Managing DNS Records for Zones

Specifies a host which should be authoritative for the chosen class. This page explains how to add, edit and remove DNS records.

Overview

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Records can be added only for zones added from the DNS Manager control panel.

• DNS Zone type: This field displays the type of the DNS zone, which can be Master or Slave. It also displays the number of Transfer IPs for Master zones and the number of Master IPs for Slave zones.
• Hosts in this zone: Displays the first and last available IP (these parameters depend on the reverse zone IP class).

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Hosts in this zone is displayed only for reverse DNS zones.

• Last DNS Zone update source: The source of the last update. The DNS zone can be updated from the interface or from a remote update location. If the zone was update from a remote location, the icon is displayed. Click this icon to access the configuration page of the respective remote update location.

You can add new DNS records, view and delete existing records. Click the DNS zone name to manage the Zone records.

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For Slave DNS zones, you cannot add records and the current records are not displayed because the actual DNS records are transferred from the master server(s).

• S: Indicates if the record is enabled or disabled. The green icon indicates that the record is enabled. Click it to disable it. The red icon indicates that the record is disabled. Click it to enable it. The gray icon indicates that the record has been temporarily disabled by Round Robin, which hasn't been able to access it.

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The records status can be modified only for zones added from the DNS Manager control panel.

The gray icon indicates there are no Round Robin polls set up for the corresponding record.

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This column is available only for Forward Zones added from the DNS Manager control panel.

• Record Type: This is the type of the DNS record. There can be several types of records, based on the DNS Zone type.

Click here to view records for forward DNS zones.

Record Type	Details
IP Address (A)	Maps a hostname to a 32-bit IPv4 address. Type A rules have the following format: hostname. IN A XXX.XXX.XXX.XXX where: - XXX.XXX.XXX.XXX is the IP address for the hostname. - hostname. is the zone name or one of its subdomains. Examples: domain.com. IN A 1.2.3.4 subdomain.domain.com. IN A 1.2.3.4 domain.com. IN A [IP] Click here for more info on this type of record.
AAAA Record (AAAA)	Maps a hostname to a 128-bit IPv6 address. AAAA rules have the following format: hostname. IN AAAA:AAAA:AAAA:AAAA:AAAA:AAAA:AAAA:AAAA where: - AAAA:AAAA:... is the IPv6 address for the hostname. - hostname. is the zone name or a subdomain. Examples: domain.com. IN AAAA abcd🔢ffff:0:12:3:ab1:aa subdomain.domain.com. IN AAAA abcd🔢ffff:0:12:3:ab1:aa Click here for more info on this type of record.
Certification Authority Authorization (CAA)	Specifies one or more Certification Authorities (CAs) allowed to issue certificates for the domain. Format: hostname. IN CAA flags tag value where: - flags = 0–255 (critical flag) - tag = ASCII string identifying the property - value = value associated with the tag The CAA record contains a flags byte and a tag–value pair (“property”). Multiple CAA records can coexist. Available tags: - issue – authorizes a CA to issue certificates - issuewild – authorizes wildcard certificates - iodef – URL for reporting policy violations Examples: example.com. IN CAA 0 issue ";" example.com. IN CAA 0 issue "letsencrypt.org" example.com. IN CAA 0 issuewild "comodoca.com" example.com. IN CAA 0 iodef "mailto:example@example.com"
Alias (CNAME)	Alias (canonical name) pointing one hostname to another. Useful for multiple services on the same IP (ftp.example.com, www.example.com), or multiple HTTP servers on the same host. Format: hostname. IN CNAME servername. where: - hostname. is the zone name or a subdomain - servername. is an FQDN inside or outside the zone Examples: ftp.domain.com. IN CNAME inside.domain.com. ftp1.domain.com. IN CNAME outside.zone.com. k1._domainkey.domain.com. IN CNAME dkim.zone.com. RFC 1034: If a CNAME exists at a node, no other data must exist at that node. Click here for more info.
Nameserver (NS)	Maps a domain name to its authoritative name servers. Format: hostname. IN NS servername. where: - hostname. is the zone or subdomain - servername. is an authoritative nameserver Examples: domain.com. IN NS ns1.example.com. domain.com. IN NS ns2.example.com. Best practice: at least two NS records for each public domain. Click here for more info.
Mail exchanger (MX)	Maps a domain to its mail exchange servers. Format: hostname. IN MX preference servername. where: - hostname. = zone or subdomain - preference = priority (lower = higher priority) - servername. = mail server FQDN Examples: mail.domain.com. IN MX 10 domain.com. webmail.domain.com. IN MX 5 domain.com. Click here for more info.
Text record (TXT)	Allows arbitrary text in DNS. Used for SPF, DKIM, DMARC, verification, etc. Format: hostname. IN TXT "Text" Examples: domain.com. IN TXT "k=rsa; p=MEwwDQYerwqEWwE" subdomain.domain.com. IN TXT "this is a test" Click here for more info.
Service Record (SRV)	Specifies location of a service (protocol, port, target). Format: _Service._Protocol.Hostname. IN SRV TTL Priority Weight Port Target Parameters: - Service – symbolic service name - Protocol – TCP/UDP - Hostname. – domain - TTL – time to live - Priority – lower = higher priority - Weight – load balancing - Port – port number - Target – target hostname (not CNAME!) Examples: _service._tcp.domain.com. IN SRV 0 1 9 subdomain.domain.com. *._tcp.domain.com. IN SRV 0 0 0 . Click here for more info.
NAPTR Record (NAPTR)	Naming Authority Pointer. Used for rewrite rules (ENUM, SIP, etc.). Format: order preference services flag regexp replacement Parameters: - order – processing order - preference – secondary sort - services – resolution service - flag – next lookup modifier - regexp – primary rewrite rule - replacement – fallback rewrite rule Examples: domain.com. IN NAPTR 100 10 "u" "sip+E2U" "!^.$!sip:information@foo.se!i" . subdomain.domain.com. IN NAPTR 102 10 "u" "smtp+E2U" "!^.$!mailto:information@foo.se!i" . Click here for more info.

Click here to view records for reverse DNS zones.

Record Type	Details
Nameserver (NS)	Specifies a host which should be authoritative for the specified class. For class C reverse zones, NS records for $ORIGIN are accepted and classless delegation records are supported (RFC 2317, chapter 4). Important notes: • NS records for $ORIGIN appear bold in the interface. • A primary nameserver can be selected for zones (required by some local TLDs). • At least one NS must exist for $ORIGIN — recommended minimum is two for public domains. Class behavior: • Class A & B: NS records supported for $ORIGIN and inferior zones. Classless delegation not supported. • Class C: Classless delegation supported. DNS Manager can auto-generate matching CNAMEs if Automatically generate is enabled (available when subnet mask < 24 → numerical value > 24). Record format: ip_part.host_ip_addr.in-addr.arpa. IN NS servername. Where: • host_ip_addr.in-addr.arpa. → zone name • ip_part → remainder of the IP completing the address (varies by class) • servername. → authoritative nameserver hostname Examples: 1.2.3.in-addr.arpa. IN NS ns2.server.com. 1.2.3.in-addr.arpa. IN NS ns3.server.com. 0.1.2.3.in-addr.arpa. IN NS example.com. Click here for more information.
Reverse record (PTR)	Maps an IPv4 address to a hostname → used for reverse DNS lookup in the in-addr.arpa. domain. Record format: IPaddress IN PTR hostname. Where: • IPaddress → IPv4 address under IN-ADDR.ARPA • hostname. → forward hostname associated with that IP Example: 5.1.2.3.in-addr.arpa. IN PTR test.com. Click here for more information.
Alias for record (CNAME)	Canonical name alias mapping (supported only in Class C reverse zones, per RFC 2317). Record format: ip_part.network.host_ip_addr.in-addr.arpa. IN CNAME ip_part.host_ip_addr.in-addr.arpa. Where: • ip_part → IP completion segment • network → subnet mask • host_ip_addr.in-addr.arpa. → zone name Examples: 0.1.2.3.in-addr.arpa. IN CNAME 0.0.1.2.3.in-addr.arpa. 1.1.2.3.in-addr.arpa. IN CNAME 1.0.1.2.3.in-addr.arpa. 7.1.2.3.in-addr.arpa. IN CNAME 7.0.1.2.3.in-addr.arpa. Click here for more information.
Text record (TXT)	Stores arbitrary text — supports SPF, DomainKeys and other DNS-metadata functions. Record format: ip_part.host_ip_addr.in-addr.arpa. IN TXT "Text information" Where: • ip_part → completion segment of the IP • host_ip_addr.in-addr.arpa. → zone name • "Text information" → any text payload Example: 4.1.2.3.in-addr.arpa. IN TXT "This is a test" Click here for more information.

Click here to view record types for reverse IPV6 dns zones

Record Type	Details
Nameserver (NS)	Specifies an authoritative nameserver for an IPv6 reverse zone. NS records may be defined only for $ORIGIN. Record format: ipv6_part.host_ipv6_addr.IP6.ARPA. IN NS servername. Where: • ipv6_part → completes the IPv6 address when prepended to host_ipv6_addr • host_ipv6_addr.IP6.ARPA. → zone name • servername. → authoritative nameserver hostname Examples: 1.0.2.3.4.5.6.7.8.9.0.1.2.3.4.5.6.7.8.9.0.A.B.C.D.E.F.IP6.ARPA. IN NS example.com. 5.5.1.3.2.1.0.2.3.4.5.6.7.8.9.0.1.2.3.4.5.6.7.8.9.0.A.B.C.D.E.F.IP6.ARPA. IN NS example.com. For more details, see RFC 4291.
Reverse Record (PTR)	Maps an IPv6 address to a hostname → implements reverse DNS lookup in the IP6.ARPA domain. Record format: IPv6_address IN PTR hostname. Where: • IPv6_address → IPv6 reference in IP6.ARPA • hostname. → resolved canonical hostname Examples: 8.b.d.0.1.0.0.2.IP6.ARPA. IN PTR test.com. 1.1.1.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.B.D.0.1.0.0.2.IP6.ARPA. IN PTR test.com. *.1.1.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.B.D.0.1.0.0.2.IP6.ARPA. IN PTR test.com. For more details, see RFC 4291.

Click here to view record types for E.164 zones.

Record Type	Details
Nameserver (NS)	Maps a domain name to authoritative DNS servers. NS records are required for delegation. Record format: hostname. IN NS servername. Where: • hostname. → zone name or subdomain • servername. → authoritative nameserver Examples: 1.2.e164.arpa. IN NS ns1.example.com. 1.2.e164.arpa. IN NS ns2.example.com. 5.1.2.e164.arpa. IN NS ns1.example.com. Additional notes: • $ORIGIN NS records appear bold in interface • At least one NS required per zone (recommended minimum 2 for public domains) • Primary selection available in DNS Manager UI More info: IETF
NAPTR record (NAPTR)	Naming Authority Pointer record — used for URI resolution and rewriting, especially for telephony (ENUM). Record format: order preference services flag regexp replacement Where: • order → evaluation order when multiple records exist • preference → priority among identical order values • services → resolution protocol (e.g. sip, smtp) • flag → affects next DNS lookup stage • regexp → rewrite rule logic • replacement → fallback replacement string Examples: 1.2.e164.arpa. IN NAPTR 100 10 "u" "sip+E2U" "!^.*$! sip:information@foo.se!i" . 1.2.e164.arpa. IN NAPTR 102 10 "u" "smtp+E2U" "!^.*$! mailto:information@foo.se!i" . More info: IETF

• Value: Depending on the Record Type, this field displays an IP address, an alias, a name server, a host name, or a text. If the value is truncated, by clicking on View button you can see the whole value.
• Replacement
• Priority
• Weight
• Last update: The date the record was last modified (from the web based interface, or by updateurl).
• M: By clicking the Modify icon, you can edit the details of the corresponding DNS record.

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You can only edit records for zones added from the DNS Manager control panel.

Adding a DNS Record

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You can only add records for zones added from the DNS Manager control panel.

In order to add a DNS record, open the management page of the respective zone and click the Add DNS record button. The Add NEW record to DNS Zone page will open. If the DNS zone is a reverse zone, DNS Manager will display the value for Hosts in this zone (first and last available IP address; these parameters depend on the reverse zone IP class). In the next area, Record Type, you will choose the Record Type. Decide if you want the record to be enabled when you create it. The record is enabled checkbox is selected by default. The domain name can be automatically replaced by the name of the newly created domain if [domain] is specified in the domain name field. In order to have an IP address automatically replaced the [ip] tag must be used.

Editing a DNS Record

You can only edit records for zones added from the DNS Manager control panel. To edit a DNS record, click the modify icon (M column) in the DNS records list. You can change the Record Type by selecting the corresponding option from the Select Record Type drop-down box. You can also enable or disable a record by selecting or deselecting the record is enabled checkbox. If the DNS zone is a reverse zone, DNS Manager will display the value for Hosts in this zone (first and last available IP address; these parameters depend on the reverse zone IP class).

Removing DNS Records

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You can only delete records for zones added from the DNS Manager control panel.

• Go to the records list and select the checkboxes of the records you want to delete.
• Click the Remove Selected link at the top of the table.
• Confirm the removal operation and click OK.