ZDNet

How to manage your Linux firewall the easy way - without touching the terminal

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 ...
ZDNet

How to add a GUI for your Ubuntu firewall (and why you should)

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TechRepublic

How to use FreeRADIUS for SSH authentication

Jack Wallen shows you how to install and configure FreeRADIUS as a centralized SSH authentication tool. You might have a large number of Linux machines in your data center, most of which are managed ...
Hackaday

Linux Fu: UPNP A Port Mapping Odyssey

If you’ve ever run a game server or used BitTorrent, you probably know that life is easier if your router supports UPnP ...