Disabling Automatic Site Coverage for a Domain Controller

Disabling Automatic Site Coverage for a Domain Controller


You want to prevent a domain controller from covering sites outside of the one it resides in.


Using a graphical user interface
  1. Run regedit.exe from the command line or Start Run.

  2. Expand HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Net-logon\Parameters.

  3. Right-click on Parameters and select New DWORD Value.

  4. For the name, enter AutoSiteCoverage.

  5. Double-click on the new value, enter 0 under Value data, and click OK.

Using a command-line interface
	> reg add HKLM\System\CurrentControlSet\Services\Netlogon\Parameters /v\
	AutoSiteCoverage /t REG_DWORD /d 0

Using VBScript
	' This code disables auto site coverage.
	strNetlogonReg = "SYSTEM\CurrentControlSet\Services\Netlogon\Parameters"
	const HKLM = &H80000002
	Set objReg = GetObject("winmgmts:root\default:StdRegProv")

	objReg.SetDWORDValue HKLM, strNetlogonReg, "AutoSiteCoverage", 0
	WScript.Echo "Site coverage disabled"


If you want to reduce the load on a domain controller, one way is to prevent it from covering for other sites. Automatic site coverage happens when a site does not contain any member domain controllers.

See Also

Recipe 12.25 for viewing the site coverage for a domain controller

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