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# You can test that your local key works by entering ssh -T git@github.com in the terminal:

ssh -T git@github.com
# Attempt to SSH in to github
Hi username! You've successfully authenticated, but GitHub does not provide shell access.

ssh-keygen -t rsa

ssh-copy-id user@host

#Alternatively, you can paste in the keys using SSH:
cat ~/.ssh/id_rsa.pub | ssh user@host "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"

# To verify that ssh-agent is running on your computer, type the following command in the terminal:
echo "$SSH_AUTH_SOCK"

# Print out the SSH_AUTH_SOCK variable
/tmp/launch-kNSlgU/Listeners

ssh-add -L

ssh-add ~/.ssh/id_rsa

# On Mac OS X, ssh-agent will "forget" this key, once it gets restarted during reboots.
# But you can import your SSH keys into Keychain using this command: 
/usr/bin/ssh-add -K yourkey

Host rds.tunnel
  HostName sa.relational.com.au
  Port 22222
  User keith.lin
  LocalForward 1521 sailis-db-1d:1521

Host example.com
  ForwardAgent yes