I apologize in advance for my lack of knowledge of the raspberry pi and stuff in advance. But anyways I was wondering if there is any way for me to get a domain and when that domain is visited you are prompted with a login page and if you have an account(accounts would be for family only) you can stream movies off the Plex media server. If possible it would be awesome if it could all be done on one raspberry pi. Thank you guys in advance I am completely open to suggestions.
Edit: I have port forwarded the 32400 port and I enabled remote access on plex and it says I can access it outside of my network but I would like it to be the way stated above ^^ . I am aware I can invite people to share my library but I would like to just have people visit and stream my library. When I go to my private ip (ex. 192.xxx.x.xx:32400/web) is what i would like it to be like Thanks :)