You get another 120 days. Is this annoying? Yes. Is it ethical? It violates the "spirit" of the license, but it is technically within the product's functionality (reinstallation for disaster recovery). Microsoft cannot audit you for reinstalling your server.
Net-boot entire networks of thin clients using Linux servers.
Windows Server Remote Desktop Services CALs are licenses that grant users or devices access to a Windows Server RDS environment. There are two types of CALs: User CALs and Device CALs. User CALs are assigned to a specific user and allow them to access the RDS environment from any device. Device CALs, on the other hand, are assigned to a specific device and allow any user to access the RDS environment from that device.
Licenses are assigned to specific users in Active Directory. The licensing server tracks these but historically does not hard-block connections in the same strict manner as device licenses. Why "Updated RDS CAL Cracks" Do Not Exist Safely