Child pages
  • Zone Editor
Skip to end of metadata
Go to start of metadata

This documentation is for cPanel & WHM version 66.  The "RELEASE" version of our documentation can be found in the Version 64 Documentation space.

(Home >> Domains >> Zone Editor)

Overview

DNS (Domain Name Service) converts human-readable domain names (for example, example.com) to computer-readable IP addresses (for example, 192.0.32.10). DNS uses zone files that reside on your server to map domain names to IP addresses.

Several different types of records reside in a domain's zone file. This feature allows you to create, edit, and delete the following records:

  • AAAA
  • CAA (Certificate Authority Authorization Record)
  • CNAME (Canonical Name Record)
  • DMARC (Domain-based Message Authentication, Reporting, and Conformance)
  • MX (Mail Exchanger)
  • SRV (Service Record)
  • TXT (Text Record)

 

Note:

To access all available zone record types, your systems administrator must enable the Advanced Zone Editor feature in WHM's Feature Manager interface (Home >> Packages >> Feature Manager).

Domains

This interface displays your account's domains. For each domain in the list, you can perform some actions directly. Click the text to perform that action.

TextAction

A Record

Add an A record for this domain.
CNAME Record
Add a CNAME record for this domain.

MX Record

Add an MX record for this domain.
DNSSEC Record
Enable or disable DNSSEC for this domain.

Manage

Add or edit additional records for this domain.

To refresh the list of domains, click the gear icon () and select Refresh List.

Manage Zone

This interface displays the zone records for the selected domain. To filter the list of zone records, enter a name in the text box, or select one of the record type filters.

 

In This Document

Related Documentation

For Hosting Providers

Add a record

To add a record, perform the following steps: 

  1. If this account owns more than one domain, click Manage next to the domain that you wish to modify.

  2. Click the arrow next to Add Record to select a record type:

    • Add A Record —  This record maps hostnames to IP addresses. A records allow DNS servers to identify and locate your website and its various services on the Internet. Without appropriate A records, your visitors cannot access your website, FTP site, or email accounts.

      Note:

      cPanel configures your DNS records so that visitors can resolve your website and its services, such as FTP and email. Only add A records when you add a service that cPanel & WHM or your service provider does not provide.

    • Add AAAA Record — This record maps hostnames to IPv6 addresses. 

    • Add CAA Record — This record allows you to specify which certificate authority (CA) will issue an SSL certificate for a domain. To obtain the specific CAA information to enter, contact your SSL provider.

       Click to view the CAA parameters
      ElementDescriptionPossible values
      FlagWhether the CA will issue an SSL certificate if the CAA Resource Record contains unknown property tags. For more information about CAA record flags, read the RFC 6844 documentation.
      • 0 — Non-critical. The CA will issue an SSL certificate if the CAA Resource Record contains unknown property tags.
      • 1 — Critical. The CA will not issue an SSL certificate if the CAA Resource Record contains unknown property tags.
      TagThe CAA record's property type.

       

      • issue — Authorize a CA to issue a certificate for the domain.
      • issuewild — Authorize a CA to issue a wildcard certificate for the domain.
      • iodef — Specify a URL to which a CA may report policy violations.
      ValueThe CA's domain, or the CA's URL if you select the iodef element.


    • Add CNAME Record — This record creates an alias for another domain name, which DNS looks up. This is useful, for example, if you point multiple CNAME records to a single A record in order to simplify DNS maintenance.

      Note:

      You cannot point a CNAME record to an IP address.

    • Add DMARC Record — This record allows you to validate an email message's sender and filter spam email messages on your domain. If you select this option, the system creates a TXT record with a default DMARC record. The system also displays a form that allows you to specify the domain's DMARC policy (None, Quarantine, or Reject), as well as the following optional parameters:

       Click to view the DMARC parameters

      Note:

      If you do not specify a valid parameter, the system will not save the parameter when you create the record.

      OptionDescriptionPossible values
      Subdomain Policy

      The action that the system should perform when a subdomain on your domain receives spam email messages.

      • None — Do not perform any action for spam email messages.
      • Quarantine — Send spam email messages to a different folder on the account.
      • Reject — Reject spam email messages.
      DKIM ModeThe Domain Keys Identified Mail (DKIM) level that the system will enforce for the domain.
      • Relaxed — The system allows some email messages from domains that it does not recognize.
      • Strict — The system rejects all email messages from domains that it does not recognize. 
      SPF ModeThe Sender Policy Framework (SPF) level that the system will enforce for the domain.
      • Relaxed — The system allows some email messages from senders that it does not recognize.
      • Strict — The system rejects all email messages from senders that it does not recognize. 
      Percentage

      The percentage of email messages that you wish for the system to filter.

      Note:

      This parameter's value defaults to 100.

      An integer value between 0 and 100.
      Generate Failure Reports When

      The error reporting policy between the sender and receiver's Mail Transfer Agents.

       

      • Any checks fail — Send a report to both the sender and receiver if any email checks fail.
      • All checks fail — Only send a report to both the sender and receiver if all of the email checks fail.

      Report FormatThe format that the system uses to report an email message's possible spam status.
      • AFRF — Authentication Failure Reporting Format.
      • IODEF — Incident Object Description Exchange Format.
      Report Interval

      The amount of time, in seconds, that elapse between each aggregate email message report.

      Note:

      • This parameter's value defaults to 86400.
      • This value does not include email failure messages.

      A positive integer.
      Send Aggregate Mail Reports To

      A comma-delimited list of URIs to which to send aggregate email message reports.

      To add a size limit for the report, affix an exclamation point, a number, and a file size multiplier to the end of the URI. You can specify the following size multipliers:

      • k — Kilobytes.
      • m — Megabytes.
      • g — Gigabytes.
      • t — Terabytes.

      Note:

      If your URI includes a comma, you must URI-encode the comma.


      mailto:reports@example.com!50m
      Send Failure Reports To A comma-delimited list of URIs to which to send failure email message reports.mailto:reports@example.com!50m
    • Add MX Record —  This record allows you to route a domain's incoming mail to a specific server. Changes that you make to a domain's MX (Mail Exchanger) control where the system delivers email for a domain.
    • Add SRV Record — This record provides information about available services on specific ports on your server.

      Note:

      The SRV record must point at a hostname with an A (or AAAA) record. You cannot point an SRV record at a CNAME record.

    • Add TXT Record — This record contains text information for various services to read. For example, TXT records can specify data for the SPF, DKIM, or DMARC email authentication systems.
      Click the links below to view examples of each TXT record:

      Note:

      The TXT record text box accepts invalid data and does not issue a warning.

       SPF Records
      v=spf1 +a +mx +ip4:10.215.218.151 ~all
       DKIM Records

      v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA14CK7pzW3Q4NHyJv/NIUG2vxuW8cDLnrQyjnpf0XQCHkFMnBdampzVG/T15U4P7W3YKImR6aF+QhM6WRZdXaOQqdkkkGc+VdYnH415ZikqSvfwSQ+n2fdIEVHvOkLyl/qSQkNhijtz48qb874keiYimo9Gsdg7mlhURImqPlL9zsGFcBpogmW00bnwmeiyeFbBY+d0QJRAelECpIbdWQfiCq1tUMm1pMGI5GHmnJVs3ToPvRoH2J4SQpOO91smkwaQPEEdLVXTMpLuKcvOOjotwzeVX5A4RBfuAaKjk7z0xdkTnsDivFJSqqNBLtT0v8cv6JjDgWZ8pYKBC65mdWxwIDAQAB;

       DMARC Records

      v=DMARC1;p=none;rua=mailto:user@example.com

      Note:

      On servers that run CentOS 7, you may see a named warning about the absence of SPF resource records on DNS.

      • This warning is not relevant on CentOS 7 servers, because RFC 7208 deprecated SPF records. CentOS 7 servers use TXT records instead of SPF records.
      • Red Hat 7.1 and CentOS 7.1 both contain bind-9.9.4-23.el7, which is an updated version of BIND that complies with RFC 7208. To resolve this issue, update your operating system to a version that contains the updated version of BIND. For more information, read the the Red Hat Bugzilla case about SPF record errors.

  1. Enter the appropriate information for the record type that you selected.
  2. Click Add Record.

Edit a record

To edit a record, perform the following steps:

  1. If this account owns more than one domain, click Manage next to the domain you want to modify.

  2. Click Edit next to the record that you wish to edit.
  3. Change the information in the text boxes as necessary.
  4. Click Edit Record to save your changes, or click Cancel to discard them.

Delete a record

To delete a record, perform the following steps:

  1. If this account owns more than one domain, click Manage next to the domain you want to modify.

  2. Click Delete next to the record that you wish to remove.
  3. Click  Delete i n the confirmation dialog box .

Reset zone files

Warning:

This feature erases any modifications that you made to your zone records. The system attempts to save the domain's TXT entries. We recommend that you record any changes that you wish to save before you use this feature.


To reset your DNS zone files to the defaults that your hosting provider specifies, perform the following steps:

  1. If this account owns more than one domain, click Manage next to the domain that you wish to reset.
  2. Click the gear icon () and select Reset Zone.
  3. Read the warning about the consequences.
  4. Click Continue to reset your zone, or Cancel to return to the Manage Zone interface.

DNSSEC

Important:

This feature only appears if your system administrator disables DNS clustering and installs PowerDNS in either of the following interfaces:

DNS Security Extensions (DNSSEC) add a layer of security to your domains' DNS records. DNSSEC uses digital signatures and cryptographic keys to validate that DNS responses are authentic. These digital signatures protect clients from various forms of attack, such as Spoofing or a Man-in-the-Middle attack.

Important:

  • DNSSEC keys remain on a server after you terminate an account. If you restore an account on the same server from which you deleted it, the account’s DNSSEC keys remain valid.
  • If you transfer the account to another server, you must reconfigure DNSSEC for the domains and update the domain server records on the registrar. The system does not include DNSSEC keys in an account’s backup file.
 Click here for transfer instructions

To transfer an account with DNSSEC enabled domains, perform the following steps for each domain:

  1. Remove the Domain Server (DS) records from the registrar.
  2. Wait for the changes to propagate (This may take up to 72 hours).
  3. Disable DNSSEC on the domain (optional).
  4. Transfer the account to the new server.
  5. Enable DNSSEC on the new server.

If you do not remove the old DS records from the registrar, the domains may produce DNS resolution issues due to invalid DNSSEC responses.

Enable DNSSEC

To enable DNSSEC for a domain, perform the following steps:

  1. If this account owns more than one domain, click DNSSEC next to the domain you want to modify.

  2. Click Enable. The system will generate a new DNSSEC key, and a new line will appear that contains the following information:

    ColumnDescription
    Key TagAn integer value that identifies the domain's DNSSEC record.
    AlgorithmThe record's encrypted signature.
    Digest TypeThe algorithm type that constructs the digest. Select the digest type that your registrar supports.
    DigestAn alpha-numeric string that the algorithm generates.

Important:

After you generate the domain's DNSSEC key, you must configure a Domain Server (DS) record with your domain registrar. Click the links below for DS record instructions with some of the most popular domain registrars.

 GoDaddy

To configure a DS record with GoDaddy, perform the following steps:

  1. Click Manage.
  2. In the upper-right corner of the interface, select the list view.
  3. Select the domain for which to create a DS record. 
  4. In the DS Records section of the Settings interface, click Manage.
  5. Click Add DS Record.
  6. Enter the DNSSEC key's information in the text boxes and click Next. The system will validate the DS record information that you added.
  7. Click Next, and then click OK.
 Namecheap

To configure a DS record with NameCheap, perform the following steps:

  1. Click Domain List in the left menu.
  2. Select the domain for which to configure a DS record and click Manage.
  3. Click Advanced DNS.
  4. Move the DNSSEC toggle button to on. The DS records menu will appear.
  5. Click ADD NEW DS.
  6. Enter the DNSSEC key's information in the text boxes.
  7. Click SAVE ALL CHANGES.
 OpenSRS

To configure a DS record with OpenSRS, perform the following steps:

  1. Click Domains.
  2. Locate the domain for which to configure a DS record and click the domain's name.
  3. Scroll down to the DNSSEC section and click Edit. The DS records menu will appear.
  4. Enter the DNSSEC key's information in the text boxes.
  5. Click Save.

Disable DNSSEC

To disable DNSSEC for a domain, perform the following steps: 

  1. If this account owns more than one domain, click DNSSEC next to the domain you want to modify.
  2. Click Disable.

 

Important:

After you generate the domain's DNSSEC key, you must delete the DS record with your domain registrar. Click the links below for DS record instructions with some of the most popular domain registrars.

 GoDaddy

To delete a DS record with GoDaddy, perform the following steps:

  1. Click Manage.
  2. In the upper-right corner of the interface, select the list view.
  3. Select the domain for which to delete a DS record. 
  4. In the DS Records section of the Settings interface, click Manage.
  5. Locate the DS record that you wish to delete and click Remove. The system will validate the DS record information that you removed.
  6. Click Next.
  7. Click OK.
 Namecheap

To delete a DS record with NameCheap, perform the following steps:

  1. Click Domain List in the left menu.
  2. Select the domain for which to delete a DS record and click Manage.
  3. Click Advanced DNS.
  4. Click the (error) in the DS record's row to delete the record.
  5. Click SAVE ALL CHANGES.
  6. Move the DNSSEC toggle button to Off.
 OpenSRS

To delete a DS record with OpenSRS, perform the following steps:

  1. Click Domains.
  2. Locate the domain for which to delete a DS record and click the domain's name.
  3. Scroll down to the DNSSEC section and click the (minus) next to the Key Tag text box.
  4. Click Save.