Ubuntu 18 commands

Ubuntu

Networking file

Ubuntu 18
user@ubuntu: /etc/netplan/01-netcfg.yaml
Ubuntu 16
(different path)

Change user
su usernameX

find Ip address 
hostname -I

List all installed
apt list --installed

disable password login
edit file /etc/ssh/sshd_config
replace line with
PasswordAuthentication no

Restart your ssh server using
sudo service ssh restart [or] sudo restart ssh

 List block (list drives)
lsblk

History (list of commands used earlier)
history


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