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====== PowerDNS ======

http://www.thatfleminggent.com/2009/08/09/getting-a-powerdns-recursor-up-and-going-fast

http://www.tecmint.com/install-powerdns-poweradmin-mariadb-in-centos-rhel/

https://www.howtoforge.com/installing-powerdns-with-mysql-backend-and-poweradmin-on-debian-squeeze

  * **Recursor** is caching DNS resolver
  * **Authoritative Server** for authoritative DNS hosting

PowerDNS is a popular free DNS server that usually uses MySQL as the back-end and PowerAdmin as a web front-end.

:!: There is a package for the PowerAdmin web front-end, but don't use it.

===== Firewall Rules =====

Add filewall rules for:

|Ingress           |HTTP  |TCP       |80    |
|Ingress           |SSH   |TCP       |22    |
|Ingress & Egress  |DNS   |TCP & UDP |53    |

On CentOS, insert or modify:

<file>
vi /etc/sysconfig/iptables

-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state NEW -p udp --dport 53 -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 53 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT

service iptables restart
</file>

===== Recursion =====

<file>
vi /etc/pdns/pdns.conf

allow-recursion=10.0.0.0/24

recursor=8.8.8.8
</file>

===== PowerAdmin =====

PowerAdmin is the web interface for PowerDNS.

<file>
vi /var/www/html/inc/config.inc.php

<?php

$db_host		= 'localhost';
$db_user		= 'poweradmin';
$db_pass		= 'yourpassword';
$db_name		= 'powerdns';
$db_port		= '3306';
$db_type		= 'mysql';
$db_layer		= 'MDB2';

$session_key		= '6!WnDt(xp#GO]2dLSeVRYp8Fv]7jvV3me&KQ^RpF^W(wrW';

$iface_lang		= 'en_EN';

$dns_hostmaster		= 'hostmaster.yourdomain.com';
$dns_ns1		= 'pdns-01.yourdomain.com';
$dns_ns2		= 'pdns-02.yourdomain.com';

$dns_ttl 	        = '3600' 
?>
</file>

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