Configuring SSH Key authentication for your AMP user

This tutorial assumes you're on a Windows computer with the PuTTY SSH client installed, connecting to a Linux server running AMP, and it assumes you correctly followed the AMP install guide and have a Linux system user called AMP.

• Open up PuTTYgen (PuTTY Key Generator)
• Click Generate
• Move your mouse for a moment over the blank area
• Click "Save private key", click "Yes" when asked to save the file without a passphrase and save the file somewhere you can find it
• Be warned, this file must be kept safe - anyone who can access it can access your server!
• Open up an SSH session to your server, and login as the AMP user. If you cannot login as the AMP user then login as root and run su -l AMP
• Run the following commands:

mkdir .ssh
cd .ssh
touch authorized_keys
chmod 644 authorized_keys
cat > authorized_keys

• In PuTTYGen, select the public key (right click -> select all)
• Select the PuTTY window to your server and right click once in the window (nothing will appear to happen)
• Press CTRL+D and you'll be returned to the prompt
• Close your SSH session
• Re-open PuTTY, and under Connection -> SSH -> Auth, pick "Private key file for authentication" and select the key file that was saved earlier from PuTTY gen
• You should connect immedaiately