Do manual: link
To activate the new record so that it can be looked up by DNS clients and other servers, you will need to click the Apply Changes button on the module's main page. If you are planning to add or edit several records, it is usually better to wait until all the changes are complete before hitting the apply button. If it is available, you can instead use the Apply Changes button at the bottom of the master zone page shown below. This uses the
ndc
command to tell BIND to re-read only the file for this zone, which can be much faster on a system that hosts are large number of domains.