红帽全球峰会1.12. Ports required for direct integration of RHEL systems into AD using SSSD
The following ports must be open and accessible to the AD domain controllers and the RHEL host.
| Service | Port | Protocol | Notes |
|---|---|---|---|
| DNS | 53 | UDP and TCP | |
| LDAP | 389 | UDP and TCP | |
| LDAPS | 636 | TCP | Optional |
| Samba | 445 | UDP and TCP | For AD Group Policy Objects (GPOs) |
| Kerberos | 88 | UDP and TCP | |
| Kerberos | 464 | UDP and TCP |
Used by |
| LDAP Global Catalog | 3268 | TCP |
If the |
| LDAPS Global Catalog | 3269 | TCP | Optional |
| NTP | 123 | UDP | Optional |
| NTP | 323 | UDP | Optional |
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