An SSH workflow that's easier on your brain

1.sh-session

# List all information about the config file, under the ssh/ directory
adrian@zen ~/D/blog> ls -al ~/.ssh/config
-rw-r--r--  1 adrian  staff  210 Mar  1 13:59 /Users/adrian/.ssh/config

# If you get "No such file or directory [...]", run the command below
adrian@zen ~/D/blog> touch ~/.ssh/config

# Check again, to see if the file has been properly created
adrian@zen ~/D/blog> ls -al ~/.ssh/config
-rw-r--r--  1 adrian  staff  0 Mar  1 17:12 /Users/adrian/.ssh/config

2.sh-session

Host remote-machine                       # The shorter name you will use with the ssh command
  HostName 192.168.33.10                  # The machine's IP address or hostname
  User adrian                             # Your username on the machine
  IdentityFile ~/.ssh/remote_machine.key  # If you don't want to type the password every time, get one of these
  RemoteForward 5858 5858                 # Port forwarding (for tunnelling) - I use it for NodeJS remote debug
  ForwardAgent yes                        # Forward the ssh key to machines that you connect to from the remote machine

3.sh-session

# This is my git server
Host git
  HostName 192.168.33.10
  User adrian
  IdentityFile ~/.ssh/git_server.key

# I use this to connect to other machines on the same network
# hence, I'm forwarding my connection to the authentication agent
Host manager
  HostName 192.168.38.1
  User root
  IdentityFile ~/.ssh/manager.key
  ForwardAgent yes

# Forwarding port 5858 to localhost for remote debugging  
Host nodejs
  HostName 192.168.33.11
  User adrian
  IdentityFile ~/.ssh/nodejs.key
  RemoteForward 5858 5858
  
Host db
  HostName 192.168.33.12
  User root
  IdentityFile ~/.ssh/db.key