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phone prefix: +49 351 463.....

HPC Support

Operation Status

Ulf Markwardt: 33640
Claudia Schmidt: 39833

Login and project application

Phone: 40000
Fax: 42328

You are here: Compendium » Login

Login to the High Performance Computers

The best way to login to the linux machines is via ssh. From a Linux console, the command syntax is ssh user@host. The additional option -XC enables X11 forwarding for graphical applications (the -C enables compression which usually improves usability in this case).

The following table gives an overview of all clusters.
Hostname Description BULL system - SLURM SGI Ultraviolet - LSF
Attention: For security reasons, this port is only accessible for hosts within the domains of TU Dresden. Guests from other research institutes can use either one of the central login servers or the VPN gateway of ZIH. Information on these topics can be found on our web pages

Access from a Windows workstation

We suggest Windows user to use MobaXTerm. ( see details here). The benefits of MobaXTerm are:
  • easy to use
  • file transfer via drag and drop
  • transfer of remote grafic to the local Windows PC

Access from a Linux workstation

SSH access

If your workstation is within the campus network, you can connect to the HPC login servers directly, e.g. for Taurus:
ssh <zih-login>

If you connect for the fist time, the client will ask you to verify the host by the fingerprint:
user@pc:~# ssh <zih-login>
The authenticity of host ' (' can't be established.
RSA key fingerprint is SHA256:HjpVeymTpk0rqoc8Yvyc8d9KXQ/p2K0R8TJ27aFnIL8.
Are you sure you want to continue connecting (yes/no)?

Compare this fingerprint with the fingerprints in the table below. If it match you can type "yes".

Host Fingerprint

SHA256:HjpVeymTpk0rqoc8Yvyc8d9KXQ/p2K0R8TJ27aFnIL8 (RSA)
SHA256:zqNn3k3c7ZRtT9vRXYzFY+CYP2zSt7NgRYeHrtROa2c (ECDSA)
SHA256:LIYMI7vVb6Bm5kBnvdiNq3SOsW3zTtDGpEavLgWQQ+A (ED25519)
MD5:ef:f7:d7:4f:13:cc:b0:3f:c3:51:13:03:99:30:73:29 (RSA)
MD5:5f:22:94:79:8b:d8:ee:e7:df:a9:1b:72:e7:58:10:3f (ECDSA)
MD5:f1:12:78:4e:06:26:fb:b4:0e:88:78:d4:a4:cd:97:5d (ED25519) - CURRENTLY NOT USABLE
SHA256:b+U78ZrTALitnkr1zsRtP5aG1YUCojRRar0HsmboYkw (RSA)
MD5:99:dc:2d:47:39:3f:b5:bb:32:5c:18:8f:a5:62:60:fa (RSA) SHA256:Qq1OrgSCTzgziKoop3a/pyVcypxRfPcZT7oUQ3V7E0E
You can find the fingerprints for the ZIH login gateways on the ZIH service catalogue page.

From outside the TUD campus network

If you want to connect to the cluster from outside the campus network, there are the following two ways.

1. Use VPN (virtual private network) to enter the campus network, which allows you to connect directly to the HPC login servers.

For more information on our VPN and how to set it up, please visit the corresponding ZIH service catalogue page.


2. Take an extra SSH hop over the ZIH login servers, which are accessible world-wide:
ssh -t <user> ssh

Note: don't confuse the ZIH login servers, which just act as gateway in this case, with the actual login servers of the HPC machines. The latter always end with "" in their domain name (as opposed to "").

SSHFS access via tunnel (only for small data*)

If you want to mount a directory from the Linux cluster on your Linux workstation, use the bottom code snippet.

ssh <user> -L -N &
sleep 1
sshfs -p 7777 <user>@ <path on which to mount the target>

*If you want to transfer bigger data, please use the taurus export nodes.