How to Use the Netstat Command on Mac
Netstat is a command-line tool that is used to display network-related information on various operating systems including macOS. Netstat allows users to view active network connections, both incoming and outgoing. It can also display statistics related to network protocols and interfaces.
To use netstat on Mac, follow the steps below:
1. Open the Terminal app on your Mac. You can find it in the Applications folder under Utilities.
2. Type “netstat” and press Enter. This will display a list of active network connections.
3. You can use different options to customize the output of netstat. For example, you can use “netstat -n” to display the addresses and port numbers in numerical format.
4. To view network statistics, use the option “netstat -s”. This will display a summary of statistics related to various network protocols and interfaces.
5. If you want to display only the TCP connections, use the option “netstat -t”. Similarly, if you want to display only the UDP connections, use the option “netstat -u”.
6. You can also use the option “netstat -a” to display all active connections, including those listening for incoming
connections.
7. The netstat command can be combined with other commands such as grep to filter the output. For example, you can use “netstat | grep ESTABLISHED” to display only the active connections that are currently established.
In conclusion, the netstat command is a powerful tool for troubleshooting network-related issues on macOS. By using the various options available, you can customize the output to suit your specific needs. Whether you are a network administrator or a casual user, knowing how to use netstat is an essential skill to have.