SSH connections to NAF

On most computers used in computing-heavy research, a Unix type operating system is used.

A reason why many researchers prefer using a MacBook or a computer with one of the many options for a Unix/Linux based operating system, is that they can also develop their analysis software locally.

They can also connect with a computing node of the DESY computing centre, the NAF (national analysis facility) using the command line and the ssh command.

Read more here to learn about what ssh is and can provide for you:

What is SSH and how do I use it?Information Services Division

However, also users of Windows computers can connect with such a computing node, using applications such as putty:

PuTTY: a free SSH and Telnet clientwww.chiark.greenend.org.uk

Modern versions of the Windows operating system, such as Windows 10, also provide a native ssh client. It is even possible to install a linux subsystem on Windows 11: https://docs.microsoft.com/en-us/windows/wsl/install

Alternatively, you can use the jupyter instance on DESY NAF with a web-browser and start a new terminal there (although as a long-term solution, a dedicated ssh client is a better solution):

https://naf-jhub.desy.de/naf-jhub.desy.de

You can connect with NAF using the following command using ssh

ssh [e-mail]

With putty, you can use the following configuration:

• Host Name: naf-atlas.desy.de

• Login protocol: SSH

The username in the prompt when connecting is your DESY username and the password the associated password.

More documentation is provided here:

DESY - IT - Computing Infrastructureconfluence.desy.de

Getting started with PuTTYthe.earth.li