The operating system used on the Lengau cluster is CentOS 7.
To find the exact version — e.g., to check compatibility with software, etc. — you can run one of the following commands in the shell. Shown here with the output from the current system:
lsb_release -d Description: CentOS Linux release 7.3.1611 (Core)
cat /etc/centos-release CentOS Linux release 7.3.1611 (Core)
rpm -q centos-release centos-release-7-3.1611.el7.centos.x86_64
So we are currently running CentOS version 7.3 patch level 1611.