zone refresh using dnscmd command

The zonerefresh operation on a zone triggers checking version number in the primary(master) server's SOA record. If the version number on the primary server is higher than the secondary's version number, then a zone transfer operation will be initiated to update the secondary server.

To force zonefresh on a dnsserver through command line, do the following

1. Assume dns server "dnsserver" and zone name is "myrootdns.com".

dnscmd dnsserver /zonerefresh myrootdns.com