IT/Software/Command Line Applications/ssh

Basics

ssh is a massive tool in itself

BUT its biggest benefit is providing direct access to the terminal on other computers.

Secondly it provides a tunnel that many things can use

• NoMachine can use it and get a secure connection without paying for Enterprise
• FileZilla uses it for secure ftp
• rsync uses it with the -e ssh option.

Keys

If you connect often to another machine you may want to exchange keys for passwordless access

• Create the key on your computer
  • Just keep hitting enter throughout the process
  • Do NOT sudo ssh-keygen

ssh-keygen

• Copy the key to the remote computer.

ssh-copy-id -i ~/.ssh/id_rsa.pub user@hostname

• Now you can login with no password

ssh user@hostname