Computers can communicate over networks. (Surprise!) That’s how you’re reading this post. The machine that this site is hosted on is listening for requests for connection. When it receives a request it answers back with a web page. In fact, computers can listen for a great many different kinds of connection at the same time. In networking we talk about a computer listening on a given “port”. The web server for this site (and most web sites) listens on what’s called port 80. There are 65535 possible network ports that a computer can listen for incoming connections on.
Tag: Network Security
-
Network Security guide for the home or small business network – preface
OK, this is an ambitious idea, but the two articles on Titan Rain and the lack of IT security training has planted a bug under the saddle so to speak…. I don’t know how many parts will be in this series. In fact, I may add to it from time to time even after an initial series. This is intended as a “crash course” in the essentials of network security. It’s aimed at the home users and managers of small networks (small business owners?) that haven’t thought about network security before and maybe will be a reference of some value even to those that are more intermediate. The essentials of network security will be covered in the first few posts.