I love new security testing tools. There is nothing quite like finding some magical bits of code allowing you to use and abuse protocols in unique and unnatural ways. I was introduced to Loki at ...

Joel is an internationally recognized expert in the areas of security, networking and messaging. Follow him on X (formerly Twitter) @joelsnyder. Building enterprise networks with routers and switches ...

As important as Spanning Tree has been to the acceptance and spread of Ethernet, making it possible to link Ethernet segments without creating loops and packet storms, its inventor, Radia Perlman, ...

I've been configuring VLANs on our network, and have run into a bit of a problem. So far I have a 3com 3950 which is a layer 3 switch, and 3com 4226 which i believe is only layer 2. Main network ...

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 ...