Dear readers, I appear to have set a Paranoid Penguin record—six months spent on one article series. (It has consisted of five installments, with a one-month break between the second and third pieces.

How to configure SSH to use a non-standard port with SELinux set to enforcing Your email has been sent Switching the SSH listening port is an easy way to help secure remote login on your Linux servers ...

Need a dedicated firewall appliance? OPNsense is a free, open-source solution, ready to protect your network from intrusion. The protection of your network is one of the most important jobs in the ...

Linksys routers are designed to enable multiple devices to connect to the Internet at one time, but they often offer additional features as well. Some routers include a built-in firewall that protects ...