Sandal6823@sh.itjust.works to Linux@lemmy.ml · edit-25か月前Why disable ssh login with root on a server if I only log in with keys, not password?message-squaremessage-square78fedilinkarrow-up1104arrow-down15file-text
arrow-up199arrow-down1message-squareWhy disable ssh login with root on a server if I only log in with keys, not password?Sandal6823@sh.itjust.works to Linux@lemmy.ml · edit-25か月前message-square78fedilinkfile-text
On a server I have a public key auth only for root account. Is there any point of logging in with a different account?
minus-squareSavvyWolf@pawb.sociallinkfedilinkEnglisharrow-up1arrow-down1·5か月前I don’t think that actually works; the attacker could just remove .bashrc and create a new file with the same name.
minus-square2ndSkin@sh.itjust.workslinkfedilinkarrow-up6arrow-down2·5か月前If the .bashrc is immutable, the attacker can’t remove it. That’s how it works.
minus-squareSavvyWolf@pawb.sociallinkfedilinkEnglisharrow-up2arrow-down2·5か月前The home directory would need to be immutable, not bashrc.
minus-square2ndSkin@sh.itjust.workslinkfedilinkarrow-up4·edit-25か月前? It’s .bashrc, not bashrc, and .bashrc is in the home directory. If .bashrc is immutable, it can’t be removed from home.
minus-squareSavvyWolf@pawb.sociallinkfedilinkEnglisharrow-up1·5か月前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.
minus-squareWheelchairArtist@lemmy.worldlinkfedilinkarrow-up2arrow-down1·5か月前you’re right. that’s something i wanted to look into. guess setfacl would do the trick?
minus-squareMagiilaro@feddit.orglinkfedilinkarrow-up2·5か月前“chattr +i” is what I use to make things immutable
I don’t think that actually works; the attacker could just remove .bashrc and create a new file with the same name.
If the .bashrc is immutable, the attacker can’t remove it.
That’s how it works.
The home directory would need to be immutable, not bashrc.
?
It’s .bashrc, not bashrc, and .bashrc is in the home directory.
If .bashrc is immutable, it can’t be removed from home.
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.
you’re right. that’s something i wanted to look into. guess setfacl would do the trick?
“chattr +i” is what I use to make things immutable
thanks
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