How to Install GNS3 on Ubuntu

Опубликовано: 18 Март 2026
на канале: Shivendra Singh
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In this video, you'll learn a simple, step-by-step process for installing GNS3 on Ubuntu. We'll cover everything from the initial setup to getting GNS3 up and running so you can start building and simulating your own network topologies.

GNS3 (Graphical Network Simulator-3) is a powerful and free network simulation software that allows you to create complex network topologies virtually. It's an essential tool for anyone studying for Cisco CCNA, CCNP, or simply wanting to practice their networking skills in a risk-free environment.

Command:

Step 1: Add the GNS3 PPA

sudo add-apt-repository ppa:gns3/ppa
Step 2: Update Your Package List
Bash
sudo apt update
Step 3: Install GNS3
Bash
sudo apt install gns3-gui gns3-server
Step 4: Add User to GNS3-related Groups (Optional but Recommended)
Bash
sudo usermod -aG ubridge,libvirt,kvm,wireshark,docker $USER
Step 5: Install IOU and Docker Support (Optional)
Bash
sudo dpkg --add-architecture i386
sudo apt update
sudo apt install gns3-iou
Docker Support: Docker is a great way to run lightweight virtual machines and containers within GNS3.
Bash
sudo apt install docker.io
sudo systemctl enable --now docker