[olug] Testing contents of resolv.conf

[Brady Cox]

Bendon, you're already slacking at your new job?
On Aug 22, 2013 6:37 PM, "Jay Bendon" <jaybocc2 at gmail.com> wrote:

> nm-tool will also show you.
>
> zsh/2 231 % nm-tool
>
> NetworkManager Tool
>
> State: connected (global)
>
> - Device: eth0  [Wired connection 1]
> -------------------------------------------
>   Type:              Wired
>   Driver:            r8169
>   State:             connected
>   Default:           yes
>   HW Address:        redacted
>
>   Capabilities:
>     Carrier Detect:  yes
>     Speed:           1000 Mb/s
>
>   Wired Properties
>     Carrier:         on
>
>   IPv4 Settings:
>     Address:         redacted
>     Prefix:          21 (255.255.248.0)
>     Gateway:         redacted
>
>     DNS:             redacted
>     DNS:             redacted
>     DNS:             redacted
>
>
> --Jay
>
>
> On Thu, Aug 22, 2013 at 3:59 PM, Kevin <sharpestmarble at gmail.com> wrote:
>
> > 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
> > > >
> > > >
> > > >
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