Unable to apply Apply the changes to all zones: zones remain unchanged

• Tools & settings > DNS Templates > Apply DNS Template Changes > Apply the changes to all zones does not add new records to Domains > example.com > DNS settings with no error in UI.
• Records were customized/removed in Domains > example.com > DNS settings.

Cause

Records modified in the Tools & settings > DNS Templates are modified in the zone (if they were not changed by users before that).

Resolution

Restore DNS records for each domain or globally from command-line:

From UI for each domain:

1. Log into Plesk,
2. Click on Domains > example.com > DNS Settings > Reset to defaults.

From command-line for all domains:

1. Connect to the server via SSH.

2. Restore DNS Template for all domains:

   # plesk db -N -e "select domains.name,IP_Addresses.ip_address from IP_Addresses,domains,dom_param where IP_Addresses.id = dom_param.val and domains.id = dom_param.dom_id and dom_param.param = 'ip_addr_id'" | while read domain ip; do plesk bin dns --reset $domain -ip $ip; done