What is Snort? Bonus: How to Write Snort Rules!

Snort is an open-source, signature-based Network-based Intrusion Detection System (NIDS). Actually, Snort is much more than just a NIDS because it also acts a packet analyzer and a Network-based Intrusion Prevention System (NIPS). Snort was originally developed to be a packet analyzer, and with such sniffing capabilities, it can be used to detect intrusions on... Continue Reading →

Tips for Securing Your Network

Before I begin, let's address two obvious questions. Number one, what kind of network are we talking about here? I'm referring to a large or enterprise network. However, you can implement some of these security solutions on your home or SOHO network. Well, maybe you wouldn't want a network access enterprise server at your home.... Continue Reading →

Routers: Understanding The Basics

Routers   A router is a layer 3 (Network) device. Unlike hubs and switches that connect computers, servers, printers, or other peripheral systems together, a router connects networks together. Therefore, you can connect 2 or more LANs together and even connect two or more larger networks together in a WAN. There are several types of... Continue Reading →

Port Mirroring on Switches

Modern switches have a lot of cool, useful features that make these devices simple to manage, but perhaps, more difficult to configure. In my last post about switches, I mentioned I'd go into a little more detail about the features that switches have to offer. One of the first features I mentioned was "port mirroring."... Continue Reading →

Switches Are The Way to Go

A "switch" is a Layer 2 (Data Link) device that largely replaced hubs in the early days of networking. These days, it's hard to imagine any network tech installing a hub over a switch. The greatest benefit of a switch over a hub is that is has "intelligence," well, managed switches do, at least. Managed... Continue Reading →

Why We Don’t Use Hubs Anymore

Hubs might appear to be Layer 2 (Data Link) devices, and I wouldn't blame you if you thought of them as such; however, hubs are actually Layer 1 (Physical) devices. Hubs are, in a sense, "dumb." They are unintelligent devices that simply provide connectivity to several devices. A long time ago, we used hubs as... Continue Reading →


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