Comment 1 for bug 1575308

> I don't know if the guide is out of date or if the error is in the repositories, so I'm reporting it here.

The error is in the serverguide. The change occurred later in the 16.04 development cycle, but plenty early enough to do something about it. I have begged and begged for a Subject Matter Expert to review the samba chapter. Just a few days ago, I was told that someone will review it. So, hopefully soon we get that chapter updated. Sorry for any inconvenience, and thanks for reporting it.