[SOLVED] Backup and restore configuration across versions

[normand]

For my curiosity, where are the web interface settings stored, file, db?
Are they all in the same place or bits and pieces all over the place, some files, some db?


I like (love) the idea of a settings/config backup.
It's not that hard to restore all the settings, a pain sometimes, but not hard.


Many of the systems i work with have a settings/config backup utility.  The way they usually do it is using a json or xml file.  Any setting that is not recognized by the system importing the data gets ignored so only valid settings get restored.

For example:

Old system export:
TZ=America/Chicago
NTP=192.168.1.1

New System Format:
TZ=America/Chicago
TimeServer=192.168.1.1

So importing old settings would restore TZ but not NTP as NTP is invalid option on new system.