Validator DOT requirements & others

I am interested to become validater, but I have following questions:

  1. how many DOT require to become validater, I mean is there any fee to become validater or just require skill to run the node?

2.Is there any video tutorial guides for become validator, like there is guide to nominate tokens in YouTube?

  1. if require dot to become validator, then old dot or new dot?

Hi @eddy416,

Here is the official documentation:

And a YouTube video on how to setup a node: