Free and Open Source Software

The thing I need that I currently use YouTube for is a place where I can store long, large videos (think around 2 hours). I want to be able to link to these videos, and disallow anyone who doesn’t have the link from seeing them. I have a lot of personal videos at this length and at a much shorter length that I want to be able to keep saved both for myself and to be able to share with various friends and acquaintances. YouTube has filled this need and still does, but I’m looking to move off of it. I’ve looked at some alternatives and few of them worked out for me because they don’t support long/large enough videos.