Gordon:
It's a dbus service.
Interesting — thanks!
# rpm -qf /etc/dbus-1/system.d/org.freedesktop.Accounts.conf accountsservice-0.6.39-2.fc21.x86_64
That file/RPM does not appear to be available on CentOS 6.
Documentation in: /usr/share/dbus-1/interfaces/org.freedesktop.Accounts.xml
For example: $ dbus-send --system --type=method_call --print-reply \ --dest=org.freedesktop.Accounts \ /org/freedesktop/Accounts \ org.freedesktop.Accounts.ListCachedUsers
Alas, because it’s not available for CentOS 6, none of the above is available/appicable, so I’m back to square one.
Alfred