Best Telegram Programming Groups For Coders &Developers   It Wasn’t Me - Secure Your Account   Mr.Robot All Seasons 1,2,3 Full | Free Torrent Download   Mr.Robot All Seasons 1,2,3,4 Full | Watch Online [FREE]   5 Tips Will Keep You Safe During Christmas Holiday’s Online Shopping   You Can Get All Adobe Apps For $30 a Month Right Now   How To Wipe An iPhone Clean (ERASE) Before Selling?   Programming Languages To Learn To Be An Expert Hacker!   Cybercriminals exchange tips on underground forums about avoiding arrests   A comprehensive look into emerging Signal encrypted messaging application   A Detailed Comparison of WhatsApp, Telegram & Signal   How Telegram End-to-end Encryption Works To Provide Security ?   Flubot Malware is Spreading Quickly Through Android Devices   WhatsApp End-to-End Encryption and its Privacy Importance - Alternatives,Signal & Telegram   What is Credit Card Skimming And How To Protect Yourself From it ?   Where to hire react programmer and 3 essential skills to look for   Top 8 Basic Google Search Dorks [Live Examples]   [Penetration Testing] Top 70 Most Interview Questions   Why VPN Is Necessary ? [Detailed Guide]   Top 10 Dangerous Viruses Of All Times   List Of Common HTTP Error Status Codes   “Hello World!” Program In Different Programming Languages   100 Basic Computer Related G.K. Questions   Email Security - Tips And Tricks   Fonts Hub Collection (Free Design Resources)   Top 8 Softwares Free Download - No Credit Card Needed [2022 Update]   Shortcomings That Leads An Entrepreneur Towards Failure   5 Basic Steps To Protect Your Personal Data Online   What is Intel SGX and What are the Benefits ?   15 Things You Need to Know About Maintaining The Logs   How to think like a programmer - lessons in problem solving   How To Get Voice Like Anonymous Voice   Life Story of Microsoft Founder Bill Gates - Documentary   Own Private Search Engine in Linux Will Save Our Privacy   Best Etcher alternatives to Create Bootable USB   Music For Programming - Coding Music / Hacking Music   School Management Software v3.1 Premium + Crack   JavaFX Chat Client/Server + Source Code   Top 25 Keyword Research Tools [Search Engine Optimization]   A Quick SEO Checklist - 2023 Update   Online Domain Authority (DA) Rank Checker Websites   33 Things In SEO For Which Google Will Give Your Student Blog High Positions   How to Close the Site from indexing using robots.txt   10 SEO Tools all Small Businesses Need in 2023   Earth Rise Application + Code   Animation along a path + Code   Zen Pong Game in Java Language + Code   Simple Flying Bird Game + Code Files   Game Snake Simple + Code Files   The Space 'Sun & Earth' | HTML,CSS,JavaScript   File System in Web (Explorer in Windows and Finder in OSX)   Admin Dashboard Template built using Bootstrap + Code   Website Template For Admin Dashboard + Code   Youtube Playlist Downloader Script   How To Create A Stopwatch In Python   Python TicTacToe with Tk and minimax AI   Deskreen turns any device with a web browser into a secondary screen for your computer   Download Algorithms Book | Dummies Store   OSI Model And TCP/IP Model   How to Fix SSH Failed Permission Denied (publickey,gssapi-keyex,gssapi-with-mic)   What Is Load Balancing? Definition and How It Works   How to Setup FTP Server on Your Raspberry Pi   Download Windows 10 Lite Edition x64 | Direct Link   How To Recover Permanently Deleted Files In Windows 10 ?   How to make Fake Error Message Script in Windows   20 Essential Windows keyboard Shortcuts that will make you forget your mouse   How To Fix The DLL Missing Error In Windows 7 ?   Create Hotspot on Windows 10 in 6 steps   Download Microsoft Office Professional Plus 2016   Download DriverPack Solution Offline | Full   How To Create Simple And Password Protected ZIP File in Linux   2 Ways To Save Terminal Output of a Command in Linux   6 Best Tools to Monitor Disk IO Performance in Linux   Top 15 Best Websites (Blogs) to Learn Linux Online   How to Delete files older than 30 Days in Linux   What is the difference between apt and apt-get command   Fail2Ban Installation & Setup: Ubuntu, CentOS, Fedora & Debian   How to List Running Processes in Linux   How to Use the who Command in Linux with Examples   FOREMOST - Recover Permanently Deleted Files Easily in Kali Linux   Funny Linux Commands to Try   Command line interface guidelines, to help you write better command-line programs ...   How to Install Google Chrome Web Browser on Ubuntu 20.04   Learn Adobe Photoshop | 33 Episode Course   Window Privilege Escalation: Automated Script   Linux Privilege Escalation: Automated Script   How To Retrieve & Decrypt Stored Passwords in Firefox & Chrome Remotely   ACLight: An Advanced Privileged Account Discovery Tool   How to change Lock Screen Background on Kali Linux XFCE   Best 20 Kali Linux Tools For Hacking And Penetration Testing   How to Run Windows Application and Games on Kali Linux   How to run C and C++ programs in Kali Linux   Control Kali Linux PC From any Mobile or Tablet   How to Enable root User Account in Kali Linux   How to Configure Static IP address in Kali Linux   Bash vs ZSH in Kali Linux   [Solved] E: Unable to locate package in Kali Linux   Hosting a Local Website with Domain Name on Kali Linux over WiFi   Install Docker in Kali Linux and Run Other OS   How to Install Kali Linux | A Total Guide to Install Kali Linux   NetHunter Rootless - Official Kali NetHunter for non rooted phones   How to set up own VPN server in 10 minutes on Kali Linux using OpenVPN   Configuring The ProxyChains   Install Python3 in Kali Linux   TempoMail - Command Line Temporary Email in Linux   NIPE - Fully Anonymize Total Kali Linux System   How to Install Google Chrome & Chromium on Kali Linux [Official Method]   15 Best Laptops For Kali Linux & Cyber Security - Check This Before Buy   Volatolity - Digial Forensic Testing of RAM on Kali Linux   Limit the Internet Speed of LAN Users [Evil Limiter]   Find Virtual Machine IP Through Kali Linux - 3 Methods   Privilege Escalation with PowerShell Empire and SETOOLKIT [Kali Linux]   How to use kill, pkill and killall Commands to Kill any Linux Process   20 Useful Tar Commands For Extraction and Compression   Create a Fake AP with DNSMASQ and HOSTAPD [Kali Linux]   How to Fully Anonymize Your Linux System with Tor using Nipe   Hack Windows/Linux using ARCANUS Framework – 100% FUD   Simple and Target Mac Flooding - Kali Linux   Get Free Kali Linux on AWS with Public IP - Real Time Penetration Testing   What’s the difference Between Tails and Tor browser?   Does Tor Hide you From Your ISP? Should I surf internet using Tor ?   Wireshark for Pentester: Decrypting RDP Traffic   Exploit Wi-Fi Vulnerabilities with Routersploit on Termux and Linux   Man in The Middle Attack & How To Prevent it   Masscan - 1000 Times Faster Than NMAP   Wireshark - Shark in Wires | Network Protocol Analyzer in Kali Linux   Wifite - Easy Automated Wireless Attack   WiFi-Pumpkin 3 - Dangerous Access Point   Evil Twin Attack with DNSMASQ - Wireless WPA2-PSK Cracking   Sniffing with Rogue Access Point [DNSMASQ and TCPFLOW]   Hack Wi-Fi Settings of Windows Machine Remotely [After Meterpreter]   Wi-Fi deauthentication attack against 802.11 protocol   Bypass Hidden SSID in a Wireless Network [Full Proof Method]   Crack WPA/WPA2-PSK using Aircrack-ng and Hashcat   Crack WPA2-PSK Wi-Fi with automated python script - FLUXION PART 1   Set Default Version of Python : [SOLVED] update-alternatives: error: no alternatives for p   Python Scripting: Information Gathering and Automating Ethical Hacking   15 Essential Meterpreter Commands Everyone Should Know   Find Vulnerable Webcams with Shodan [Metasploit Framework]   TCP & SYN Scanning with Metasploit Framework without NMAP   Meterpreter Useful Top 60 Commands List   The Web Application Hacker's Handbook 2   Hacking GPS Book   MadCam - Termux Hack Front camera by Sending link   How to Download Files In Termux   IPdrone Termux - Find Location of Person it IP in Termux   ReconDog Termux - Best Reconnaissance Tool For Termux   Termux SSH: Use Termux in Windows Using SSH Server   How to Install and Use Fsociety-Tool In Termux   Termux-YTD : Download Youtube Videos with Termux   Use CMatrix Package Like a Pro   L3MON - Access Android Devices Remotely   Hack Android using Metasploit over LAN/WAN   Ghost Framework - Control Android Devices Remotely   Top 10 Vulnerable Android Applications [Penetration Testing]   Find Hidden Subdomains on Any Website with Subfinder   Blind Sql Injection with Regular Expressions Attack   Useful Google Dorks For Bug Bounty Hunters   HTML5 Security CheatSheet - What your browser does when you look away...   30,000 Sites Is In RISK, The Plus Addons For Elementor WordPress Plugin Hacked   WPScan - Find Vulnerabilities in WordPress Websites on Kali Linux   Wapiti - Automated Vulnerability Scanner   Generate 100% FUD Backdoor with TheFatRat - Windows 10 Exploitation   TheFatRat hacking tool to create undetectable backdoors   How to Make a Keylogger in Python + Code   How to create a keylogger in PowerShell ?   Backdoor Program using Python (Remote Access Explain)   Man in the Middle Attack with Websploit Framework   Hack Windows 10 Remotely over WAN with Metasploit [No Port Forwarding]   15 Powerful Gadgets For Ethical Hackers | Hardware Tools for Hackers   Find Vulnerabilities using NMAP Scripts (NSE)   Free Vulnerability Database And Resources   Firefox Browser Vulnerable to (MITM) Man-in-the-Middle Attack   Find Vulnerabilities in Military Networks By Participating Hack The Army Bug Bounty Progr. 


This tutorial explains how to install Packet Tracer 8.0.0 and previous versions on Ubuntu Linux. Learn installation steps of Packet Tracer on Ubuntu through screenshots.

Packet Tracer is a network simulator software. It allows us to simulate all essential networking devices that are tested in the CCNA exam. You can download Packet tracer from the following webpage.
Download Packet Tracer for Windows and Linux

Installing Packet Tracer 8.0.0​

Download Packet Tracer 8.0.0 and open the folder that contains the downloaded file.
Double click the downloaded file. It should open the installer file in the Software Center. The Software Center is the default program of Ubuntu for software installation. From the Software Center, you can install and remove software in Ubuntu.

In some circumstances, Ubuntu may open the file in the Archive manager instead of the Software Center. If it opens the downloaded file in the Archive manager, close the Archive manager and right-click the downloaded file and click the "Open with other application" option and click the "Software install" option.
The following image shows this process.

packet tracer installation start

The Software Center reads the package information from the installer file and displays that information. This information includes the application, license type, version, and file size.

Click the Install button to start the installation.

packet tracer installation 8.0

In Ubuntu, all software management-related tasks require authentication. This feature protects the system from unauthorized modifications. To authenticate the installation process, type your password and click Authenticate button when the installation process displays the authentication box.

authenticate installation

Upon successful authentication, the installation process starts. The installation process displays the real-time progress of the installation process.

real time progress

If the installation process completes without any error, the Software Center displays a message that indicates that Packet Tracer has been installed successfully.
If the installation process ends with an error, you have to install Packet Tracer from other methods. Instead of providing the exact reason that stops the installation process, the Software Center displays a generic message that indicates that the installation process fails.
The following image shows the generic error message that the Software Center displays.

installation error

Troubleshooting installation
Open the folder that contains the installation file. Right-click in the folder and click the "Open in Terminal" option.
The following image shows this process.

open in terminal

On the terminal, run the following command.
$sudo dpkg -i [installer file name]
Type your password when it prompts you to authenticate the installation.
The following image shows the above command.

authenticate installation

Press the Enter key to accept the license.

accept license

Accept the terms of the end-user agreement.

accept end user agreement

Now, the command installs Packet Tracer. If the installation fails, the command displays the exact reason that stops the installation. The most common reason for failure is the dependency on packages. Packet Tracer needs several packages. If one or more packages are not installed or configured, the installation fails. For example, Packet Tracer 8.0.0 needs the following packages that are not configured by default.
libgl1-mesa-glx,  libxcb-xinerama0-dev
The following image shows the error message that indicates that Packet Tracer depends on these packages but these packages are not configured on the system.

installation error message

To fix the dependency error, install and configure the missing packages. To install the libgl1-mesa-glx package, use the following command.
$sudo apt-get update -y
$sudo apt-get install -y libgl1-mesa-glx

The following image shows the above command with the output.

dependency error

To install the libxcb-xinerama0-dev package, use the following command.
$sudo apt-get install -y libxcb-xinerama0-dev
The following image shows the output of the above command.

fix install -y libxcb-xinerama0-dev

After installing the missing packages, install Packet Tracer again.

command to install package

After the successful installation, use the following command to start Packet Tracer.

start packet tracer

If Packet Tracer starts normally, it verifies that Packet Tracer has been installed successfully.

starting packet tracer

Installing a previous version
Download the version of Packet Tracer that you want to install and open the folder that contains the downloaded file. Select the downloaded file and right-click. From the right-click menu, click the Run option.

open in terminal

The installation process starts in a graphical wizard. The first screen of the wizard presents the welcome message. Click the Next button.

welcome message

The next screen allows us to customize the installation directory of Packet Tracer. Default location is the /opt/pt. Keep the default selection and click the Next button.
If you want to install Packet Tracer in another directory, use the Browse button to navigate the file-system and select the directory that you want. If you change the installation directory, make sure you use the changed directory path in the following steps.

installation directory

The next screen displays the license agreement. Select the "I accept the license" option and click the Next button.

accept licensee

On the next screen, the installation process displays the size of the disk space that Packet Tracer will use after the installation. Till this stage, the installation process writes nothing on the disk. So, if you want to make any change, such as changing the installation directory, use the Back button and make the necessary change.
When you are done, click the Install button.

ready to install

Type your password to authenticate the installation.

authenticate the installation

The installation process usually takes less than a minute, but in some circumstances, it may take a few minutes. You can see the real-time progress of the installation.

installation progress

Once the installation is complete, the wizard displays the result of the installation on the last screen. If something goes wrong during installation, the wizard displays the corresponding error message on this screen. Click the Finish button to close the wizard.

setup finish

Once the installation is complete, you can start the packet tracer in two ways. To start it from the application launcher, click the Dash button. In the search box of the opened-pane, type "packet tracer". Click the Packet Tracer icon from the result.

start packet from the dash

To start Packet Tracer from a terminal, use the packettracer command.

start packet tracer from command

Solving Packet Tracer startup issue​

If Packet Tracer does not start from any of the above-mentioned methods, use the following steps to troubleshoot the startup issue.
Open a terminal and change the current directory to the installation directory (/opt/pt) of Packet Tracer. If the installation directory contains any post-installation script, execute that.
cd /opt/pt
sudo chmod +x
sudo ./

change directory

Change the current directory to the directory /opt/pt/bin and execute the launcher file of Packet Tracer directly. If Packet Tracer does not start, the reason that blocks Packet Tracer from starting will display on the terminal. The most common reason is the following.

Packet Tracer uses a library named of Ubuntu. This library has been deprecated in Ubuntu. Since this library is no longer available in Ubuntu and Packet Tracer depends on this library, the packet tracer does not start.
The following image shows the error of the missing library.

missing library

To solve this issue, we have to install the library manually. This library is available as a package in the following repository.
This is a third-party repository and by default not available in Ubuntu. To install a package from this repository, we have to add this repository to the repository source-list.

Before we add an entry of this repository in the repository source-list, let’s take the backup of the current repository source-list.
Use the following commands to take backup and open the existing source-list file for editing.
#cp /etc/apt/ sources.list /etc/apt/sources.list.bak
#nano /etc/apt/sources.list

Add the following lines at the end of the file and save the file.
#Manually added a source for libpng12-0 package
deb xenial main

Run the following commands to install the library.
#apt-get update
#apt-get install libpng12-0

The following image shows the above commands with output.

installing missing library

Now close the opened terminal and open a new terminal. In the new terminal, run the packettracer command again to verify that Packet Tracer starts normally.

starting packet tracer

That’s all for this tutorial. If you like this tutorial, please don’t forget to share it with friends through your favorite social channel.