2. The local connection status dialog box pops up, and click the Properties button.
3. The local connection properties dialog box pops up, and double-click the Internet Protocol Version 4(TCP/IPv4) option in the list.
4. The Internet Protocol Version 4(TCP/IPv4) dialog box pops up, and click the Advanced button.
5. Pop up the Advanced TCP/IP Settings dialog box and switch to the win tab.
6. Select the radio button in the NetBIOS Settings ribbon to disable NetBIOS over TCP/IP, and then click OK to finish opening port 3389.
Extended data:
Please set your system login password to be more complicated before closing port 3389.
1. Turn off the Windows background service related to port 3389.
In Windows XP/2003:
Click: Start-> Settings-> Control panel->; Management tools-> service
In the background service list, find the following four items.
NetMeeting remote desktop sharing
Remote Desktop Help Session Manager
terminal service
Terminal services session directory
Set the above four Windows background services to be disabled.
In Windows 7:
Note: In the control panel, change the "View Mode" to "Large Icon" to view the above options.
In the background service list, find the following three items.
Remote desktop configuration
Remote desktop service
Remote Desktop Services User Mode
Set the above three Windows background services to be disabled.
Second, close the foreground program related to port 3389.
Click: Start-> Settings-> Control panel->; system
Select the Remote tab in the System Properties window.
1. Remove the check mark before "Enable remote assistance and allow invitations to be sent from this computer"
2. Remove the check mark before "Enable Remote Desktop on this computer"
Restart the computer, and port 3389 can be completely closed.
Note: If your system login password is empty or too simple, and ports 23, 135 and 139 are not closed, it is easy to remotely open port 3389 through these ports again, and this operation is meaningless.