Applies To:Show Versions
- 11.5.9, 11.5.8, 11.5.7, 11.5.6, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1
Overview: Redirecting DNS queries using a CNAME record
When you want to redirect DNS queries for a web site to a different web site, create a wide IP that represents the original web site, and add a pool configured with a CNAME to the wide IP to redirect the requests to the new destination.
Perform these tasks to redirect a DNS request using a wide IP, which includes a pool that is configured with a CNAME.
Creating a pool using a CNAME
- On the Main tab, click The Pools list screen opens. .
- Click Create.
In the Name field, type a name for the pool.
Names must begin with a letter, and can contain only letters, numbers, and the underscore
(_) character.Important: The pool name is limited to 63 characters.
- From the Configuration list, select Advanced.
In the CNAME field, type the canonical name of the zone to which you
want GTM to send DNS queries.
Tip: When you provide a canonical name, you do not add members to the pool, because the CNAME record always takes precedence over pool members. Additionally, a pool with a CNAME is not monitored for availability.
- Click Finished.
Creating a wide IP with a CNAME pool
- On the Main tab, click The Wide IP List screen opens. .
- Click Create. The New Wide IP screen opens.
In the Name field, type a name for the wide IP.
Tip: You can use two different wildcard characters in the wide IP name: asterisk (*) to represent several characters and question mark (?) to represent a single character. This reduces the number of aliases you have to add to the configuration.
- From the Pool list, select the CNAME pool, and then click Add.
- Click Finished.
Viewing statistics for wide IP CNAME resolutions
- On the Main tab, click The Global Traffic statistics screen opens. .
- From the Statistics Type list, select Wide IPs. Information displays about the cumulative number of DNS name resolution requests processed by the wide IP, and the number of requests load balanced using specific methods.