I have been following this topic the last few days, and came to the same conclusion as vshaulsk.
In the Zentyal admin interface Network>DNS I have three DNS servers:
127.0.0.1
8.8.4.4
8.8.8.8
The last two are Google public DNS, because they are fast (geolocation from level3)
When I check resolv.conf, NONE of these entries are in the file, instead it has only the router IP from my ISP??
The router IP was automatically added to resolve.conf because my external interface is set as DHCP.
But it should by all means respect the configuration in the Zentyal admin interface.
According to what Christian says, I could have a misconfiguration. So, should I update /etc/resolv.conf manually?
Is this indeed a bug?
About the search domain, I know what it does but what do you put in there?
For example, my domain name is "zentyal.com" do you put only "zentyal" in the search domain field or do you add the .com extension also?
My setup uses 1 external and two internal interfaces, transparent proxy enabled and I wish to use Zentyal DNS cache for the clients.
Ultimate goal is to get a vlan capable switch (48 ports with 4Gb ports) to separate client groups. Similar to the setups from vshaulsk and ichat.
Cheers.