Hi Irosenth,
In 'License & Compliance Services' document provided by Adobe, they specified as
For server use, installing desktop licenses in a server based environment is generally allowed,
so long as the total number of users, (not concurrent users) who can access the software
deployed on that server, do not exceed the Permitted Number of licenses. Usage is defined as
individuals or entities who “use, download, copy OR otherwise benefit” from the
functionality of the Software installed on the server.