From the OSI model’s seven layers to hands-on Wireshark packet analysis, mastering networking fundamentals bridges theory with real-world troubleshooting. Understanding TCP vs UDP, routing algorithms, ...

According to the OSI Model, the session layer is where connections are established, managed, and torn down. For connection-oriented network protocols, understanding how the session layer works, and ...

Thanks for your comments on my first EtherGeek post on understanding the OSI Model. I especially enjoyed learning new ways to remember the OSI Model; for example: Please Do Not Throw Stale Pizza Away.

Morey Haber, Chief Security Advisor at BeyondTrust, is an identity and technical evangelist with over 25 years of IT industry experience. Recently, I was reminiscing with a colleague about unique ...

This article examines netstat and some of it many outputs, in relation to the open systems interconnect (OSI) model. A quick examination of netstat's man pages provides a description of the program: ...

Explains the three layers critical to network design: Access, Distribution, and Core Anyone involved in networking and/or telecommunications should be somewhat familiar with the use of layers. Many ...