How to receive user and password for archive.cloudera.com?
For example: https://archive.cloudera.com/p/ambari/ubuntu16/2.x/updates/188.8.131.52/ambari.list
@kirills2006 You can find information on how to access files related to Ambari 2.7.5 from Cloudera's repositories on this page:
Accessing Ambari Repositories
…and that page also summarizes how to obtain the required authentication credentials for the archive.