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How to check port status using netstat
- 小老鼠Original
- 2023-11-02 17:12:372928browse
Use the netstat command to view the status of the port. Note: On Windows systems, you may need to run Command Prompt with administrator rights to view all connection information. On Linux or Mac systems, you may need to use the sudo command or a user with sufficient privileges to execute the netstat command.
#Use the netstat command to view the status of the port and related network connection information. The following is an example of using the netstat command to view port status:
Open a command prompt or terminal window.
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Enter the following command:
netstat -ano
- -a: Display all network connections and listening ports.
- -n: Display the IP address and port number in numerical form.
- -o: Display the process ID associated with each connection.
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After pressing the Enter key to execute the command, all network connection and listening port information on the current system will be displayed, including local IP address, local port, and remote IP Address, remote port and connection status, etc.
Sample output:
Active Connections Proto Local Address Foreign Address State PID TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 1234 TCP 192.168.0.100:54321 192.168.0.200:12345 ESTABLISHED 5678 TCP 192.168.0.100:12345 192.168.0.200:54321 ESTABLISHED 5678
In the output, you can view the local address, remote address and connection status of each network connection.
Note: On Windows systems, you may need to run the command prompt with administrator privileges to view all connection information. On Linux or Mac systems, you may need to use the sudo command or a user with sufficient privileges to execute the netstat command.
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