August 2019
Intermediate to advanced
786 pages
20h 22m
English
Content preview from Mastering Active Directory - Second Edition
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Verifying the connection
Check whether the problematic SYSVOL folder can reach other domain controllers. A simple ping can verify the connectivity between nodes. Also, try to access the replication partner shares using \\domaincontroller (network path). Verify that replication partners are also in a healthy state. DFS Replication requires specific TCP and UDP ports. Make sure the following TCP and UDP ports are allowed via hardware/software firewalls:
|
Service name |
TCP |
UDP |
|
NetBIOS name service |
137 |
137 |
|
NetBIOS datagram service |
- |
138 |
|
NetBIOS session service |
139 |
- |
|
Remote Procedure Call (RPC) |
135 |
- |
|
Server Message Block Protocol (SMB protocol) |
445 |
445 |
|
Lightweight Directory Access Protocol ( |