Why does PyCharm listen on three ports?

My local pycharm is listening on ports
127.0.0.1:42014 and on
127.0.0.1:6942 and **which is critical **on
0.0.0.0:63342 .

The questions are:
1. Why?
2. Is there a way to turn this off? (I do not mean to turn on my local firewall)
3. Does pycharm open any sockets to connect jetbrains?
2 comments
The ports are used by the licensing subsystem, the local web server and for execution of commands from external processes (for example, for opening stacktrace links from YouTrack). In PyCharm 3.0, you can configure whether the local web server accepts external connections under Settings | Debugger | JavaScript.

JetBrains never initiates any network connections to any JetBrains product instances running on users' machines.
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In PyCharm 3.0, you can configure whether the local web server accepts external connections under Settings | Debugger | JavaScript.


Thanks, I checked this with EAP version 1764

Now it listens to the port
0.0.0.0:10001

Any idea how to switch this one off?
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