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[Originally posted by pushp]


Early on in your book you mention the "probe" presence protocol will be
discussed in Chap 8, but I couldnt find it there.

What is in general the best way for an external application to discover the
presence status of the entire membership of a jabber server ?

Is it possible to do it with a client API ?

Should the application act as a server in the cluster and use the probe
protocol ?

Are there implementation specific details or hints on how changing presence
attributes can be pushed out to listeners/applications external to the jabber
server ?