3. Prerequisites
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## 3. Prerequisites

To build an internal FreeBSD Update Server some requirements should be met.

- A running FreeBSD system.

  ### Note:

  At a minimum, updates require building on a FreeBSD release greater than or equal to the target release version for distribution.

- A user account with at least 4 GB of available space. This will allow the creation of updates for 7.1 and 7.2, but the exact space requirements may change from version to version.

- An ssh(1) account on a remote machine to upload distributed updates.

- A web server, like Apache, with over half of the space required for the build. For instance, test builds for 7.1 and 7.2 consume a total amount of 4 GB, and the webserver space needed to distribute these updates is 2.6 GB.

- Basic knowledge of shell scripting with Bourne shell, sh(1).

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