Windows7 system how to open the specified port windows7 check port is not open or network failure method

windows 7 system open the specified port how to operate, why open the port, must be started under windows7 network services, you need to open the port for other machines to access Ah! Here is a brief description of how to add the port allowed by Windows 7. The other port connection failure is not equal to the network problem. It may be caused by the firewall blocking the service of some services, causing the service port to be interrupted. The port test tool can check that the port is not Open or network failure.

First select the Start menu to go to the Control Panel, then select Windows Firewall

and select Advanced Settings Options

Select Inbound Rules
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New Rule

Select the port, click Next

As shown in the figure, enter the port you want to open, such as: 3333, click Next

Next

Next

The name is best to write the name of the open port, which is convenient for the next search, click Finish

At this time, the inbound rules have been displayed, indicating that it has been successful.

Method 2: TCP/IP Protocol Properties Open Computer Port

Click “Start”→“Control Panel”→“Network and Internet”→“View Network Status and Tasks”→“Local Connection”→Click“Properties”→Select“TCP/IPv4 Protocol”→Click“Properties”→Click“Advanced”, Open the TCP/IP filter on the page of the option. In the setting window that appears, you can also set the port to open and close according to the implementation. By default, TCP/IP filtering is not enabled.

How to check if the port is open:

First click on Start under Windows - Run the input cmd command

Use netstat -an to view the listening port (ie open port) )