Yes, we support installing our licensing software on Linux servers. Also note that once installed on a server, Linux of otherwise, this system can then serve licenses to any other nodes connected to the same network irrespective of whether they are also Linux boxes or not (meaning they could be workstations or laptops with Windows versions of NX installed).
John R. Baker, P.E.
Product 'Evangelist'
NX Design
Siemens PLM Software Inc.
Cypress, CA