How to enable Dedicated Administrator Connection Feature in SQL Server 2008?

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DAC feature added from the SQL Server 2005 version. Using DAC feature a Database Administrator can connect to a SQL Server Instance when the database engine is not responding to regular connections and troubleshoot the issue.

Advantage of using DAC is DBA can connect to a SQL Server Instance and execute T-SQL commands to troubleshoot and fix issues rather than rebooting the SQL Server which could lead to database corruption or other problems.

By default DAC is disable, it is a best practice to enable the DAC.
We can enable the DAC using below T-SQL command.

Use master
GO
sp_configure 'show advanced options' , 1
GO
sp_configure 'remote admin connections', 1
GO
RECONFIGURE
GO

In SQL Server 2008 to enable the DAC, right click on SQL Server and Select facets and from facets drop down Select Surface Area Configuration.

Thanks for the comment, will get back to you soon... Jugal Shah

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