Login nodes / WGS (work group server)¶
Usually, the first point of contact with the NAF is a login session. You can e.g. connect using SSH. From outside of DESY network, you will need a second factor, in addition to your password. More information on obtaining and configuring your second factor can be found at https://it.desy.de/services/mfa/index_eng.html
The login nodes have mostly the same configuration as the batch nodes - in terms of available data, software and operation system. On purpose, the hardware resources allocated are smaller, though, since they should only be used for interactive development, small tests, and steering large batch submissions.
Below is a list of login nodes. Usually, your best choice is to use the load balanced alias, e.g.: naf-atlas.desy.de naf-belle.desy.de naf-cms.desy.de or the like (following the scheme naf-<VO>.desy.de).
Usage of WGS Be reasonable when you use the WGS as you are sharing the resources with your colleagues and any (mis)use will affect them. So, please be careful and nice to your colleagues. As a rule of thumb, use the WGS for development, short (eg < 10 min) test jobs, graphical things, ... Do not use the WGS for longer lasting processes, or processes that do not require interactive return. Such processes are best placed onto the batch system - which has much more resources and resource control mechanisms. We check WGS on a daily basis, and if we find long running jobs or jobs consuming huge amounts of memory, we write an automated email. We have to reboot systems to activate new kernels. Using load balancing and alias mechanisms, we try hard to keep logins alive for at least one week. Sometimes we must act faster, though.
List of current NAF login nodes
use the alias 'naf-<VO>.desy.de' whenever possible
naf-school01.desy.de
naf-school02.desy.de
naf-school04.desy.de
naf-school03.desy.de
naf-cms14.desy.de
naf-atlas17.desy.de
naf-hone22.desy.de
naf-hone21.desy.de
naf-atlas15.desy.de
naf-atlas14.desy.de
naf-cms15.desy.de
naf-cms16.desy.de
naf-cms13.desy.de
naf-school06.desy.de
naf-atlas16.desy.de
naf-zeus21.desy.de
naf-belle22.desy.de
naf-cms30.desy.de
naf-cms20.desy.de
naf-cms24.desy.de
naf-cms22.desy.de
naf-cms23.desy.de
naf-cms21.desy.de
naf-atlas11.desy.de
naf-cms11.desy.de
naf-belle21.desy.de
naf-ilc21.desy.de
naf-atlas12.desy.de
naf-cms12.desy.de
naf-neutrino21.desy.de
naf-astro21.desy.de
naf-it21.desy.de
naf-it22.desy.de
naf-it23.desy.de
naf-it24.desy.de
naf-atlas-gpu01.desy.de
naf-cms-gpu01.desy.de
naf-ilc-gpu01.desy.de
naf-belle-gpu01.desy.de
naf-hermes-el7.desy.de
naf-zeus22.desy.de
naf-theo21.desy.de
naf-theo22.desy.de
naf-neutrino22.desy.de
naf-iaxo21.desy.de
naf-iaxo22.desy.de
naf-luxe21.desy.de
naf-atlas13.desy.de
naf-luxe22.desy.de
naf-cms17.desy.de
naf-cms18.desy.de
naf-school05.desy.de
naf-atlas21.desy.de
naf-it01.desy.de
naf-ilc22.desy.de
naf-xfitter.desy.de
naf-alps21.desy.de
naf-alps22.desy.de
naf-m21.desy.de
naf-m22.desy.de
naf-alps-el9.desy.de
naf-ilc-el9.desy.de
naf-fhlabs01.desy.de
punch-htc-head-prod02.desy.de
naf-school-fastx3.desy.de
naf-madmax21.desy.de
naf-madmax22.desy.de
naf-cms-el8.desy.de
naf-hermes21.desy.de
naf-dot01.desy.de