[olug] Testing contents of resolv.conf
sharpestmarble at gmail.com
Thu Aug 22 22:59:23 UTC 2013
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
> On Thu, Aug 22, 2013 at 2:43 PM, Dave Thacker <dthacker at bluestrain.net
> > 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
> > 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
> > ip
> > address would be used in a DNS lookup. Anybody got a command line I
> > run and pull a return from?
> > Dave
> > _______________________________________________
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