Which network ports does CAEN block from off-campus access?
The blocked ports are those used by services such as file sharing, directory & domain services, and Exchange; specifically the TCP & UDP ports include 135, 137-139, 445, 1433, and 1434:
| Affected Service | UDP | TCP |
|---|---|---|
| Browsing responses of NetBIOS over TCP/IP | 138 | |
| Browsing requests of NetBIOS over TCP/IP | 137 | |
| Client/Server Communication | 135 | |
| Common Internet File System (CIFS) | 445 | 139/445 |
| DCOM Service Control Manager (SCM) | 135 | 135 |
| DHCP Manager | 135 | |
| DNS Administration | 139 | |
| Exchange Server | 135 | |
| File Sharing | 137 | 139 |
| Login Sequence | 137/138 | 139 |
| Microsoft Message Queue Server | 135 | |
| Microsoft SQL Monitor | 1434 | |
| Microsoft SQL Server | 1433 | |
| NetBIOS Name Service | 137 | |
| NetBIOS Session Service | 139 | |
| NetBT Datagrams | 138 | |
| NetBT Name Lookup | 137 | |
| NetBT Service Session | 139 | |
| NetLogon | 138 | |
| Pass Through Verification | 137/138 | 139 |
| Printer Sharing | 137 | 139 |
| Remote Procedure Call (RPC) | 135 | |
| SQL Named Pipes | 137 | |
| SQL RPC | 137 | |
| SQL Session | 139 | |
| SQL Session Mapper | 135 | |
| WINS Manager | 135 | |
| WINS Proxy | 137 | |
| WINS Registration | 137 |
