[olug] Testing contents of resolv.conf

[Kevin]

What about iptables?

    sudo iptables -I OUTPUT -d $primary_dns_server_ip -j REJECT


On Thu, Aug 22, 2013 at 4:47 PM, Jay Bendon <jaybocc2 at gmail.com> wrote:

> man host
>
>
> host domain.com.to.look.up $server_ip_to_query_from
>
> --Jay
>
>
> On Thu, Aug 22, 2013 at 2:43 PM, Dave Thacker <dthacker at bluestrain.net
> >wrote:
>
> > Scenario:
> >
> > The corporate mothership hath decreed that a new IP address be added to
> > /etc/resolv.conf on all linux devices, including some IVR appliances in
> my
> > realm.  (CentOS  and Red Hat)  The new address points to a snazzy new DNS
> > appliance.
> >
> > The Name Service Caching Daemon (nscd) is not in use, these boxes do not
> > run
> > any SMTP.  The primary application has the addresses it needs in
> > /etc/hosts.
> > My google-fu has failed me on finding a suitable way to see if this
> second
> > ip
> > address would be used in a DNS lookup.   Anybody got a command line I
> could
> > run and pull a return from?
> >
> > Dave
> >
> >
> >
> > _______________________________________________
> > OLUG mailing list
> > OLUG at olug.org
> > https://lists.olug.org/mailman/listinfo/olug
> >
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