Set up SSH on a headless server on your LAN.
Installation
pacman -S openssh
Setup
Add a user and network specific rules to sshd config at /etc/ssh/sshd_config. Also search for user specific auth files.
AllowUsers web
Match 192.168.0.*
AllowUsers web root
PermitRootLogin yes
Match all
...
AuthorizedKeysFile .ssh/%u_authorized_keys
...
And enable the sshd service.
systemctl enable sshd.service && systemctl start sshd.service
We also need a public/private key pair to SSH in with. So we create a keypair with ssh_keygen for each user and place the appropriate .pub key in /home/<user name>/.ssh/<user name>_authorized_keys on the server.
We copy the private part of the key to ~/.ssh/<key name> on whatever machine we are logging in from. It can help to have a ~/.ssh/config file to manage different keys for different machines we want to log in to.
My ~/.ssh/config looks like this [2] [3]:
Match Host 192.168.0.<val> User root
IdentityFile ~/.ssh/<root ssh private key file>
Match Host 192.168.0.<val> User user
IdentityFile ~/.ssh/<user ssh private key file>
You'll also need to make sure that the private keys on your login machine needs chmod 600 <private key>.
Et voila, you're done. You should have a machine you can SSH into on your local network.