This article describes building an internal FreeBSD Update Server. The freebsd-update-server software is written by Colin Percival <cperciva@FreeBSD.org>, Security Officer Emeritus of FreeBSD. For users that think it is convenient to update their systems against an official update server, building their own FreeBSD Update Server may help to extend its functionality by supporting manually-tweaked FreeBSD releases or by providing a local mirror that will allow faster updates for a number of machines.