How to: Use FILESTREAM in a Firewall-Protected Environment

To use FILESTREAM in a firewall-protected environment, both the client and server must be able to resolve DNS names to the server that contains the FILESTREAM files. FILESTREAM requires the Windows file-sharing ports 139 and 445 be open.

To open the Windows file-sharing ports on a computer that is running Windows Vista

1. In Control Panel, double-click Windows Firewall, and then click Allow a program through Windows Firewall.

2. In the Windows Firewall Settings dialog box, click the Exceptions tab, and then click the Add Port button.

3. In the Add a Port dialog box, enter TCPport139 in the Name text box; enter 139 in the Port Number text box; select TCP; and then click OK.

4. To add port 445, repeat step 3.

5. To close the Windows Firewall Setting dialog box, click OK.

To open the Windows file-sharing ports on a computer that is running Windows XP

1. In Control Panel, double-click Windows Firewall.

2. Click the Exceptions tab, and then double-click File and Printer Sharing.

3. Select TCP 139 and TCP 445, and the click OK.

4. To close the Windows Firewall dialog box, click OK.

See Also

Concepts

Designing and Implementing FILESTREAM How-to Topics