Some webpages with how tos in setting up
Forum answers :
https://community.wd.com/t/how-to-use-mbl-as-a-web-server/59152
https://community.wd.com/t/wd-my-cloud-as-web-server/91559
Other web pages
https://netcodger.wordpress.com/2012/04/16/the-awesome-little-western-digital-my-book-live/
http://colekcolek.com/2011/12/20/hack-wd-book-live/ (expert talk !)