As an example, if using portforward restrictions (#4591) while connecting and forwarding of port is restricted the only message the client is presented is that the session only lived less then 10 seconds and nothing related to the access deny. When looking in client log file there is a line following line which we should trigg upon to present a more decent message for the end user. 'ssh[E]: channel 2: open failed: administratively prohibited: open failed' This problem is also trigged if someone installs ThinLinc server on a system wich is configured to no allow portforward, and on some systems this is also the defaults.