[dns-operations] Tor and the answers > 512 bytes

Peter Palfrader peter at palfrader.org
Tue May 13 18:12:05 UTC 2014


On Tue, 13 May 2014, Hauke Lampe wrote:

> On 13.05.2014 18:25, Stephane Bortzmeyer wrote:
> 
> > It appears that Tor is still limited to 512 bytes / no TCP :-(
> 
> Indeed, the restricted set of query types offered by libevent also
> prevents SRV lookups for XMPP.

> Someone[tm] should rewrite Tor's resolver to use libunbound ;-)

Calling Tor's hostname lookup backend a DNS resolver is overly
nice. :)

I think it only does A, AAAA and PTR records, and it only returns one
answer (even if say an RRset contains more than one IP address).

Doing proper DNS resolution, including returning the entire dnssec chain
back to the client on resolves, would be nice.  Somebody should do it.  :)

Cheers,
-- 
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