 It uses a combination of Fedora, 389 Directory Server, MIT Kerberos, NTP, DNS, the DogTag certificate system, SSSD and other free/open-source components.FreeIPA includes extensible management interfaces (CLI, Web UI, XMLRPC and JSONRPC API) and Python SDK for the integrated CA, and BIND with a custom plugin for the integrated DNS server.Each of the major components of FreeIPA operates as a preexisting free/open-source project.