This article highlights the reason of a configuration commit failure with error message "Check-out failed for Network security daemon (/usr/sbin/nsd) without details"

The error can seen due to multiple reasons. However, one out of a few would be when we try to add a configuration which requires a certificate but the associated certificate is not present in the device. The commit will fail with below error: 

user@router# commit check
error: Check-out failed for Network security daemon (/usr/sbin/nsd) without details
error: configuration check-out failed

This is an expected behavior. We can either add a new certificate or import an existing one to the device and then commit the configuration.  

Note: Make sure that the certificate ID of the existing or newly added certificate matches the configuration.