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ANAME Records

WHAT ARE ANAME RECORDS?

ANAME records are alias (A records) that map the root of your domain to a hostname or FQDN (Fully Qualified Domain Name). Basically, they act like a CNAME record but at the root level.

When an ANAME record is created, Constellix resolves the target FQDN to an IP address or set of IP addresses. We then synthesize A records within the domain that point to the IP address(es) of the FQDN. ANAME record targets are constantly monitored and if the IP address(es) of the target change, the synthesized A records within your domain are updated immediately across all Constellix name servers.

ANAME records are commonly used to point the root of a domain to a CDN (Content Delivery Network).


ANAME RECORD FIELDS

Field Description

A) Name This is the host name for the record, typically a computer or server within your domain. Your domain name is automatically appended to the end of the “Name” field. For example, if you create a record with the name “www” the record would be defined as “www.example.com”. If the “Name” field is left blank, then it represents the root record of the domain. The root record for the base domain can also be referred to as the apex record and is represented using an @ symbol in some documentation.

B) TTL The TTL (Time to Live) in seconds is the length of time the record will cache in resolving name servers and web browsers. The longer the TTL, then remote systems will lookup the DNS record less frequently. Your nameservers will also receive less query traffic since most queries are answered by resolving name servers. Conversely, the shorter the TTL the faster any changes you make to your DNS will propagate in servers that have cached data. However, your domain will receive more query traffic.

Recommended values:

Records that are static and don’t change often should have TTL’s set between 1800 (being on the low end) to 86400 seconds (30 minutes to 1 day cache).

Records configured with Failover or that change often should have TTL’s set anywhere from 180 to 600 (3 to 10 minutes cache).

If a change is needed for a record with a high TTL, then the TTL can be lowered prior to making the change and then raised back up again after the changes were made.


C) Record Mode The Record Mode is how you enable settings like Failover, Record Pools, or Round Robin with Failover. You can read more about these settings here.

D) FQDN/Host A Fully Qualified Domain Name or a host. This can point to another existing CNAME record in the domain, or another location external to the domain.

E) Notes Add a helpful note with keywords so you can search for your records later.

F) Save Save your record changes and don’t forget to commit your changes after you’re done making record changes for this domain!


Related Tutorials:

DNS Failover for ANAME Record

VIDEO TUTORIAL: HOW TO ADD, EDIT, AND DELETE RECORDS

Add an ANAME Record

1.Select Managed DNS and click on Domains
AXFR1

2. Select the Domain Name you want to add a ANAME record to.
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3. Under the ANAME Records section, click the plus_icon to add a record.

4. In this screen, you will add the record information. Follow the steps below:

A) Name: This will be the hostname for your record and should be left blank to serve as the root of the record.
B) TTL: Edit the TTL. Time to Live is measured in seconds and is the amount of time the record will cache in resolving name servers and web browsers.
C) Record Mode: The Record Mode will be left at Standard for this tutorial. Please note, the other Record Mode options are covered in different tutorials.
D) FQDN/Host: Enter the destination host or Fully Qualified Domain Name you want to point to.
E) Note: Add a helpful note with keywords so you can search for your records later.
F) Save and Close: Save your changes. Don’t forget to commit your changes.