Selfhosted

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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

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What are common practice's for hardening/securing your server? (feddit.de)

submitted 5 months ago by [email protected] to c/[email protected]

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[–] [email protected] 53 points 5 months ago (3 children)

Setup Fail2ban

Disable passwords, x11 forwarding, root logins

Reduce Idle timeout interval

Limit users' SSH access

That should be more than enough for the average use case.

[–] [email protected] 12 points 5 months ago

Regular updates are definitely necessary too. Also, if you do limit SSH users to a chroot make sure you limit TCP (port) forwarding too.

[–] [email protected] 4 points 5 months ago

Containers can help lock services down if you do it right.

[–] [email protected] 3 points 5 months ago (1 children)

You can have 2FA on ssh?

[–] [email protected] 1 points 5 months ago (1 children)

Yep. Use SSH keys, not just protocol.

On connection, it'll ask for your SSH password (this is different from the users password).

After that with something like authelia in place, you'll be asked for a 2fa code.

[–] [email protected] 0 points 5 months ago (2 children)

So, no. SSH can't do 2FA? I would need to set up Authelia and connect through that? I already use ssh keys instead of passwords to connect to my server

[–] [email protected] 1 points 5 months ago (1 children)

Yes it can. I literally have it set up right now.

When I connect to my vps I am promoted for the password for my SSH key. Only works on a machine that has the ssh key.

Then I need to use 2fa.

[–] [email protected] 1 points 5 months ago

Ah, so it the asks for the TOTP provided by Authelia? I misunderstood, sorry. That's pretty cool. Do you maybe still have the guide you used to set that up?

[–] [email protected] 1 points 5 months ago

It is possible to have 2FA with a security key and ssh. Been on my to do list for some time to try it.