Master/Slave Reverse Zones

Master Reverse Zone

While in the Master zone, your hostname is pointed to an IP address, using the Master Reverse zone allows you to point an IP address to a hostname. The Master/Slave Reverse Zones are available only for Premium M, Premium L, DDoS Protection M, DDoS Protection L and Enterprise plans.

Master reverse zone is so useful because:

• Enables mapping of IP addresses to hostnames.
• Enhances DNS configuration for servers and network setups.
• Improves credibility and spam filtering in email servers by setting up PTR records.

How to add it in 4 easy steps?

1. Login to your account.
2. Click on the "create zone" button in the DNS Hosting section.
3. Choose a type of zone (Master Reverse zone).
4. Enter the zone name:
   - For IPv4, use the format 1.0.0.127 for IP 127.0.0.1
   - For IPv6, use the format 1.2.3.4.5.6.7.8.9.0.1.2.3.4.5.6.7.8.9.0.1.2.3.4.5.6.7.8.9.0.1.2 for IP 2109:8765:4321:0987:6543:2109:8765:4321
   * You can write the IP and the subnet and a generator to create the zone or enter the reversed name manually.

Tips:

The Reverse zone name has to be in a specific format. The name starts with your IP address, written backward. If your IP is 1.1.115.125., you need to reverse it to 125.115.1.1. After the zone is created you will be able to add the PTR record(s) pointed to your domain(s). When you create the Master Reverse zone, you need to ask the IP owner to delegate the management of the IP to our servers.

Video tutorial: How to add Master Reverse DNS zone?

Slave Reverse Zone

The Slave/Backup Reverse DNS zone is the read-only copy of the DNS records. This means that the DNS records cannot be added directly to the Slave/Backup Reverse DNS zone. The Slave/Backup Reverse DNS zone can receive the updated records only from the Master Reverse zone of the DNS server. So, we can say that Slave Reverse DNS zone: 

• Provides backup for DNS records.
• Ensures high availability and failover capabilities.
• Keeps DNS records synchronized with the Master Reverse Zone.

How to add it in 5 easy steps?

1. Log in to your ClouDNS account.
2. Click on the "create zone" button in the DNS Hosting section.
3. Choose a type of zone (Master Reverse zone).
4. Enter the zone name:
   - For IPv4, use the format 1.0.0.127 for IP 127.0.0.1
   - For IPv6, use the format 1.2.3.4.5.6.7.8.9.0.1.2.3.4.5.6.7.8.9.0.1.2.3.4.5.6.7.8.9.0.1.2 for IP 2109:8765:4321:0987:6543:2109:8765:4321
5. Enter the Master server IP.
   * You can write the IP and the subnet and a generator to create the zone or enter the reversed name manually.