[jdev] OLPC, Federation, and NAT

Alexander Gnauck gnauck at ag-software.de
Wed Apr 9 01:22:23 CDT 2008

Benjamin M. Schwartz schrieb:
> Unfortunately, it is possible that multiple school
> servers will be using different ports on the same global IPv4 address.
> The result would be multiple servers with the same IP address.  I imagine
> that this breaks s2s, since the XMPP standard seems to demand that
> servers' names be unique, and either IP addresses or DNS names.

the XMPP domain of your server must be unique. So you could have xmpp 
domains like:


if you setup SRV records for all this domains you should be fine. In the 
srv record you specify the s2s and c2s ports.


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