Wireshark Quick Start for Ubuntu 14.04 Trusty LTS
How to Install and Getting Started with the Latest Wireshark Network Analizer on Ubuntu 14.04 Trusty Tahr LTS GNU+Linux desktop.
Wireshark is the World’s foremost Network Protocol Analyzer. It lets you See what’s happening on your Network at a Microscopic Level.
 
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Open a Command Line Shell Session 
 Ctrl+Alt+t on desktop
 (Press “Enter” to Execute Commands)  
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How to Enable the Latest Wireshark Apt PPA Repo 
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Installing Latest Wireshark for Ubuntu. sudo apt-get install wireshark If Got “User is Not in Sudoers file” then see: How to Enable sudo 
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Getting Started Capturing Live Network Data with Wireshark 
