How To : VB Script to Remove the Machine Names from COM+ catalog.

We had a lot of remote servers configured in Component Services. Some of the servers later got decommissioned. Now when we try to click on the machine name nodes in Component Services it hangs and does not respond. We ran the VB script below to remove the machine name nodes from COM+ catalog.You need to be the local…


Potential risks of using unsecure RPC (No Authentication Required setting) in MSDTC security configuration

When your MSDTC machine is accessible from an un-authenticated client, i.e. machine outside your domain/firewall. Then when such a machine tries to talk to this MSDTC server, the MSDTC server will accept such requests, so in all it could allow requests from a machine outside the domain(as long as it can reach the MSDTC server/ports)…

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MSDTC security settings getting reset on a cluster server if the DomainControllerState key value is set to 1.

  There are two Windows server 2003 SP2 nodes on the Veritas cluster and both of them are Domain Controllers. Under the registry hive HKLM\software\Microsoft\MSDTC\Security, the value of DomainControllerState is set to “1” (Node 1) and “2” (Node 2) respectively. When we move over the resources from node1 to node2, all the MSDTC security settings…