Common examples of DNS records include:
| DNS Record | Function |
|---|---|
| A | A Records are the most basic type of DNS record. A Records are used to point a domain or subdomain to an IP address. |
| CNAME | CNAME records create an alias to an existing A record. |
| MX | Mail Exchanger (MX) records are used to help route email. MX records differ from A Records and CNAMEs in that they also require a “priority” value as a part of their entry. |
| NS | NS record are used to define which servers serve copies of a zone. |
| TXT | A TXT record is used to store text-based information (e.g., to hold SPF data and verify domain ownership). |
This record maps an IP Address to a hostname.
www IN A 192.168.1.12
Used to create an alias to an existing A record.
web IN CNAME www
NOTE: You cannot create a CNAME record pointing to another CNAME record.
Used to define where email should be sent to.
@ IN MX 1 mail.example.com. mail IN A 192.168.1.13
NOTE: Must point to an A record, not a CNAME.
Used to define which servers serve copies of a zone.
@ IN NS ns.example.com. @ IN NS ns2.example.com. ns IN A 192.168.1.10 ns2 IN A 192.168.1.11
NOTE: It must point to an A record, not a CNAME.
This is where Primary and Secondary servers are defined.
Used to store text-based information:
example.com. IN TXT "This domain name is reserved for use in documentation" # The character string from a TXT record used for SPF: "v=spf1 ip4:192.0.2.0/24 ip4:198.51.100.123 ip6:2620:0:860::/46 a -all" # An example of use for DMARC: "v=DMARC1;p=none;sp=quarantine;pct=100;rua=mailto:dmarcreports@example.com;" # Use for site verification: "google-site-verification=6P08Ow5E-8Q0m6vQ7FMAqAYIDprkVV8fUf_7hZ4Qvc8" # Use for custom email service: _amazonses.example.com. IN TXT "pmBGN/7MjnfhTKUZ06Enqq1PeGUaOkw8lGhcfwefcHU="
NOTE: Text records can be used: