Proxmox - Grant SSH Access to a LXC Container

Use case: When I'm unable to SSH into a proxmox container from my machine.

1. Identify: First, find the container’s ID or name. Replace {{num}} with the appropriate container identifier in the following commands.

lxc-attach --name {{num}}

2. Edit: Once inside the container, open the SSH configuration file with a text editor.

nano /etc/ssh/sshd_config

3. Locate the line PermitRootLogin without-password and update it to:

PermitRootLogin yes

4. Restart ssh service

service ssh restart