Network Security has become an important part of today's IT staffs. However, there is a small part of it that needs to be a part of everybody's understanding that works with computers that attach to the Internet. I will review some basic ways to inventory your systems externally. Basically, this will allow you to become more informed while enabling you to check on the work that your network administrator performs.
Networking openings are the most obvious way that external agents can get into your system. Here's an overview on how to check your systems for openings from a different machine on a network. In fact, you can check any machine (or the firewall that protects them) on the Internet. This will let you know how concerned you should be about new security leaks and which software patches may apply to your network.
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