> Enabling debugging didn't give any more information. Macro
> processing showed
> that the command string is the one I used interactively
> except that it has a
> trailing space.
>
> '/usr/local/icinga/libexec/check_dns -H xx.xx.xx.xx '
>
> Check result are then stored in a temporary file but this
> file is removed
> very quickly afterwards, so there is no chance to check that.
>
> After issuing the check_dns command via execv there is no
> more detailed
> information available. Maybe I need a wrapper for check_dns to get
> additional debug information.
I found a work around to get this check running normally.
I installed a wrapper perl script to get all STDERR and STDOUT information
but this didn't solve the problem.
-------
2010-6-16 9:31:35 ------ debugging
cmd=[/usr/local/icinga/libexec/check_dns '-H' 'xx.xx.xx.xx' '']
output=[check_dns: Invalid hostname/address -
]
retcode=3
So this error is really raised inside of the check_dns command.
Since I was puzzled by the railing space I extend the command definition for
check_dns with an trailing '-v':
# 'check_dns' command definition
define command{
command_name check_dns
command_line $USER1$/capture.pl $USER1$/check_dns -H
$HOSTADDRESS$ $ARG1$ -v
}
'-v' is actually not speicified in the help (./check_dns --help) but it
returns the used nslookup command as well.
And from now the check works as expected.
2010-6-16 9:51:35 ------ debugging
cmd=[/usr/local/icinga/libexec/check_dns '-H' 'xx.xx.xx.xx' '-v']
output=[/usr/bin/nslookup -sil xx.xx.xx.xx
Server: xx.xx.xx.xx
Address: xx.xx.xx.xx#53
Xx.xx.xx.xx.in-addr.arpa name = XXXXX.tm.iabg.de.
DNS OK: 0.012 seconds response time. Xx.xx.xx.xx returns
XXXXX.tm.iabg.de.|time=0.011628s;;;0.000000
]
retcode=0
-------
Ansgar
Industrieanlagen-Betriebsgesellschaft mbH
Vorsitzender des Aufsichtsrats: RA Engelbert Kupka MdL a.D.
Geschaeftsfuehrung: Prof. Dr.-Ing. Rudolf F. Schwarz
Sitz der Gesellschaft: Einsteinstrasse 20, 85521 Ottobrunn
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Handelsregister Nr.: HRB 5499
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