====== Im AD verwendete Ports ======
^ Protocol and Port ^ AD and AD DS Usage ^ Type of traffic ^
| TCP and UDP 389   | Directory, Replication, User and Computer Authentication, Group Policy, Trusts | LDAP |
| TCP 636           | Directory, Replication, User and Computer Authentication, Group Policy, Trusts | LDAP SSL |
| TCP 3268          | Directory, Replication, User and Computer Authentication, Group Policy, Trusts | LDAP GC |
| TCP 3269          | Directory, Replication, User and Computer Authentication, Group Policy, Trusts | LDAP GC SSL |
| TCP and UDP 88    | User and Computer Authentication, Forest Level Trusts                          | Kerberos |
| TCP and UDP 53    | User and Computer Authentication, Name Resolution, Trusts                      | DNS |
| TCP and UDP 445   | Replication, User and Computer Authentication, Group Policy, Trusts            | SMB,CIFS,SMB2, DFSN, LSARPC, NbtSS, NetLogonR, SamR, SrvSvc |
| TCP 25            | Replication                                                                    | SMTP |
| TCP 135           | Replication                                                                    | RPC, EPM |
| TCP Dynamic       | Replication, User and Computer Authentication, Group Policy, Trusts            | RPC, DCOM, EPM, DRSUAPI, NetLogonR, SamR, FRS |
| TCP 5722          | File Replication                                                               | RPC, DFSR (SYSVOL) |
| UDP 123           | Windows Time, Trusts                                                           | Windows Time |
| TCP and UDP 464   | Replication, User and Computer Authentication, Trusts                          | Kerberos change/set password |
| UDP Dynamic       | Group Policy                                                                   | DCOM, RPC, EPM |
| UDP 138           | DFS, Group Policy                                                              | DFSN, NetLogon, NetBIOS Datagram Service |
| TCP 9389          | AD DS Web Services                                                             | SOAP |
| UDP 67 and 2535   | DHCP                                                                           | DHCP, MADCAP |
| UDP 137           | User and Computer Authentication                                               | NetLogon, NetBIOS Name Resolution |
| TCP 139           | User and Computer Authentication, Replication                                  | DFSN, NetBIOS Session Service, NetLogon |