Uploaded April 2021 | Updated September 2026, 1 week ago

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Do you have a linux server and do you know how to prevent getting hacked? In this video we will critically discuss a few best practices. The video can be summarized as: "a lot of fluff, not much use".

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Prefer to read? Blog article version: liveoverflow.com/protect-linux-server-from-hackers

Very scientific analysis: docs.google.com/spreadsheets/d/1cKaO7qH3EZbrEJR7F5Df0ObvJOhw3RdOMCERuroWrBc

Other Opinions:
- Enable unattended updates: blog.filippo.io/psa-enable-automatic-updates-please

CHAPTERS
00:00 - Intro and Motivation
01:47 - 1. Disable SSH Password Login
03:47 - Detour: Password Login for Websites (https)
04:39 - Password Recommendations
05:33 - 2. Disable Direct root SSH Login
07:07 - Creating user and add to sudo
08:47 - 3. Change Default SSH Port
10:42 - 4. Disable IPv6 for SSH
13:40 - 5. Setup a Basic Firewall
15:43 - 6. Unattended Server Auto Upgrade
19:04 - Conclusion

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