The Fedora Directory Server is an LDAP (Lightweight Directory Access Protocol) server developed by Red Hat, as part of Red Hat’s community-supported Fedora Project. Fedora Directory Server is identical to the Red Hat Directory Server, just rebranded. FDS is being built on top of Fedora, but supports many operating systems including Red Hat Enterprise Linux 3 and 4, Solaris 8 and later, and HP-UX 11i.