An easy cross platform way of determining the correct hostid for your system is to use our license tools.

Once you have extracted the tools you will need to open a command prompt/terminal and run

For Linux/macOS:

rlmutil rlmhostid ether

For Windows:

rlmutil rlmhostid -q ether

on the server that will host the licenses (for floating licenses) or the local workstation where the software will be used (for node locked licenses).

This will return a 12 digit hexidecimal value (which is the hostid) that looks like:

b39d476c3e78