Eesafe tip: Be aware of shutting down several high-risk ports in Windows

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Several high-risk ports in windows are turned on by default, and many intrusions are entered through several high-risk ports, such as Eesafe's past cases of computer intrusion, eesafe to explain the main uses of these ports and how to close them.

135 Port

Features: Primarily for RPC remote calls

Shutdown method: The RPC service is stopped. In the service window, select "Remote Procedure call" and set the startup type to the disabled option.

137&139 Port Port

Function: Port 137 is used for the NetBIOS name Service, and the 139 port is used to provide Windows file and Printer sharing services.

Shutdown method: Disable TCP/ip-based NetBIOS service. Right-click the Network Places icon on your desktop, on the shortcut menu that pops up, perform the Properties command, open the Internet Protocol (TCP/IP) Parameter Settings window, click the Advanced button, and then in the Settings box that pops up, select the WINS tab, and select the Disable tcp/ NetBIOS on IP, and finally click OK to complete the setup operation to turn off the NetBIOS service.

445 port

Features: Open in Windows 2000, Windows XP, Windows 2003, and the same functionality as 139 ports.

Close method: Almost identical to the method of shutting down port 139. But in addition to using the above method, there is another way to completely turn off port 445: Run the regedit command and open the Registry Editor interface. Click the Hkeylocal_machine\system\currentcontrolset\services\netbt\par-ameters subkey in turn, and in the child window on the right, right-click the blank area, and in the pop-up shortcut menu , execute the new two-byte value command in turn and name the value smbdeviceenabled. Double-click the smbdeviceenabled option to set its numeric value to "0" in the pop-up numerical settings interface. Close the registry editing interface, reboot the system, and the 445 service ports will be completely shut down.

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