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1. Download Putty . If you download the individual binaries, you will need both "putty" and "puttygen" .
2. Start your X11 server. We recommend XMing .
3. Use PUTTYGen to convert your ssh private key to a Putty key (from a .pem key to a .ppk)
   1. Open PUTTYgen
   2. Click "Conversions" and then click "import key"
   3. Find the key file sent to you by CNF Computing, select the key file, and click "Open"
   4. Click "Save private key" to save the key as a Putty key file (.ppk)
4. Run Putty
   1. Go to Connection - SSH - Auth
   2. On the right where it says "Private key file for authentication", browse to the key you created with PUTTYgen.
   3. Go to Connection - SSH - X11 and check "Enable X11 forwarding"
   4. Go to Session, and for the Host Name, type in the ip address of the remote AWS computer.
   5. Click "Open".
   6. When prompted, enter in your AWS username. You will not be prompted for a password.

Using VNC for Better Graphical Performance and Redundancy

Running your session inside of VNC has two major advantages over just forwarding your application displays over X11:

1. Better graphical performance – some applications, especially NetBeans, will not run very well unless run inside a VNC session.
2. If your connection to the AWS server is interrupted, your applications are still there. Just reconnect and pick up where you left off.

Initial VNC Setup

1. Login to the remote AWS server.

2. Set your separate VNC password with the following command:
   
   

   Code Block
   language bash
   vncpasswd

   Do not set a View Only password.

3. Start your VNC server with the following command:
   
   

   Code Block
   language bash
   vncserver

   Make note of the display number output from the above command.

Transferring Files

The lab transfer share is mounted as /cnflab , the same as on the CNF Conversion Computers and CNF Thin computers. Keep in mind disk space is limited on the Lab Transfer Share – do not use this share for large files. Instead, use SFTP to transfer files from any computer on the CNF network to the AWS conversion cloud. From the AWS conversion cloud, you can SFTP out to remote.cnf.cornell.edu or to jeol9500.cnf.cornell.edu for the JEOL9500 .

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