Homelab

ArchLinux Configuration

I've installed cockpit, which turns out to be a fantastic tool¹, I still want to setup ssh so that I can use TRAMP to edit files remotely. Also, I will probably uninstall cockpit because what I need can be achieved via ssh.

I'm even thinking about running an Emacs daemon on the server and see how feasible it is to use that for certain things.

Add a non-root user

By default sshd doesn't allow root to do a password login via ssh. Also, it's always a good idea to create a separate user for regular adminstration.

sudo useradd -m john

and set the password

passwd john

Copy ssh key to the server

Nobody uses password login to ssh. Nobody should. So let's copy the ssh key.

ssh-copy-id john@<ip>

Sudo

Install vim (or vi) to edit the sudoers file.

EDITOR=vim visudo

Scroll down to the bottom of the file and grant all permissions to this guy:

john ALL=(ALL:ALL) ALL

Close the file with :wq.

If using docker

Add the user to docker group

gpasswd -a john <group>

Keep it on when the lid is closed

It's possible to change the behaviour by setting the ACPI event action which is managed by logind, a systemd native service². Edit the logind.conf file:

vim /etc/systemd/logind.conf

Find the HandleLidSwitch event handler and set the action to ignore.

HandleLidSwitch=ignore

Then restart logind:

systemctl kill -s HUP systemd-logind

Works like a charm!