<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hello Wafa</div><div><br data-mce-bogus="1"></div><div>I used this Link <a href="https://www.claudiokuenzler.com/blog/844/powerdns-master-slave-dns-replication-mysql-backend">https://www.claudiokuenzler.com/blog/844/powerdns-master-slave-dns-replication-mysql-backend</a><br></div><div><br data-mce-bogus="1"></div><div>To config master/slave PowerDNS server with MySQL backend. In that document the keys was "supermasters" table in the backend and AXFR. Then I checked iptables firewall rules, that was all.<br><br>Good Loock<br><br>Regards</div><div><br></div><div data-marker="__SIG_PRE__"><div><br></div></div></div></body></html>