What is Port

HI !

i’m sorry my question may seems simple but i’m a bit at lost.

I already use these pluggin once with great succes.
But this time I can’t connect to my Joomla database.

Having acces to the file config.php of the actual site i’m sure that the name, password and adress of the database are right.
I’m guessing my problem must come from the port so i’m asking :

Where can I find the information? what port is it?

Thank a lot

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