Custom Plugin

[Danny Russell]

I am trying to monitor a host that is behind a Cisco VPN Concentrator.
For simplicity right now I am just trying to use check_ping.

 

I have written an expect script (lhm.sh) that logs into the VPN and then
runs a check_ping command. Here is the code for lhm.sh:

     1    #!/usr/bin/expect -f

     2    set cmd_one [lindex $argv 0];

     3    log_user 0

     4    spawn vpnclient connect lhm pwd password

     5    expect "(y/n): " {send "y\r"}

     6    spawn ./check_ping -H $cmd_one -w 3000.0,80% -c 5000.0,100% -p
3

     7    interact

     8    set status [wait]

     9    #puts [lindex $status 3]

    10   exit [lindex $status 3]

 

Line #3 - disables the output to go to stdout. This hides all of the
nasty long VPN connection information.

Line #4 - connects to the VPN

Line #5 - sends a 'y' so the VPN is connected

Line #8 - gets the exit return code

Line #10 - exits with the exit return code from $status.

 

When I call './lhm.sh 10.30.31.51' this is the output:

[root at monitor plugins]# ./lhm.sh 10.30.31.51

PING OK - Packet loss = 0%, RTA = 60.68 ms

[root at monitor plugins]#

 

When I call './lhm.sh 10.30.31.51' with the puts un-commented this is
the output:

[root at monitor plugins]# ./lhm.sh 10.30.31.51

PING OK - Packet loss = 0%, RTA = 71.03 ms

0

[root at monitor plugins]#

 

When I call './lhm.sh 10.30.31.61' (A WRONG IP) with the puts
un-commented this is the output:

[root at monitor plugins]# ./lhm.sh 10.30.31.61

CRITICAL - Plugin timed out after 18 seconds

2

[root at monitor plugins]#

 

The problem is, when I create a custom check command in
/etc/Nagios/checkcommands.cfg to call /usr/lib/Nagios/plugins/lhm.sh
Nagios always reports it as up and (No output!). It even reports at UP
if I give it a wrong IP (10.30.31.61).

Host Status:  UP    

Status Information:(No output!)

 

Any ideas?

 

 

Thanks!

Danny Russell

Mobile Productivity, Inc.

drussell at mpifix.com

work-801.437.5885 mbl-801.722.5837

Enabling the World To Work

 

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