Notes from Jay's 1.5 Hour SSH Lesson

ssh.md

SSH Commands

To connect to a server, use the SSH command, along with the server user and IP address

ssh username@12.34.56

To generate a SSH key, use the ssh-keygen command

ssh-keygen

There are two ways to add your SSH Key to your remote server

Method #1

• Go to your remote server
• Go to your .ssh directory, which is likely in your home directory. Create it if it doesn't exist
  • cd ~/.ssh
• Create a file named authorized_keys there within
• Paste your public key that will be used to connect to that server. The private key stays in your server/machine
• Restart your connection

Method #2

• The second, and more effecient way is by using the ssh-copy-id command
• ssh-copy-id -i ~/.ssh/my_key.pub username@12.34.56
• in this command we use the -i flag to specify the public key we want to add to our remote server
• the next part of the command is the path to the public key
• and the final part is the remote server in which we want the public key to be added
• this yields the same exact result as method #1 (you will see an authorized_keys file with your public key within)