Setting up Sudo (Subusers) for SSH Access
When setting up a new server and a client asks for SSH access, this is
the process to add a subuser for SSH so that we don't have to give up
the root password and risk getting it changed.
1. Edit /etc/sudoers (i.e. nano /etc/sudoers)
2. Insert something similar to the following:
username ALL=(ALL) ALL
under where it says:
root ALL=(ALL) ALL
3. Save the file.
4. Test the newly created user access ACL (sudo su - from the user account level).