[Nagiosplug-help] Problems with check_icmp

[Andreas Ericsson]

Lutz_Rethberg wrote:
> I wont to make host-alive-check of a hosts, who is a unknown ( for me )
> router behind the firewall. I don't know anything about him. He doesn't
> answer for question by ssh, therefore I had the Idea to test him by icmp.
> It works from command-line, but it doesnt work as checkkommand. Why ?
> 

If you're using FreeBSD 5.x or any other operating system where pid_t is 
wider than 16 bits (if processes can have ID values that are greater 
than 65535), you need to download and install the latest check_icmp 
version. It's at http://oss.op5.se/nagios/check_icmp-2005-03-14.tar.gz

> 
> Details:
> cause of:
> 
> bash-2.05$ /usr/local/nagios/libexec/check_icmp -H gw
> check_icmp: Failed to obtain ICMP socket: Permission denied
> 
> I've set root-permissions, then it works from command-line as user nagios:
> 
> bash-2.05$ id
> uid=987(nagios) gid=1(other)
> bash-2.05$ /usr/local/nagios/libexec/check_icmp -H gw
> OK - gw: rta 0.674ms, lost 0%|rta=0.674ms;200.000;500.000;0; pl=0%;40;80;;
> bash-2.05$
> 
> 
> Some of the Definitions:
> 
> checkcommands.cfg:
> define command{
>         command_name    check-icmp
>         command_line    $USER1$/check_icmp -H $HOSTADDRESS$
>         }
> 
> services.cfg
> define service{
>         use                     generic_service
>         host_name               gw
>         service_description     TK_GW_ICMP
>         check_command           check-icmp
> }
> 
> 
> Result:
> 
> 
> Current Status:   CRITICAL
> Status Information: CRITICAL - 195.243.217.110: rta nan, lost 100%
> Performance Data: rta=0.000ms;200.000;500.000;0; pl=100%;40;80;;
> Current Attempt: 1/5
> State Type: HARD
> Last Check Type: ACTIVE
> Last Check Time: 2005-03-13 11:02:23
> Status Data Age: 0d 0h 0m 51s
> Next Scheduled Active Check:   2005-03-13 11:07:23
> Latency: 0.011 seconds
> Check Duration: 3.857 seconds
> Last State Change: 2005-03-12 19:51:07
> Current State Duration: 0d 15h 12m 7s
> Last Service Notification: N/A
> Current Notification Number: 0
> Is This Service Flapping?   NO
> Percent State Change: 0.00%
> In Scheduled Downtime?   NO
> Last Update: 2005-03-13 11:03:05
> 
> 
> Active Checks:   ENABLED
> Passive Checks:   ENABLED
> Obsessing:   DISABLED
> Notifications:   ENABLED
> Event Handler:   ENABLED
> Flap Detection:   ENABLED
> 
> Thanks for help
> 
> Lutz rethberg
> 
> 
> 
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-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer