About the Mac OS X Server v10.6.5 Update

This software updates Mac OS X Server v10.6, v10.6.1, v10.6.2, v10.6.3, or v10.6.4 to v10.6.5.

This article has been archived and is no longer updated by Apple.

Important: Read before installing.

  • Do not interrupt the installation process. If a power outage or other interruption occurs during installation, use the standalone installer (see below) from Apple Support Downloads to update.
  • The Mac OS X Server v10.6.5 Combo Update overwrites the /etc/rc.server file. If you have previously made changes to this file, make a backup copy before updating. Any custom sysctl settings should be configured in /etc/sysctl.conf rather than /etc/rc.server. See man rc.server and the /etc/sysctl.conf.default file for details.
  • You may experience unexpected results if you have third-party system software modifications installed, or if you've modified the operating system through other means. (This does not apply to normal application software installation.)
  • This update can be installed on non-startup volumes, but you should only do this if the current startup volume has already been updated to Mac OS X Server v10.6.5. The simplest way to avoid issues from an improper installation is to start up from the volume that you wish to update.


There are three ways to update to Mac OS X Server version 10.6.5:

  • Use Software Update
  • Install from a standalone installer
  • Install on a remote server via Server Admin or the softwareupdate command-line utility

Software Update installation

Software Update may have referred you to this article. Because some updates are prerequisites for others, you may need to use Software Update more than once to obtain all available updates.

Standalone installer

If you want to download and manually install the update, an installer is available from Apple Support Downloads. This a useful option if you need to update multiple computers but only want to download the update once.

Remote installation

If you need to install the update on a remote server, you can do so using the Server Admin application or the softwareupdate command-line tool.

What's included?

This update includes improvements listed below, as well as ones delivered with the Mac OS X Server version 10.6.1, 10.6.2, 10.6.3 and 10.6.4 updates.

Chat Service

  • Fixes an issue that could prevent Chat Service from starting after a system update.
  • Chat Service now responds correctly if the server hostname is changed.

Client Management

  • Provides the ability to manage IPP print queues.
  • Enables management of iChat preferences, using the com.apple.iChat preference manifest.
  • Enables management of iCal preferences, using the com.apple.iCal preference manifest.
  • Supports creation of an external account with a home directory on a FAT32 filesystem.
  • Fixes an issue that could cause a user with a mobile account to use a network home directory instead of their portable home directory.
  • Addresses an issue that could prevent managed preferences from being applied when a user logs in on a workstation that has been idle.
  • Fixes an issue that could prevent administrators from bypassing client management settings on a workstation.

Directory Services

  • Improves the reliability of Directory Services, fixing issues that could prevent users from authenticating, or cause other services to stop responding.
  • Improves reliability of Open Directory and Password Server replication.
  • Administrators can now import user records that contain a period in the user's short name.
  • Fixes the ldap_start_tls function.

Mail Service

  • Eliminates extraneous "user exists more than once" message from Mail Service in system.log.

Podcast Service

  • Improves Podcast Producer set up when bound to Active Directory.
  • Enables Active Directory users to publish podcasts to the Wiki Service.
  • Fixes an issue that could cause podcast audio and video to get of sync.
  • Improves reliability of connection to remote cameras.
  • Improves reliability of the Podcast Capture Web Application.
  • Podcast Capture will now only ask once about storing a password in keychain.

Software Update Service

  • Software Update Service now properly allows administrators to host older updates (such as Mac OS X v10.6.4) after a superseding update (such as 10.6.5) is released.

Web Service

  • Updates PHP to version 5.3.3.

Wiki Service and Web Calendar

  • Improves Wiki Service performance.
  • Improves auto-completion of invitee names on Web Calendar.
  • Improves delivery of wiki mailing list messages to addresses that contain a "/" character.


  • Improves reliability of fibre channel connections, resolving a potential Xsan volume availability problem.

Server Admin

  • When setting up a remote server, Server Admin will now reliably launch Server Assistant.
  • Adds NetBoot/NetInstall model filters for Mac mini (Mid 2010), iMac (Mid 2010), Mac Pro (Mid 2010) and MacBook Air (Late 2010).
  • When creating a DHCP Subnet in Server Admin the field for DNS Search Domain now accepts the dash (—) character.
  • Reduces memory usage when monitoring print queues in Server Admin.

System Image Utility

  • Adds NetBoot/NetInstall model filters for Mac mini (Mid 2010), iMac (Mid 2010), Mac Pro (Mid 2010) and MacBook Air (Late 2010).
  • Fixes the "Apply System Configuration Settings" custom workflow.

Additional improvements

  • Improves Mac OS X Server security. For more information about the security content of Mac OS X Server v10.6.5 see this article.
  • Mac OS X Server v10.6.5 also includes all other improvements delivered in the client Mac OS X v10.6.5 Update.

Mac OS X Server v10.6.5 (build 10H575), released on November 15, 2010, includes security content described in this article. If you installed Mac OS X Server v10.6.5 (build 10H574), released on November 10, 2010, you should reinstall the Mac OS X Server v10.6.5 Update.

Important: If you downloaded the standalone installer of Mac OS X Server v10.6.5 (build 10H574) prior to November 15, 2010, do not install it on a system running Mac OS X Server v10.6.5 (build 10H575), as that would revert the server to build 10H574.

You can tell which build of Mac OS X Server v10.6.5 you are running by choosing About this Mac from the Apple menu. Click the word "Version" in the About This Mac window to see the build number. If you are running Mac OS X Server build 10H574, use Software Update or the Mac OS X Server v10.6.5 Update standalone installer to update to build 10H575.

Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple’s recommendation or endorsement. Please contact the vendor for additional information.
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