To list all open ports in Linux, you can use various commands such as
lsof. Here are the steps using the
Open a terminal on your Linux system. You can typically find the terminal application in the system's applications or by using the keyboard shortcut
In the terminal, type the following command and press Enter:
-toption displays TCP ports, the
-uoption shows UDP ports, the
-loption lists listening ports, and the
-noption displays port numbers in numerical form.
The command will output a list of open ports, along with their associated IP addresses and protocols (TCP or UDP).
Alternatively, you can use the
ss command, which is a modern replacement for
netstat. The command is similar:
Or you can use the
lsof command to list open files, including network sockets:
sudo lsof -i
This will display a list of open ports and the corresponding processes.
Remember that listing open ports may require administrative privileges, so you may need to use
sudo before the commands if you're not already logged in as the root user.
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