test_unhex_str()=('t', 'e', 's', 't')
Should be = 'test'

If we connect to a server and receive a "login failed" message and we haven't got a password, popup to ask the user.
Make it throttled and a configurable option (that can be toggled from the popup) to prevent being DoSed by fake local mDNS servers swarming us.
Maybe we shouldn't even try to login if there are no ssh keys and no password.. (alert user? or ask for password?)

If an NX session does not have an actor and it is still connected somewhere (this should not happen... but it does), we should wait a bit then force the nxagent to disconnect (send kill -1)