Connecting to NERSC

All NERSC computers (except HPSS) are reached by use of programs that implement the Secure Shell (SSH) communication and encryption protocol, version 2, or by Grid tools that use trusted certificates.

HPSS can be accessed securely with ftp or hsi, via the use of encrypted tokens. Please see the HPSS pages for a description of this procedure.

For security reasons, all network ports into NERSC systems are blocked, except for those running SSH or Grid services (a side effect of this is that ftp "tunneling" is not available for file transfers). If you have a need for incoming port access, please use this form, or contact NERSC consulting.

Contents

• Passwords
• Computer Hostnames
• SSH Description
• UNIX
• PCs and Macs
• Troubleshooting
• File Transfers
• X-Windows
• Terminal Types
• Firewalls
• Grid Computing at NERSC