Questions tagged [dac]

Dedicated Admin Console (DAC) a reserved connection on SQL Server that grants special access to system tables and can help diagnose problems

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When using DAC, receiving the “[…] the maximum number of '1' dedicated administrator connections already exists” message in error log

I am about to escalate this to MS, but I thought I would try here first and see if anyone has any ideas as to how to prevent this faux error message... When connecting to SQL Server (2016 and 2017 ...
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DAC silently swallows tokenization errors in sp_msforeachdb

This morning I hopped on the DAC to check something out. Oops, I made a typo! 1> exec sp_msforeachdb N' 2~ use [?] 3~ select N'?', count(*) from sys.sysrscols; 4~ ' 5> go 1> Can you spot ...
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Severity 20 Error upon disconnecting Dedicated Administrator Connection

Starting working with Dedicated Administrator Connections on SQL Server 2008 R2 servers. All is working fine (once port 1434 was opened), but am getting severity 20 errors when I disconnect the admin ...
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SQL Server DAC - Connection Issue

I am having a strange issue when trying to connect to my SQL Server instance remotely from my client computer. I am able to do this on my other instances by opening up a new Database Engine Query and ...