How to install the GNS3 server on Ubuntu 24.04 LTS Linux

Start creating and testing your network before actually deploying by installing the GNS3 network simulator on Ubuntu 24.04 server or desktop Linux…

GNS3 is a network simulator tool for students, designers, and engineers for creating and testing networks in a virtual environment without actually having physical hardware. Graphical Network Simulator-3 (GNS3) offers a user-friendly graphical interface with the ability to drag and drop various kinds of devices to create networks such as routers, switches, and firewalls, as well as virtual devices like Cisco IOS, Juniper JunOS, and more. Using GNS3 users can use such devices in a virtual workspace and interconnect them to create a network topology.

Key GNS3’s functionalities:

  • Network Topology Design
  • Device Emulation
  • Integration with Real Hardware for providing a hybrid environment for testing.
  • Packet Capture and Analysis
  • GNS3 has a large and active community of users

Let’s see the steps we can follow to install GNS3 on Ubuntu 24.04 Linux:

Steps to Install GNS3 on Ubuntu 24.04 Linux

Step 1: Add GNS3 PPA repository

The packages to install GNS3 on Ubuntu 24.04 are not available directly from the official repository of Ubuntu. Therefore, we need to add the PPA repository provided by the developers of this network simulation tool. Here is the command to run:

sudo add-apt-repository ppa:gns3/ppa

Step 2: Run Update and Upgrade

After adding the PPA repository of GNS3, run the system update and upgrade.

sudo apt update && sudo apt upgrade

Step 3: Installing GNS3 on Ubuntu 24.04

Now, we can install the GNS3 network simulator using the default Ubuntu 24.04 package manager APT, on your command terminal execute the given command:

sudo apt install gns3-gui gns3-server

Step 4: Launch GNS3

As we are done with the installation process there are two ways to open the GUI of GNS3 one is using the Application menu and the other is by running a command in the terminal.

From the GUI Application menu:

Run GNS3 on Ubuntu 24.04

Using Terminal:

gns3 &
Installing GNS3 server on Ubuntu 24.04

Uninstallation or Update

In the future to install any available update for GNS3, users can run the Ubuntu system update and upgrade command i.e.

sudo apt update && sudo apt upgrade

Whereas for completely removing the GNS3, use:

sudo apt remove gns3-gui gns3-server

Learn more about GNS3 from its official documentation.

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