Use the link appropriate for your OS family to download a repository file that contains the software for setting up Ambari.

Ambari 2.7.5 Repositories

OS Format URL

RedHat 7

CentOS 7

Oracle Linux 7

 Base URL https://archive.cloudera.com/p/ambari/centos7/2.x/updates/2.7.5.0
Repo File https://archive.cloudera.com/p/ambari/centos7/2.x/updates/2.7.5.0/ambari.repo
Tarball md5 | asc https://archive.cloudera.com/p/ambari/centos7/2.x/updates/2.7.5.0/ambari-2.7.5.0-centos7.tar.gz

amazonlinux 2

 Base URL https://archive.cloudera.com/p/ambari/amazonlinux2/2.x/updates/2.7.5.0
Repo File https://archive.cloudera.com/p/ambari/amazonlinux2/2.x/updates/2.7.5.0/ambari.repo
Tarball md5 | asc https://archive.cloudera.com/p/ambari/amazonlinux2/2.x/updates/2.7.5.0/ambari-2.7.5.0-amazonlinux2.tar.gz
SLES 12 Base URL https://archive.cloudera.com/p/ambari/sles12/2.x/updates/2.7.5.0
Repo File https://archive.cloudera.com/p/ambari/sles12/2.x/updates/2.7.5.0/ambari.repo
Tarball md5 | asc https://archive.cloudera.com/p/ambari/sles12/2.x/updates/2.7.5.0/ambari-2.7.5.0-sles12.tar.gz
Ubuntu 16 Base URL https://archive.cloudera.com/p/ambari/ubuntu16/2.x/updates/2.7.5.0
Repo File https://archive.cloudera.com/p/ambari/ubuntu16/2.x/updates/2.7.5.0/ambari.list
Tarball md5 | asc https://archive.cloudera.com/p/ambari/ubuntu16/2.x/updates/2.7.5.0/ambari-2.7.5.0-ubuntu16.tar.gz
Ubuntu 18 Base URL https://archive.cloudera.com/p/ambari/ubuntu18/2.x/updates/2.7.5.0
Repo File https://archive.cloudera.com/p/ambari/ubuntu18/2.x.updates/2.7.5.0/ambari.list
Tarball md5 | asc https://archive.cloudera.com/p/ambari/ubuntu18/2.x/updates/2.7.5.0/ambari-2.7.5.0-ubuntu18.tar.gz
Debian 9 Base URL https://archive.cloudera.com/p/ambari/debian9/2.x/updates/2.7.5.0
Repo File https://archive.cloudera.com/p/ambari/debian9/2.x/updates/2.7.5.0/ambari.list
Tarball md5 | asc https://archive.cloudera.com/p/ambari/debian9/2.x/updates/2.7.5.0/ambari-2.7.5.0-debian9.tar.gz