...
With the implementation of a current, supported, hardware and operating system and adherence to Rice security guidelines, RUF users will notice a few differences from the old, kennel.ruf.rice.edu system.
Key differences on the new server, organization:
...
The old, insecure access FTP that was on kennel.ruf is not allowed under current Rice security guidelines. Those users who ftp files and web pages to their organization.rice.edu personal or organizational accounts will need to use some SFTP access client (not FTPS; i.e; FTP over SSL/TLS ). Organization.rice.edu only supports 256-bit encryption algorithms. Check your favorite SFTP client; its default setting may be for a 128-bit algorithm. FTP access (to port 21) will be denied, SFTP access (to port 22) will be accepted.
...