[Standards] RFC 3920, 10.2/10.3: subdomain routing rules
fippo at goodadvice.pages.de
Wed Mar 28 04:58:38 UTC 2007
Justin Karneges wrote:
>>There are a couple of comments, in sections 3.2 and C.4, which seem to
>>imply that routing of subdomains was special in pre-SRV Jabber, so would
>>I be right to guess that this is a historical artefact?
> The only "special" routing that I'm aware of, is that if a domain resolves to
> the same IP address as one which you already have an active dialback s2s
> stream with, then you can initiate a new dialback right over the existing
> stream. (Server guys: correct me if I'm wrong).
In the post-dialback (or even with starttls+dialback) world you dont
want such reuse (tls+sasl being the main reason for this). So this
applies only to dialback anyway.
> In the old days it was very common for subdomains to all point to the same IP
> address as the base domain, however I don't think there was any protocol
> specifically for subdomains.
> I, too, don't understand why the RFC even mentions subdomains at all.
+1 on removing them.
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