Package: x2goclient Version: 4.0.2.0
(I'm filing this against 4.0.2.0 b/c it's still present there. If bugs should be filed against the version they initially appeared in, please let me know)
not affected: 4.0.0.3 with PulseAudio 0.9.6 not affected: 4.0.1.2 with PulseAudio 0.9.6 possibly affected (untested) 4.0.1.3 with PulseAudio 0.9.6 affected: 4.0.1.3+build2 with PulseAudio 0.9.6 affected: 4.0.2.0
Preface: The followin issue has been observed on Windows; whoever takes care of this should also check if the same issue occurs on Linux and Mac when using the ssh agents shipped with these operating systems.
Situation: 4.0.1.2 with PulseAudio 0.9.6 and older clients allowed the use of an external SSH agent that loads and memorizes SSH private keys (so you don't have to re-enter your private key's passphrase whenever you try to connect). In my case, this SSH agent was "Pageant" from the PuTTY package.
With 4.0.1.3+build2/PA0.9.6, using the same (registry-stored) settings as before, x2goclient.exe pops up a dialog box asking me for my private key's password. Which it does over and over again, without ever connecting. To me, it looks like it's asking for the password for a non-existant private key, the key with the file name "", thus it always fails.
Assumption: Someone tried to add/fix code regarding ssh public key authentication (maybe something to do with bug #322?), took care of whatever issue there was with private key file handling by x2goclient itself, but overlooked the possibility that an external ssh agent might be involved.
Net Result: SSH public key login using an SSH agent is effectively broken in 4.0.1.3+build2 (and possibly 4.0.1.3), up to 4.0.2.0-2014-03-06 (nightly build), and probably still broken in the current source.
Sounds like a case for one of our two Mikes ...
-Stefan