Today I present this excellent article by Domenico Raffaele originally presented in his blog (in Italian) where you can find many other interesting articles about hacks and VoIP.
I’ve already wrote about unusual use of ssh. I want to return to this topic fascinating and almost unknown, once again, and I promise I will not be the last.
X11Forwarding
Since time immemorial (in the scale of computing eras), is common practice to launch remote applications (Xclients) in a graphical environment, but using them from local (Xserver).
Consider the need to scan the internal network to which it belongs remote server2, which can be accessed remotely via ssh.
Everyone knows (and loves) grep, I’ve also wrote an 
