negate plugin problems

[Luca Corti]

Hi all,

I'm having problems with the negate plugin. I need this to check some
backup ISDN lines which I want to be reported down when they are up and
up when they are down.

I've defined a new command in checkcommands.cfg to check that an host is
NOT pingable:

define command {
    command_name    check-host-alive
    command_line    $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c
5000.0,100% -p 1"
}

define command {
    command_name    check-host-not-alive
    command_line    $USER1$/negate "$USER1$/check_ping -H $HOSTADDRESS$
-w 3000.0,80% -c 5000.0,100% -p 1"
}

I then set up templates for the hosts and the ping service to use check-
host-not-alive as their check_command.

The problem is Nagios still reports the hosts as down. But I tried the
check command from the commandline and it seems to return different
values.

# check_ping -H 127.0.0.1 -w 3000.0,80% -c 5000.0,100% -p 1
PING OK - Packet loss = 0%, RTA = 0.10 ms
# echo $?
0

# negate "check_ping -H 127.0.0.1 -w 3000.0,80% -c 5000.0,100% -p 1"
PING OK - Packet loss = 0%, RTA = 0.20 ms
# echo $?
2

What am I missing?

thanks

Luca




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