this post was submitted on 10 Sep 2023
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To mitigate the effort to maintain my personal server, I am considering to only expose ssh port to the outside and use its socks proxy to reach other services. is Portknocking enough to reduce surface of attack to the minimum?

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[–] [email protected] 20 points 1 year ago* (last edited 1 year ago) (1 children)

You're making it that much easier for someone to brute force logging in or to exploit a known vulnerability. If you have a separate root password (which you should) an attacker needs to get through two passwords to do anything privileged.

This has been considered an accepted best practice for 20+ years and there's little reason not to do it anyways. You shouldn't be running things as root directly regardless.

[–] [email protected] -4 points 1 year ago (1 children)

When you have secure passwords kr key auth. Brute force is not a problem. What vulnerability are you talking about? Complete auth bypass? Then the username would be no problem either since you can just brute force usernames.

[–] [email protected] 2 points 1 year ago

Heartbleed was a thing that happened.