Lien ISOs :
Ubuntu MATE:
Ubuntu Server:
http://cdimage.ubuntu.com/releases/19.10.1/release/ubuntu-19.10-server-amd64.iso.torrent
http://cdimage.ubuntu.com/releases/19.04/release/ubuntu-19.04-server-amd64.iso.torrent
http://cdimage.ubuntu.com/releases/18.04.3/release/ubuntu-18.04.3-server-amd64.iso.torrent
Ubuntu:
http://releases.ubuntu.com/19.04/ubuntu-19.04-desktop-amd64.iso.torrent
http://releases.ubuntu.com/18.04/ubuntu-18.04.3-desktop-amd64.iso.torrent