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What is the command to view the status of the port? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

The command to view the port status is netstat. The netstat command is generally used to verify the network connectivity of each port of the machine. Specific usage, such as: view all current tcp ports, the command is: [netstat-ntlp].

The command to view the port status on the linux system is netstat.

The netstat command is used to display statistics related to the IP, TCP, UDP, and ICMP protocols, and is generally used to verify the network connectivity of each port of the machine.

Netstat is a program that accesses network and related information in the kernel. It can provide reports on TCP connection, TCP and UDP snooping, and process memory management.

The parameters of the netstat command are described as follows:

-t: indicates that the TCP port is displayed

-u: indicates that the UDP port is displayed

-l: only monitor sockets are displayed

-p: displays the process identifier and program name, and each socket / port belongs to a program

-n: no DNS polling, showing IP

This command is combined with the grep command to view a specific port and service:

For example:

Netstat-ntlp / / View all current tcp ports netstat-ntulp | grep 80 / / View the usage of all 80 ports netstat-an | grep 3306 / / check the usage of all 3306 ports to see which services and ports are on a server and netstat-lanp to see how many ports a service has. For example, to check mysqldps-ef | grep mysqld to check the number of connections to a port, for example, port 3306 netstat-pnt | grep: 3306 | wc, this is the answer to the command question about what port status is. I hope the above content can be of some help to everyone. If you still have a lot of doubts to be solved, you can follow the industry information channel for more information.

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