I would like to inspect UID and GID numerical values on my High Sierra (10.13.4) server, so that I can coordinate and de-conflict these for use with NFS. Since NFS authenticates at the server level, UIDs and GIDs need to match across the set of machines using the NFS served files, to properly preserve and enforce file and folder permissions.
Traditionally, Unix machines hold these values in /etc/passwd and /etc/group. These files do not contain the Users and Groups I have added to my system.
I can inspect individual user's and group's IDs in the System Preferences dialog, but this becomes tedious with many users. I really need to list all the UIDs and GIDs I have previously configured.
The man page for chmod(1) does not mention any files. The man page for passwd(1) mentions the non-traditional file /etc/master.passwd but this file similarly lacks my Users and Groups.
Is there a .plist file somewhere containing these added User and Group definitions?