Gevent 1.1a2 solves this problem...

Basically yes. It is easy to reproduce this error on fresh xubuntu 15.04 amd64 installation. nonSSL works fine.

/usr/bin/ajenti-panel -v
Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/gevent/greenlet.py", line 327, in run result = self._run(*self.args, **self.kwargs) File "/usr/lib/python2.7/dist-packages/gevent/server.py", line 102, in wrap_socket_and_handle ssl_socket = self.wrap_socket(client_socket, **self.ssl_args) File "/usr/lib/python2.7/dist-packages/gevent/ssl.py", line 382, in wrap_socket ciphers=ciphers) File "/usr/lib/python2.7/dist-packages/gevent/ssl.py", line 84, in __init__ ctx = SSLContext(ssl_version)NameError: global name 'SSLContext' is not defined<Greenlet at 0x7fd6e274c4b0: <bound method SocketIOServer.wrap_socket_and_handle of <SocketIOServer at 0x7fd6e2827fd0 fileno=6 address=0.0.0.0:8000>>(<socket at 0x7fd6e2747a50 fileno=12 sock=10.0.0.41, ('10.0.0.34', 50076))> failed with NameError

Same problem... Fresh install Xubuntu 15.04

I have same problem, nonSSL works fine