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.
No matter what OS you use, you need to think about security. But what happens when you don’t have time to think? Turn to Ars! We’ve got you covered with five freeware or shareware security tools for ...
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