About DNS, DTC, and BizTalk

The test machine found a strange problem. There are two Test Machines:

Demo06dc: domain control + SQL

Demo06app: Biztalk Application

All links are good, but the following error occurs when the enable SQL receive location:

Title: Biztalk Server 2006 Administration Console
------------------------------

The Microsoft Distributed Transaction Coordinator (MSDTC) may not be configured correctly. ensure that the MSDTC service is running and DTC network access is allowed on the BizTalk, SQL and SSO master servers. for more information, see "MSDTC configuration settings required for BizTalk Server" in the BizTalk Server help.

Internal error: the transaction has already been implicitly or explicitly committed or aborted.
(Microsoft. BizTalk. assumerom)

For help, click: http://go.microsoft.com/fwlink? Linkid = 47400 & prodname = Microsoft + BizTalk + SERVER + 2006 & prodver = 3.5.1602.0 & evtsrc = Microsoft. BizTalk. assumerom. Resources & evtid = ids_err_dtc_misconfigured

 

If n is checked, no result is returned, including MSDTC-uninstall/-install,

DNS settings are incorrect.

The DNS of the member machine points to domain control.

Domain control's first DNS must point to itself