System firewall settings
This section describes how to set firewall exceptions.
The following table list the ports used by System Updates for SCCM. .
| Source | Target | Protocol | ||||
|---|---|---|---|---|---|---|
| Port | Location | Component | Port | Location | Component | |
| Not specified | Management server | SCCM Update Tool | TCP 80 | external resource | WSUS Server | HTTP |
| N/A | N/A | N/A | TCP 443 | external resource | WSUS Server | HTTPS |
| N/A | N/A | N/A | TCP 8530 | external resource | WSUS Server (Windows Server 2012 and later version) | HTTP |
| N/A | N/A | N/A | TCP 8531 | external resource | WSUS Server (Windows Server 2012 and later version) | HTTPS |
| N/A | N/A | N/A | UDP 137 | Managed server | Host OS - Samba Server | NetBIOS name service (NMBD) |
| N/A | N/A | N/A | UDP 138 | Managed server | Host OS - Samba Server | SMB |
| N/A | N/A | N/A | TCP 139 | Managed server | Host OS - Samba Server | SMB |
| N/A | N/A | N/A | TCP 389 | Managed server | Host OS - Samba Server | LDAP |
| N/A | N/A | N/A | TCP 445 | Managed server | Host OS - Samba Server | NetBIOS |
| N/A | N/A | N/A | TCP 901 | Managed server | Host OS - Samba Server | SWAT |
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