Hi, EPP server is a software that lets registrars communicate with registries for domain operations. To install an EPP server, you need a server with minimum requirements, a SSL certificate, and an EPP server software. You can use open source or commercial software. You need to follow the instructions to install the software. You might also need to set up some databases, firewalls, logs, etc. You might also need to test the software.
If you need more help, you can contact some experts or check some online resources on EPP servers.