Method to detect whether ip and port are connectable

Windows cmd

telnet

format:

telnet ip port

case:

telnet 191.1.1.1 8080

Telnet cannot add http://

Telnet does not support domain names

The default port for telnet is 23

The telnet connection IP and port are spaces " " instead of colons ":"

If the connection cannot be made, a prompt will appear saying that the connection failed. Otherwise, if a large blank space and an inoperable interface appear in cmd, it indicates that the connection is successful.

ping

format:

ping ip or domain:port

case:

ping 191.1.1.1:8080

Cannot add http:// to ping

Ping supports domain names

The default ping port is 80

The ping connection IP and port are colons:

If the connection is not possible, it will prompt that the connection failed, otherwise it will prompt how many bytes are sent and received, for a total of four rounds of sending and receiving.

The above method of detecting whether the IP and port are connectable is all I want to share with you. I hope it can give you a reference. I also hope that you will support 123WORDPRESS.COM.