NOTE: You must be on the UB or Roswell Park networks to connect to CCR servers.  If you are off-campus, please use the UB VPN to connect

Access to most CCR servers is only available through SSH.  Users must install a SSH client on their computers.

Command line SSH client:

Windows users can download PuTTY for command-line access to the CCR servers. For graphics rendering, users can download Xming and use this in conjunction with PuTTY. Instructions for connecting using a PuTTY and Xming combination are available here (Note: use the connection information below in lieu of ""). 

To check that the putty/xming combination is working correctly: launch a putty terminal after separately launching xming as a background task. Now type "xeyes" from the putty terminal. If you get a display error, it's not working. If a set of eyes that tracks the movement of your mouse pops up then you know it's working properly.

Connection information

hostname: (academic cluster) (industry cluster) (for uploading/downloading data to/from CCR filesystems only) - requires SSH keys to connect (see here for more details)


UB username

port (specify in Filezilla):


Displaying Graphics:

See this knowledge base article for more details on displaying graphics

File Transfer:

Both FileZilla and WinSCP provide a secure file transfer using a drag and drop interface.  

  • Download and install FileZilla or WinSCP
  • See connection information above

For users with a large amount of data to transfer:  please use the data transfer server is:

Using this server requires the use of SSH keys.  Please see this knowledgebase article for more details

NOTE: The data transfer server is not to be used for compiling code or submitting jobs to the cluster.  If you have modules sourced in your login files, you will get an error message when you login as modules are not supported on the data transfer server.