regexp match problem

Andreas Unterkircher unki at netshadow.at
Thu Aug 25 08:30:09 CEST 2005


Hello!

I'm experiencing a problem with regular expression match in service check
definitions. Nagios version is 2.04b. In nagios.cfg I enabled regexp:

use_regexp_matching=1
use_true_regexp_matching=0

As far as I understand (documentation), because I disabled the true regexp
matching, regexp match would only occur if I use wildcard characters (*,?).

Now I have two hosts with the names:
*) LNX_SRVAPPNET
*) LNX_SRVAPPNET02

defined like the following:

# 'LNX_SRVAPPNET'
define host{
        use                     generic-host
        host_name               LNX_SRVAPPNET
        address                 192.168.1.1
        alias                   Appnet Server
}

# 'LNX_SRVAPPNET02'
define host{
        use                     generic-host
        host_name               LNX_SRVAPPNET02
        address                 192.168.1.2
        alias                   Appnet2 Server
}

On LNX_SRVAPPNET process inetd should be monitored through nrpe & check_proc,
but not on  LNX_SRVAPPNET. So a service is defined like the following:

define service {
        use                             generic-service
        service_description             PROC_inetd
        hosts                           LNX_SRVAPPNET
        check_command                   check_nrpe!check_procs!1: 1: inetd
}

The problem is, that not only LNX_SRVAPPNET has the check PROC_inetd, it also
appears on LNX_SRVAPPNET02 too. This happens also to any other service check
defined for LNX_SRVAPPNET. They are all appear on LNX_SRVAPPNET02 too.

I can reproduce this problem every time a hostname appears in a part of a
other hostname (LNX_SRVEBS, [LNX_SRVEBS]TEST,...).

There is no other service check definition which could cause this.

Some has the same phenomenon and probably a solution?

Cheers,
Andreas



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