check_dns

[Richard Mayhew]

okie it seems sorted thanks...

1 question... with check_ping..

when pinging a unpingable ip, can it return packet loss rather than a
timeout?

One needs to add a -w (timeout) for the ping cmd, else it just sits there
and never stops, untill the plugin times out itself.

So one could add
eg. ping -n -U -c 1 -w ($timeout - 5secs) 1.1.1.1
ping -n -U -c 1 -w 55 1.1.1.1

so that the timeout of the plugin is always 5 secs more than the ping cmd
itself.

It seems there is a bug in the ping cmd for sometime now... I wonder if I
should try and report it.

----- Original Message ----- 
From: "Karl DeBisschop" <karl at debisschop.net>
To: "Richard Mayhew" <richard at splash.co.za>
Cc: "Karl DeBisschop" <karl at debisschop.net>; "Nagios Users"
<nagios-users at lists.sourceforge.net>
Sent: Friday, August 01, 2003 3:58 PM
Subject: [Nagios-users] Re: check_dns


> Richard Mayhew writes:
>
> > Hi
> > Sorry I re-did a check_dns --version just to check and I have
> >
> > check_dns (nagios-plugins 1.3.0) 1.8
> >
> > So, I guess there is a new version I should install?
>
> If you could try 1.3.1, that would help.
>
> > thanks
> >
> > ----- Original Message ----- 
> > From: "Karl DeBisschop" <karl at debisschop.net>
> > To: "Richard Mayhew" <richard at splash.co.za>
> > Cc: "Nagios Users" <nagios-users at lists.sourceforge.net>
> > Sent: Friday, August 01, 2003 3:32 PM
> > Subject: Re: check_dns
> >
> >
> >> Richard Mayhew writes:
> >>
> >> > Hi
> >> >
> >> > There seems to be a problem with check_dns. I run RedHat 7.3 with all
> > required updates, Nagios 1.1, Plugins 1.3.1.
> >> >
> >> > Here are the scenarios.
> >> >
> >> > 1. Dns Server is up and contactable.
> >> >     check_dns returns the correct information, reporting that the
> > service is etc.
> >> > 2. Dns Server is up but not contactable (firewall blocking requests)
> >> >     check_dns returns that the service is ok. (10 secs responce,
> > addresses is/all (null))
> >> >         True answer with -v flag is connection timed out.
> >>
> >> I am working on this one already.
> >>
> >> Cannot reproduce with RH 9. But I had been waiting on the plugin
version
> >> number, which you have just provided.
> >>
> >> > 3. Dns Server does not exist
> >> >     check_dns returns Segmentation Fault.
> >>
> >> News to me. I'll look into it tonight.
> >>
> >> > Any Ideas how to correct this?
> >>
> >>  --
> >> Karl
> >>
> >>
> >>
> >
>
>
>
>
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