"Protect your computer against malware attacks
Configure a firewall to keep attackers out
Back up important files and recover files after a successful
Install updates to your operating system and other software
Password-protect the bootloader
After completing this tutorial, you will be able to harden your
GNU/Linux desktop and prevent attacks against your computer and its
data. You will be able to install and configure software to help
protect your desktop against malware that can give an attacker
access to your computer. You will also be able to use a firewall to
protect against inbound and outbound traffic, back up and restore
your data, and apply other tricks that further harden your
system." free registration required--ed.
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