Hum didn't work for me. The program ran but in ncurses mode the Enter key was not mapped correctly or something.
Then in GTK mode. I scanned for hosts and it only found 2 out of 7. Then when I tried to add them to the Targets lits it made entries named "invalid" and wold not work. Then I put the entries in the Targets list manually and it Said it started Sniffing then I whent to Arp poison -sniff remote connections... and it just didn't do anything. When I ran the plugin check-poison it said "this plugin must be ran during a poising session"

I did this stuff to install it.....
I cba making a .deb, this is a tgz of my /opt/ettercap
So the install process is the following:

* copy tgz to /opt/
* tar xzvf
* now you gota make symlinks to /bin/ for ettercap etterfilter and etterlog, and symlinks to /usr/lib for libnet and libpcre.
ex: ln -s /opt/ettercap/bin/ettercap /bin/ettercap


ln -s /opt/ettercap/lib/libnet.so.1.3.0 /usr/lib/libnet.so.1
and
ln -s /opt/ettercap/lib/libpcre.so.3 /usr/lib/libpcre.so.3