Comment 9 for bug 276357

please note that ltsp (which we promote as a product) by default uses ssh -Y as connection method (with proxied X connection as described above) and offers an additional feature to do teh X traffic forwarding unencrypted (while keeping teh password handshake in a ssh tunnel) that is secured by xauth cookies. LDM (the ltsp display manager) uses functionallity to add and remove on the fly generated session cookies to the Xauthority file of the user for the latter case, i dont see why this shouldnt just work in case of a hostname change.