In B3 1.2.1b, a remote logfile over FTP can be used.
In b3.xml, the game_log setting must be set to:
ftp://myusername:mypassword@serverip/path/to/games_mp.log
This will automatically download the logfile from a server that you only have ftp access to, allowing you to run b3 remotely.
The use of remote B3 requires Python 2.6, B3 will stop if you attempt to use it without Python 2.6.