $ERRORS{'UNKNOWN'} unless ($opt_P);
> 
> $TIMEOUT= $opt_T || 15;
> 
> $SIG{'ALRM'} = sub {
>      print ("OK: Cannot connect to port (alarm)\n");
>      exit $ERRORS{"OK"};
> };
> alarm($TIMEOUT);
> 
> 
> #
> #              now we set things up for the real work
> #              and fire up the request
> #
> 
> # Build the socket connection.
> 
> $socket = IO::Socket::INET->new(PeerAddr => $opt_H,
>                                 PeerPort => $opt_P,
>                                 Proto    => "tcp",
>                                 Type     => SOCK_STREAM) or
> &error_can_connect;
> close ($socket);
> print "CRITICAL: Can connect to port!\n";
> exit $ERRORS{'CRITICAL'};
> 
> sub error_can_connect {
>   print "OK: Cannot connect to port\n";
>   exit $ERRORS{'OK'};
> }
> 
> Here's my service definition
> 
> define service{
>         host_name                       		host abc
>         service_description             		Telnet
>         check_command                   		check_remote_port!23!10
> 	 active_checks_enabled           	1      
>         passive_checks_enabled          	0       
>         parallelize_check               		1      
>         obsess_over_service             		1       
>         check_freshness                 		0      
>         max_check_attempts              		3       
>         normal_check_interval           		1      
>         retry_check_interval            		1      
>         check_period                    		24x7    
>         notification_interval           		10      
>         notification_period             		24x7    
>         notification_options           		 n      
>         contact_groups                		  admin
> 
> }
> 
> Here's my command definition: 
> 
> # 'check_remote_port' command definition
> define command{
>         command_name    check_remote_port
>         command_line    $USER1$/check_remote_port -H $HOSTADDRESS$ -P $ARG1$ \ 
> - -T $ARG2$
>         }
> 
> And, $USER1$ Macro points to the right directory where the plugin is. 
> 
> 
> Thanks
> Jasmine Chua
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> 
> 
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