### Create new sudo account Ubuntu Server does this by default ``` sudo adduser {username} sudo usermod -aG sudo {username} ``` ### Disable root Ubuntu Server does this by default ``` sudo passwd -l root ``` ### Change HOSTNAME ``` sudo hostnamectl set-hostname {hostname} hostnamectl sudo nano /etc/hosts /* change hostname in hosts file */ ``` ### Copy Files and Folders to a Directory ``` cp -a /source/. /dest/ ``` -a preserves all file attributes . copies all files and folders including hidden ## Networking ### Network information ``` ifconfig -a ```