The Manage DNS option appears once you have selected a domain to manage AND that domain is a Primary domain. Manage DNS does not appear for replica domains, secondary (slave) domains, or replica domains.
DNS is one of the most misunderstood services on the Internet. If you are not familiar with DNS, consult your ISP, local guru, or a good book for help. YOU CAN MESS UP YOUR DOMAIN WEBSITE AND EMAIL WITH WRONG OPTIONS!
SOA Record
The SOA (start of authority) resource record. The SOA indicate that this name server is the authoritative source of information for this domain. There can be only one SOA for a domain.
  • Primary - what is the primary Start Of Authority for this domain
  • rootmail - who is to get mail for the domain master
  • Expire - seconds for secondary DNS server to expire it's data after failing to reach master
  • Retry - how often the secondary DNS server should try to connect after a refresh connect failure
  • Refresh - how often the secondary should check to insure it's data is current
  • Minimum - the time a RR can be cached before it should be discarded
MX Records
The MX Record specifies a mail exchanger, which should match an A record, that will accept mail for the domain.
  • Origin - domain mail is for
  • Host - host that will accept mail
  • Priority - priority of this server in the list of mail servers for delivery, lowest priority number is the server that is the final destination. Higher priority numbers indicate forwarders. Any number is a valid value. Usually multiples of 10 are used for priority.
NS Record
The NS (name server) record lists every name server that will answer for this domain.
  • Origin - domain this record applies
  • Name Server - name of the DNS server
A Records
A Records (address records) map host names to IP addresses.
  • Host Name - Authorotative Host Name
  • IP address - IP of host
  • check box if you want the address reverse mapped
CNAME Records
CNAME Records (canonical name records) are aliases for host names.
Here you can add an Alias for a host or another alias. Fully qualified hostnames should end with a period. Hostnames that do not end with a period are supposed to be relative names for this domain.
  • Alias - the alias name
  • Host - the A Record name for this host