this post was submitted on 12 Apr 2025
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On a server I have a public key auth only for root account. Is there any point of logging in with a different account?

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[–] [email protected] 0 points 1 month ago (2 children)

I don't think that actually works; the attacker could just remove .bashrc and create a new file with the same name.

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

If the .bashrc is immutable, the attacker can't remove it.
That's how it works.

[–] [email protected] 0 points 1 month ago (1 children)

The home directory would need to be immutable, not bashrc.

[–] [email protected] 4 points 1 month ago* (last edited 1 month ago) (1 children)

?

It's .bashrc, not bashrc, and .bashrc is in the home directory.
If .bashrc is immutable, it can't be removed from home.

[–] [email protected] 1 points 1 month ago

It's the directory that needs to be writable to delete files, not the file itself.

Although the immutable bit (if that's what you're talking about - I thought you meant unsetting the write bit) might change that, I'm not sure.

[–] [email protected] 1 points 1 month ago (1 children)

you're right. that's something i wanted to look into. guess setfacl would do the trick?

[–] [email protected] 2 points 1 month ago (1 children)

"chattr +i" is what I use to make things immutable

[–] [email protected] 2 points 1 month ago (1 children)