How can I know if the user is connected to the local machine via ssh in my python script?
views:
59answers:
3
A:
Am I correct in assuming you're running your script on some sort of UNIX/Linux system? If so, you can just type "users" on the command-line, and it will show you the currently logged in users.
Also, if you call the "lastlog" command, that will show you all the users on the system and the last time they all logged in to the machine.
warriorpostman
2010-08-18 00:24:08
+6
A:
You can use the os module to check for the existence of the environment variable SSH_CONNECTION.
>>> import os
>>> using_ssh = 'SSH_CONNECTION' in os.environ
Andrew
2010-08-18 00:24:40
"`'SSH_CONNECTION' in os.environ`" is already boolean, no need to overcomplicate it, you could just write "`using_ssh = 'SSH_CONNECTION' in os.environ`".
Matt Curtis
2010-08-18 00:28:32
Thanks! Edited the code.
Andrew
2010-08-18 00:30:59
OK, after the edit, I deleted my answer and upvoted yours :)
Matt Curtis
2010-08-18 02:44:27
A:
Check any of the SSH variables SSH_CONNECTION, SSH_CLIENT, or SSH_TTY. However, these can be unset by the user.
Check the output of who am i. It will end with the remote system identification in brackets if you are connected remotely. Make sure to handle x-term sessions which will have a colon (:) in the remote system id.
BillThor
2010-08-18 00:53:39