Setup ssh connection on Ubuntu

Install necessary packages:

Host:

sudo apt-get update
sudo apt-get install openssh-server
sudo ufw allow 22

Client:

sudo apt-get install openssh-client

Connect usage:

ssh username@host




Advanced:

On the client side, create the host alias for ssh. Edit ~/.ssh/config, then copy the below pattern to the config file

Host workstation

HostName 10.70.70.44

User darrenl

Port 22

Then, we can simply the usage to connect to host

ssh workstation

Copy the public key to remote host using ssh-copy-id, thus, we didn't need to type password every time

ssh-copy-id -i ~/.ssh/id_rsa.pub remote-host

-