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For cPanel & WHM version 66.

(Home >> DNS Functions >> Edit DNS Zone)

Overview

This feature allows you to edit the records in a domain’s DNS zone file.

Warning:

  • You must configure your DNS records correctly to allow visitors to access the domains.
  • DNS zones that reside on other Write-only DNS servers in a DNS cluster do not appear in this interface.

To edit a DNS zone or view zone information, select the desired domain from the Choose a Zone to Edit menu and c lick  Edit . A new interface will appear.

Zone and server information

The top of the Edit DNS Zone interface displays the following zone and server information:

  • cPanel first — The cPanel & WHM version and build number on which you created the DNS zone.
  • update_time — The Unix date and time of the last update to the zone file.
  • Cpanel::ZoneFile::VERSION — The zone file version that cPanel & WHM uses.
  • hostname — The server's hostname.
  • latest — The current cPanel & WHM version on the server.
  • Zone file for — The DNS zone's domain.
  • $TTL — The default time to live (TTL), in seconds. This value specifies how long clients cache DNS zone data. 

Edit DNS Zone

The Edit DNS Zone interface displays a table of the domain's DNS entries in the following columns:

  • Domain — The domain name.
  • TTL — The DNS entry's TTL.
  • Record Type — The DNS record type.

Warning

You must set the Class value to IN for each DNS zone.

Record Type

The following table lists the most common DNS record types:

Record TypeDescriptionDetails
SOAStart of Authority record.

Contains authoritative information. Authoritative information includes the following information:

  • The authoritative nameserver’s hostname.
  • The server administrator’s contact email with a period (.) in place of the @ character.
  • The following time-related data:
    • The serial number, which includes the year, month, date, and time at which you last edited the record.
    • The time interval during which clients wait before they refresh zone data.
    • The time interval during which clients wait before they try again after a failed refresh attempt.
    • The time interval that the record remains valid after clients refresh the zone data.
    • The minimum TTL.
NSNameserver record.Identifies a domain's authoritative  DNS servers.
AIPv4 address record.Matches a domain name to an IPv4 address. 
AAAAIPv6 address record.Matches a domain name to an IPv6 address.
MX  Mail Exchange record.

Identifies the servers that handle mail for a domain. A preference number for each MX record determines in which order other mail servers use a domain's mail servers.

Note:

A lower preference number indicates a higher priority. A preference number of 0 indicates the highest priority.


CNAMECanonical name record.

Matches a domain name to an alias.

CAACertificate Authority (CA) Authentication record.

Controls which CAs can issue SSL certificates for a domain.

Important:

  • We strongly recommend that you add CAA records in this interface or via the following WHM API 1 functions:The system stores these records in the RFC 3597 format. You can only add CAA records directly to your DNS zone file if you use the BIND nameserver.
  • MyDNS does not support CAA records.

Add entries

Use the empty text boxes below the Add New Entries Below this Line heading to add new entries to the DNS zone.

Warning:

You must configure your DNS records correctly to allow visitors to access the domains.

After you enter the desired information, click Save.

Set a separate IP address for the domain and mail server

If you change the IP address of the domain's A record, your mail server's IPv4 address also automatically changes. This occurs because the standard zone template uses a CNAME record to point the mail server to the domain's A record.

To assign a different IPv4 address to the mail server, perform the following steps:

  1. Change the MX record value to mail.$domain., where $domain. represents the domain. For example, change example.com. to  mail.example.com.

    Important:

     You must include the trailing period after mail.example.com. 

  2. Select CNAME from the Record Type menu.
  3. Click Save.

To change the zone template so that all new domains create MX records that assign your mail server a different IP address, use WHM's  Edit Zone Templates interface ( Home >> DNS Functions >> Edit Zone Templates ).

Additional documentation