SSH
SSH, the Secure SHell, is an essential tool for many developers and administrators. SSH provides a way to establish encrypted, authenticated connections. The most common use of an SSH connection is to get a remote shell, but it's possible to do many other things through SSH as well, including transferring files and tunneling other connections.
The twisted.conch package adds SSH support to Twisted. This chapter shows how you can use the modules in twisted.conch to build SSH servers and clients.