opensnitch - 1.5.8.1-1+b2 main

Whenever a program makes a connection, it'll prompt the user to allow or deny
it.
.
The user can decide if block the outgoing connection based on properties of
the connection: by port, by uid, by dst ip, by program or a combination
of them.
.
These rules can last forever, until the app restart or just one time.
.
The GUI allows the user to view live outgoing connections, as well as search
by process, user, host or port.
.
OpenSnitch can also work as a system-wide domains blocker, by using lists
of domains, list of IPs or list of regular expressions.