Ubuntu-based distributions
Run the following commands in a terminal:
sudo add-apt-repository ppa:gns3/ppa
sudo apt-get update
sudo apt-get install gns3-gui
Debian-based distributions (not tested)
Add the following lines to your /etc/apt/sources.list:
deb http://ppa.launchpad.net/gns3/ppa/ubuntu trusty main
deb-src http://ppa.launchpad.net/gns3/ppa/ubuntu trusty main
Finally, run the following commands in a terminal:
sudo apt-key adv –keyserver keyserver.ubuntu.com –recv-keys A2E3EF7B
sudo apt -get update
sudo apt-get install gns3-gui
Arch Linux
Note that this package is maintained by a third-party.
Run the following commands in a terminal:
pacman -S gns3-gui gns3-server
FROM SOURCE
Fedora
Run the following commands in a terminal:
yum install python3 python3-devel python3-setuptools
yum install python3-pyqt4
sudo pip3 install gns3-server
sudo pip3 install gns3-gui