If we want to write the shortest article of the whole site it would be: Wireshark is fantastic!
But you might need a broader introduction than this :).
Wireshark is a tool that was developed in the late 80s as Ethereal by Gerald Combs. Over the years different people have added different dissectors to it which permits to go really deep into network traffic analysis which can be super handy if you want to want to troubleshoot a problem that you think is network related.
If you want to start a career as a network engineer, make sure this tool is under your belt.
What does it cost?
Zero, nada, null, gratis. Wireshark can be downloaded for FREE from https://www.wireshark.org/download.html
Any books on Wireshark?
There are several good books about Wireshark, but this is our preferred one:
ISBN Number: 9781893939943
Link: https://a.co/d/iOmh5xw
Certifications
The team has a certification exam that is called the Wireshark Certified Network Analyst. You can find more information on the WCNA website
