Jack Wallen shows you how to extend the flexibility of the CentOS 7 firewall with firewalld zones. Your firewall is a crucial component from preventing unwanted people from gaining access to your data ...

Linux is highly secure, but you should still have a firewall. You should know if your ISP's hardware (gateway) uses a firewall. One of the easiest Linux firewalls is UFW and its GUI sidekick, GUFW.

Linux firewalls can be very complicated. With the help of a GUI, firewall configuration is easier. These GUIs are easy to install and free to use. A firewall is often the heart and soul of desktop ...