Best tutorial for PUN on Unity 5?

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Hi everyone!

I've decided that the best networking solution for my game is PUN; eventually I'd like to host my own servers on my own dedicated systems using Server.

I was wondering if any of you could point me towards the best UNITY 5 tutorials for PUN? I've watched and read a lot about PUN but everything seems to be Unity 4.

Also, am I able to create logging in with a MySQL database and have systems such as ranking up with PUN?