Sunday, 20 January 2013

Enabling the Dedicated Admin Connection (DAC)

The Dedicated Admin Connection (DAC) or Remote Admin Connection allows one administrator connection to a server. A good thing to have enabled for an emergency.

To enable the DAC ;
  1. Open port 1434 on Windows firewall / ISA / Any hardware firewalls present.
  2. sp_configure 'remote admin connections', 1;

Links :

Enabling DAC via TSQL 
The Dedicated Admin Connection: Why You Want It, When You Need It, and How To Tell Who’s Using It
MSDN : remote admin connections Server Configuration Option

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