At places like Google, where some users use Linux and others use Windows and even Mac, how are they managing IDAM?

For example

  1. have a single directory service (probably highly customised)?
  2. is it split into several controllers, say Linux, Mac and Windows?
  3. or do they just use local users?
  • 1
    They use an existing protocol and services that all OSes have support for. Like Kerberos, Active Directory, even RADIUS, etc. The OS is not the limitation.
    – schroeder
    Sep 21, 2019 at 21:15
  • 1
    I get the impression that you think that this would be an insurmountable or highly complex problem, or in need of customisation, but it has been solved for a few decades.
    – schroeder
    Sep 21, 2019 at 21:16

1 Answer 1


Microsoft Active Directory can be used out-of-the-box for macOS and certain enterprise ready Linux distributions (e.g. Ubuntu). There is no customization required.

macOS has a feature called Directory Utility.

Ubuntu's feature to support Active Directory.

The company I work for has a similar scenario than what I've described above and it works as expected.

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