Bug 459961

FYI, this cannot be done with the glibc resolver.  You'd need lwresd running, or a local caching nameserver that's able to do split DNS.  NM used to launch bind as a local caching nameserver, but tons and tons of people started complaining about "why do I have to run bind on me desktop it's insecure and takes up memory wah wah" and such.  Thus the functionality was removed.

It could be accomplished again via dispatcher scripts, or a D-Bus enabled service (like named itself) listening to NetworkManager interface messages that would grab the IP4Config exported by NM for each connection and send that to the local caching nameserver, then rewrite /etc/resolv.conf to point to 127.0.0.1 automatically.

I would be quite happy with a local caching DNS server running.  It seems from the manual that lwresd would be more secure than the current setup (getting randomised source ports, assuming the bind9 library does that), but won't help with the zone splitting.

(In reply to comment #1)
> FYI, this cannot be done with the glibc resolver.  You'd need lwresd running,
> or a local caching nameserver that's able to do split DNS.  NM used to launch
> bind as a local caching nameserver, but tons and tons of people started
> complaining about "why do I have to run bind on me desktop it's insecure and
> takes up memory wah wah" and such.  Thus the functionality was removed.

Cannot we get at least optional -- i.e., if I have dnsmasq (or lwresd if that works, I don't know anything about that yet) installed, then I have a checkbox "Use DNS in this network only for the machines on this network" (similar to "Use this connection only for resources on its network"; my checkbox could be somehow subcheckbox for the latter or something).

> It could be accomplished again via dispatcher scripts, or a D-Bus enabled
> service (like named itself) listening to NetworkManager interface messages that

IIRC, named doesn't work with DBUS anymore.

> would grab the IP4Config exported by NM for each connection and send that to
> the local caching nameserver, then rewrite /etc/resolv.conf to point to
> 127.0.0.1 automatically.

Could we get an example of this NMDispatcher script?

Created attachment 329372 [details]
/etc/NetworkManager/dispatcher.d/99-dnsmasq-juggling

Attached script could be an example of what might work -- of course, it needs to be generalized and made working with some kind of configuration file. (This is mostly for other people stumbling on this bug as an information what could be done).

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I understand this is still in Fedora 10, yet to check 11.

This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle.
Changing version to '12'.

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*** Bug 632116 has been marked as a duplicate of this bug. ***

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