Download links for Ubuntu Server amd64

bionic-server-amd64.iso
HTTPhttp://cdimage.ubuntu.com/ubuntu-server/bionic/daily/20190522/bionic-server-amd64.iso
RSYNCrsync -tzhhP rsync://cdimage.ubuntu.com/cdimage/ubuntu-server/bionic/daily/20190522/bionic-server-amd64.iso
ZSYNCzsync http://cdimage.ubuntu.com/ubuntu-server/bionic/daily/20190522/bionic-server-amd64.iso.zsync
GPG signaturehttp://cdimage.ubuntu.com/ubuntu-server/bionic/daily/20190522/SHA256SUMS.gpg
Checksumhttp://cdimage.ubuntu.com/ubuntu-server/bionic/daily/20190522/SHA256SUMS