Public Access Linux
The PAL is workgroup server cluster for public access to Linux at DESY. It can be used for interactive work, to test the compilation of your code on different operating systems, ...
Currently, there are three options available
pal-sld5.desy.de : ScientificL inux 5 (64bit)
pal-sld6.desy.de : Scientific Linux 6 (currently aliased to pal.desy.de)
paul.desy.de : Cluster with Ubuntu (currently 14.04)
More information on the PAL: DESY IT website