The state of resolv.conf

Paul Howarth paul at city-fan.org
Mon Sep 15 15:54:09 UTC 2008


Jon Biggar wrote:
> Paul Howarth wrote:
>> Ahmed Kamal wrote:
>>> I have an itch. I connect to work using openvpn. Works great, except 
>>> that
>>> openvpn does not modify resolv.conf to add work's dns servers (now 
>>> available
>>> through vpn). It does that on Windows though! I cannot expect openvpn or
>>> (any other application) to simply overwrite /etc/resolv.conf at will, 
>>> but
>>> what is fedora missing to get an elegant solution to this problem ?
>>
>> I use a local DNS server that forwards queries (both forward and 
>> reverse lookups for the network I'm connecting to) down the tunnel. So 
>> /etc/resolv.conf always contains just localhost as the nameserver.
> 
> Does that handle the case well where you've got a laptop and you move 
> from one wireless network to another?  How would you get it to recognize 
> the changing DNS servers in that case?

If you have your local server set up as a caching DNS server, it 
wouldn't matter, as your local server wouldn't use $PROVIDER's server at 
all, and would resolve things itself via the root servers (just as the 
provider's servers would do, though they will have a bigger cache).

Paul.




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