You have access to a Linux server running several services,
including one named app.
Your objective is to identify the port that the app service is using.
This is an easy problem, but proceed with caution -
you have only one attempt to submit your answer.
Good luck!
Hint 1 💡
There are plenty of tools to list ports and/or used sockets on a Linux machine:
netstat, ss, lsof, etc.
Pick one and try to figure out how to use it for this particular task.
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