[solved] dns problem with vpnc and internal domain

Lawless · l33t Joined: 03 Nov 2003 Posts: 638 Location: Germany

Hi,

I have turned my gentoo server into a router providing dns and dhcp services through dnsmasq.
I have set up a private domain home.lan and managed to get it working on all machines so that I can simply ping the other dhcp clients by name.

Now I also need a vpn connection (with vpnc) which brings in another private domain name in a .prv network and I cannot get the name resolution working for both.

Without vpnc resolv.conf is looking like this

jsfan · Posted: Sat Apr 14, 2007 2:41 am Post subject:

Just a thought... Can you put your local DNS server into the VPN too and get it to resolve .prv through the VPN's DNS server? That might work...

d_m · Posted: Sat Apr 14, 2007 3:13 am Post subject:

The problem here is that your operating system assumes that all of the nameservers in resolv.conf agree. You might imagine that it will try contacting all of them and then see which of them were able to resolve the name, but it doesn't. Thus, if you want to be able to resolve your private DNS queries, and also resolve your internal company DNS queries, you have (at least) the following options:

1. use /etc/hosts to put in entries for one set of queries, and use DNS for the other.
2. set up your private DNS server so it can resolve your VPN DNS queries (possibly by having it also use vpnc; this is what jsfan suggests).

Good luck.
_________________
The name that can be named is not the eternal name.

Lawless · l33t Joined: 03 Nov 2003 Posts: 638 Location: Germany

I've installed dnsmasq on the client now to provide a local dns which itself knows about home.lan and prv.
_________________
Kernel panic: I have no root and I want to scream