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Which users can login


Is there a way to show which users could log onto the system and all groups available on the system. NOT which users were currently online and which groups you belong to.




  • marcmarc Posts: 647
    That's *VERY* difficult to know.

    However, in the average system, everything is in /etc/passwd (those users with no "nologin" or "false" at the end can log in) and /etc/group

  • usmangt,

    Marc is right, but the information is certainly available, you'll just have to check multiple sources.

    You should also take a look at the /etc/shadow file and check for anything with an ! at the start of the second field.


    A user can be locked in this way by running passwd -l USERNAME

    Wikipedia actually has fairly good articles on both passwd and shadow that might help you understand the syntax.

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