Linux computer management system?

Question

linux

Hello. the organization has a huge number of computers on linux. The bulk of mint, but there is also ubuntu, fedora, manjaro ... I would like to bring all this to at least someone in an adequate form.
Computers are used for: 1
) work in the browser and in office programs (libre) 2 ) work through remmina
via rdp on the terminal server prescribe a proxy in the browser centrally 4) it is desirable, but not necessary - that it is possible to enter the AD domain, and that all of the above applies to domain users, or to all users on the computer

Answer 1

https://www.freeipa.org/page/Main_Page

Answer 2

https://cockpit-project.org/

Answer 3

1) Install everything from one distribution kit
2) configure everything through Ansible
3) do a single authorization via LDAP