Device Pinning Feature

Nextcloud version (eg, 12.0.2): 15.0.2
Apache or nginx version (eg, Apache 2.4.25): Apache
PHP version (eg, 7.1):

The issue you are facing:

Actually we are not facing any issue. Wanted to get some info on Device Pinning Feature. How we can restrict access on nextcloud account using IME/MAC Address. Is this something can be achieved by installing any app or any other work around for it?

Your help in this regard will be highly appreciated. TIA

From my experience all kind of addresses (IP, IMEI, MAC can be modified on one or the other way. What about using a Yubikey hardware token as recommended here

You could use the fileaccesscontrol-app to restrict access to local or other ip ranges. There has been some improvements for the latest version:

For each client you can set up individual app passwords (not the normal user login, which could have an additional security feature like 2FA).