One account for authorization on all services of the company?

Question

linux

I am interested in such a question as in small companies there is an organization of access to all services, for example, to mail, jabber and some kind of otrs. I want to test such solutions and learn how to administer them.
What are the general solutions? After all, it is not an option to create a bunch of users with your hands to all services.

Answer 1

Integration with Windows domain or its equivalent FreeIPA will allow all services to use one user base.
(For real geeks, you can install and configure everything by hand - LDAP, Kerberos, etc.)

Answer 2

as a rule, LDAP is used for this

Answer 3

This option is not for small companies, but it is - hashicorp vault