Is there a server which works with OH2?
Sure, I’ve used ejabberd and openfire (both self-hosted on Linux) for a while.
My ejabber instance works with OH1 but not with OH2 (Xmpp, Rejected potentially spoofed reply to IQ-packet)
Ok, my installation is still on version 1.8.3, since I could not get my configuration completely to work on 2.x