Firewall and DNS caching without NetworkManager

Sat May 18 15:40:40 UTC 2013

On Sat, May 18, 2013 at 15:18:15 +0100,
   আনন্দ কুমার সমাদ্দার Ananda Samaddar <ananda at samaddar.co.uk> wrote:
>On Sat, 18 May 2013 08:58:41 -0500
>
>Thanks Mikkel but I don't think this works.  In the ifcfg settings if
>you specify a DNS server then the network is assumed to have static
>DNS.  So if I put DNS1=127.0.0.1 in the the ifcfg-em1 file all I get in
>resolv.conf is that nameserver and not the one supplied by my router
>underneath.

Arguably that's what you want (barring wifi places that break dns 
to make capture portals work for authentication). If you use a resolving 
cache (such as ndjbdns) than you don't need to use the ISP dns. This saves 
from stupid ISP tricks (such as rewriting TTLs).