How to test local access to the cloud server's Web port

Open DOS command line in Windows environment

Use the Telnet command. such as Telnet www.baidu.com 80

Interrupt a tip: The DOS command for a clear screen is CLS-compliant.

First, unfortunately, "' Telnet ' is not an internal or external command, nor is it a running program or batch file. "This error.

This is because Win7 does not have the Telnet feature installed by default, so you cannot use the Telnet command directly. You can go to "control Panel"-"program" (in the bottom left corner)---"

"Turn Windows features on or off" and check "Telnet client" to make sure that you can use the Telnet command normally.

Re-enter Telnet www.baidu.com 80

The information flashes and it's over. The following result:

This result shows that the www.baidu.com 80 port is accessible. So what is the result of not being able to access it?

First exit the Telnet connection: Ctrl +] key, and then press Q. Such as:

Let's test the port 81 again. Input command Telnet www.baidu.com 81

This interface appears first.

Then there is the inability to connect, indicating that the www.baidu.com 81 port is not open to the outside.

How to test local access to the cloud server's Web port