Some weeks ago, I published an article in order to install GNS3 beta, now GNS3 is under 1.2.3 version, so here is an update to install it from scratch on ubuntu/elementaryos :
~ sudo add-apt-repository ppa ...I just want to show you a useful tool for your networking calc called sipcalc, to install it (under debian based, but it should also exists in your favorite distro) :
sudo aptitude install sipcalc
Some examples, here in IPv4 format :
~ sipcalc ...
Some weeks ago, GNS3 released its beta version, here is the way to install it from scratch on ubuntu/elementaryos :
~ sudo add-apt-repository ppa:fkrull/deadsnakes
~ sudo aptitude update
~ sudo aptitude install git python3.4 python3.4-dev qt4-qmake ...