I'm trying to run the two license servers and vendor daemons on same machine to restrict who gets access to which licenses. How can I do this?

You can not run two same vendor daemon instances and license servers on the same machine. Being able to do so, would enable users to double the number of licenses.

In order to set restrictions without starting two license servers, please configure the options file. Options file - a configuration file available on the license server, which license administrators can use to allow / deny / reserve products to be used by specific users, hosts, and groups.

Instructions how to create and manage the options file for license server is described in the Flexnet License Administration Guide at https://docs.nomagic.com/display/NMDOC/FlexNet+license+server+installation+and+licensing?preview=/62891142/62891197/fnp_LicAdmin_11_17_0.pdf