Bring your own license

In case you can install and run your software with your private license key on our systems you are just fine.
However, if you want to access a remote license server providing a cluster license (e.g. operated by your IT department) take the following steps:

1. Determine if you need to access your license server from our compute nodes, our login nodes, or both. Typically, production runs are executed only on compute nodes.
2. Check, that your relevant license server ports are accessible from 130.73.234.140 (exit node of all our compute nodes) and/or 130.73.234.[1-20] (our login nodes), respectively.
   Usually, you need to ask your local IT to open your license server to external access from these IPs and ports.
   Please configure the ports of your license server statically (see remark *).
3. Send a mail to support@nhr.zib.de including the name (FQDN), IP, and ports of your license server.
   In case your license server is inside a subnet, we also need to know the name/IP of its access point.
4. Wait for our reply, that the corresponding IP forwarding rules are activated in our firewall/gateway.
5. Test it (from our compute/login nodes):
   telnet your-license-server port
   This test ("Trying..") is positiv if the server answers:
   Escape character is '^]'.


*) FLEXlm license servers usually use two TCP ports ("SERVER" and "VENDOR"), and both of them need to be configured in the firewall/gateway. By default, the VENDOR port is dynamic (i.e. chosen randomly) and may change on restart of the license server. To remain accessible from our system, both SERVER and VENDOR ports need to be statically configured in the license server (VENDOR xyz port=1234). See also http://www.hlynes.com/2010/01/21/flexlm-license-servers-and-firewalls/