127.0.0.1 localhost 31.13.79.7 www.facebook.com 31.13.79.7 facebook.com 31.13.79.7 www.login.facebook.com 31.13.79.7 login.facebook.com 31.13.79.7 apps.facebook.com 31.13.79.7 upload.facebook.com 31.13.79.7 graph.facebook.com 31.13.79.7 register.facebook.com 31.13.79.7 vi-vn.connect.facebook.com 31.13.79.7 vi-vn.facebook.com 31.13.79.7 static.ak.connect.facebook.com 31.13.79.7 developers.facebook.com 31.13.79.7 error.facebook.com 31.13.79.7 channel.facebook.com 31.13.79.7 upload.facebook.com 31.13.79.7 register.facebook.com 31.13.79.7 bigzipfiles.facebook.com 31.13.79.7 pixel.facebook.com 31.13.79.7 upload.facebook.com 31.13.79.7 register.facebook.com 31.13.79.7 bigzipfiles.facebook.com 31.13.79.7 pixel.facebook.com Nếu xài viettel thì vào đổi DNS google luôn nha (8.8.8.8/8.8.4.4) ... xong restart lại máy