How to ask a DNS resolver listening on a different port than the tcp/udp 53

Terje Elde terje at
Fri Sep 27 22:08:48 UTC 2013

On 28. sep. 2013, at 00:03, Frank Leonhardt <frank2 at> wrote:

> If I understand the way it works correctly, the resolver pulls a list of the NS and hard-sets the port number for each to 53 (via a manifest constant) . See libc/resolv/res_init.c. All you need to do(!) is change this to a value of your choice and recompile libc

Sorry, but this is startin to look a lot like a complicated solution to a problem that isn't really there...

Why not just point from resolv.conf to localhost, run a caching and/or recursive dns-server there, and point it whereever?

As far as I can tell, that'd solve everything, add caching, and let it all be controlled from the config of the DNS-server?


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