What to take note when establishing trust between Domain Controllers?

Prerequisites to establish trust;

1. Cannot be a Read-Only Domain Controller
2. Both source and target domain controllers has to hold the PDC role to establish the trust.
   • Make sure you transfer the fsmo
3. Both domain controllers must be able to ping each other

   • At target domain controller, Ping <source domain DNS>

   • Ping domain controller IP addresses

4. Firewall are disable at both domain controllers
5. Able to Nslookup each other domains

You will fail with an error if the prerequisites are not met;

“The secure channel verification on Active Directory Domain Controller <DC name> of domain <source domain> to <target domain> failed with error: The specified domain either does not exist or could not be contacted.”

Author: sabrinaksy

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