LDAP query Synology NAS for all users of a group

Well some experienced LDAP administrators may laugh, but it was quite hard for me, as LDAP "newbie" to find out how to get a list of all LDAP Group Members from my Synology DiskStation. So I'd like to share my experience and result.

My task was to get a list of all active users in my Synology LDAP which belong to a certain Group ("CEO").

What made things even harder for a beginner like me, was that Synology uses custom terms and not "objectClass=user" but "objectClass=posixAccount". See:

So my final result for the filter term to get all active users from Synology NAS who are members of the group "CEO" is:

Where the last part "dc=mynas,dc=local" is the "Base DN" which you can copy from the configration tab of your Synology LDAP Server settings.



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