We have a mx84 as a firewall, for wifi we have another manufacturer APs. We would like to block or rate limit android OS updates of cell phones . For iOS updates I know that it is possible using the layer 7 firewall rule for url: mesu.apple.com and appldnld.apple.com I was thinking doing the same for android: play.google.com ; but I am not sure if that url it is correct for android OS update and besides that it will also block app, movie and books download(we dont want this last).