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Any feedback from port knockers ?
(en.m.wikipedia.org)
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this post was submitted on 10 Sep 2023
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Bots do not matter. They try just common know exploits. If your root password is not root you are fine.
Root login should be disabled, and ideally remote user auth should be key only, not password. And you should have a passphrase on your key.
Why? Dont recite a blogpost to me explain it. Following blindly security practices you do not understqnd can be very dangerous.
Disableing the root login gains nothing in regarding security. If you have a secure key or a passwordthey attacker will not get in no matter what. And once a account is compromised it ia trivial to extract the sudo passwors with simple aliases.
Passwords can be as secure as keys. Yes be default a weak key is still more secure then a weak passwors. But if you have a strong password policy in place it does not matter. Most valid argument for keys is the ease of you
Having a passphrase on the key is for example for my usecase irrelevant. I run full disk encryption on every device. A passphrase on those keys would not gain me much security only more inconvenience.
This is usually not the reason people recommend disabling root login. Since root is an anonymous account not tied to an actual person, in a corporate setting, you do not really know who used that account if you allow root login. If this is relevant for a personal home network is for you to decide. I would say there is not such a strong argument for it to be made in that setting.
I absolutely agree with your. It can makes sence the disable it for access control, loging, auditing, etc. .
But when you look online or just in the comment section here lots of ppl actually recommend it as a security meassure against attackers. "Need to brute force the username as well"