http://mirrors.vhost.vn/ubuntu/
http://mirror.bizflycloud.vn/ubuntu/
https://mirrors.bkns.vn/ubuntu/
https://mirror.hostingviet.vn/ubuntu/
http://opensource.xtdv.net/ubuntu/
http://mirrors.nhanhoa.com/ubuntu/
https://mirrors.tino.org/ubuntu/
http://mirror.viettelcloud.vn/ubuntu/
http://mirror.vietnix.vn/ubuntu/
http://mirror.clearsky.vn/ubuntu/
http://archive.ubuntu.com/ubuntu/