Active DirectoryComments (0)

Active Directory, a.k.a AD, is a directory service from Microsoft that holds information about various resources/objects within an organization, for example: computers, userobjects, printers and so forth.

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Troubleshooting DNSComments (0)

Exchange and other Microsoft based servers and of course Active Directory are heavily based upon a proper configured DNS.

Required DNS Records:
- SRV – (Pdc), One per domain
- SRV – (GC), At least one per forest
- A – (GcIpAddress), At least one per forest
- CNAME – (DsACname), One per domain controller
- SRV – (Kdc), At least one per domain
- SRV – (Dc), At least one per domain
- A, One per domain controller

Netlogon Events that indicate DNS problems:

ID5774
Troubleshoot domain controller locator DNS records registration failure.

ID5775
Troubleshoot domain controller locator DNS records registration failure.

ID5781
Troubleshoot domain controller locator DNS records registration failure.

ID5783
If the source server could not locate the server in DNS, troubleshoot Active Directory replication failure due to incorrect DNS settings. This could also be a RPC problem.

Testing:
dcdiag /test:registerindns /dnsdomain

dcdiag /test:connectivity

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