You may have heard horror stories about how easy it is for evil system crackers to probe potential victims' systems for vulnerabilities using software tools readily available on the Internet. The bad ...

I recently was exchanging e-mail with someone who regularly needs to port scan his own network for vulnerability trending. The port scanning tool of choice for this task is Nmap, but managing the data ...

In recent times, the security aspect of information technology has received considerable attention, and large organizations have dedicated security teams to keep tabs on vulnerabilities in their ...

Linux systems provide a lot of useful commands for reviewing network configuration and connections. Here's a look at a few, including ifquery, ifup, ifdown and ifconfig. There are a lot of commands ...