[Psi-Devel] Psi can't find the XMPP server via multicast and doesn't fallback

[Jan Niehusmann]

On Fri, Dec 11, 2009 at 03:20:15PM +0100, Jan Niehusmann wrote:
> I got an interesting bug report via the debian BTS (see attachment). As I
> don't know how multicast dns works, I'm not sure how to debug this. Does
> anyone of you know more about that topic?

I should have done some research, first. :-)

http://files.multicastdns.org/draft-cheshire-dnsext-multicastdns.txt
(found on http://www.multicastdns.org/), reads:

"Any DNS query for a name ending with ".local." MUST be sent
to the mDNS multicast address (224.0.0.251 or its IPv6 equivalent
FF02::FB)."

There is no fallback to unicast DNS mentioned, so I think psi is acting
as specified in this draft. And in fact, it's probably not psi but some
unix library doing the query, as 'ping xyz.local.' does the same.

Regards,
Jan