php.net 2 Factor jump server configuration

1. Get someone to add your public key to the jump server and the 
   servers you need access to.

2. Install Google Authenticator on an ios or android device

3. ssh -p 9022 americas.jump.php.net
   google-authenticator
   (you can answer y to all the questions, but you don't have to)

4. Add this to your .ssh/config on your local machine:

     Host git.php.net americas.jump.php.net europe.jump.php.net
     ProxyCommand none
     Host *.php.net
     ProxyCommand nohup ssh -p 9022 americas.jump.php.net nc -w1 %h %p 

5. Now when you ssh to a php.net server it will first check your
   public key and if that matches it will ask you for your
   Google Authenticator (GA) code. Type in this code from your GA app

   Success!?


Note: If you are in Europe we have europe.jump.php.net which might work
better for you once your account gets cloned to there.

Tip, you can tell ssh to use a php-specific key for php-related things
by adding something like this to your Host *.php.net section:

   IdentityFile /Users/bjori/.ssh/php_id_rsa