Add an FQDN

To add an FQDN, follow the steps below:

1. In the main menu, select Global Balancing and Manage FQDNs.

   

2. Enter an FQDN name, for example www.example.com in the New Fully Qualified Domain Name textbox.
   Note: In LoadMaster firmware version 7.2.54.1 and earlier, the maximum number of possible FQDNs allowed is 256. For LoadMaster firmware version 7.2.55 or above, the number of possible FQDNs is limited by the size of the RAM available.
   Note: Wildcards are supported here, for example *.example.com matches anything with .example.com ending.
3. Click the Add FQDN button.
4. Click OK on the message that appears.

   

5. Select the relevant load balancing algorithm from the Selection Criteria drop-down list.
6. If the Selection Criteria is set to Location Based, you can specify whether or not to allow Fail Over.

   Select the relevant options for the Public Requests and Private Requests drop-down lists.

   Note: When the Fail Over option is enabled, if a request comes from a specific region and the target is down, the connection will fail over and be answered with the next level in the hierarchy. For example, if the Selection Criteria is Location Based - the country comes first in the hierarchy, then continent. If this is not available, the connection is answered by the nearest (by proximity) target. If this is not possible, the target with the lowest requests is picked. The Fail Over setting affects all targets.
7. The Isolate Public/Private Sites setting has been enhanced as of version 7.1-30. The checkbox has been migrated to two separate dropdown menus to allow more granular control of DNS responses. Existing behavior has been preserved and is migrated from your current setting, ensuring that no change in DNS responses is experienced. These new settings allow administrators finer control of DNS responses to configured FQDNs. Administrators may selectively respond with public or private sites based on whether the client is from a public or private IP. For example, administrators may wish to allow only private clients to be sent to private sites.

   Setting	Value	Client Type	Site Types Allowed
   Public Requests	Public Only Prefer Public Prefer Private All Sites	Public Public Public Public	Public Public, Private if no public Private, Public if no private Private and Public
   Private Requests	Private Only Prefer Private Prefer Public All Sites	Private Private Private Private	Private Private, Public if no private Public, Private if no public Private and Public

   The following table outlines settings and their configurable values:

8. A Failure Delay (minutes) can be set if needed. If a Failure Delay is set, another option called Site Recovery Mode becomes available. Refer to the Enabling Fail Over section for further information on these options.
   Note: Following a completely failed health check, the GEO LoadMaster waits for the specified number of minutes before taking the site out of rotation.
9. Enable/disable the Enable Local Settings check box, as needed. If enabled, configure the TTL and Stickiness options.
10. Enable or disable Unanimous Cluster Health Checks. If this option is enabled, if any IP addresses fail health checking – the other FQDN IP addresses in the same cluster is forced down. For further information, please refer to the Scheduling Methods section.
11. Enter the IP address of the domain in the IP address text box.
    Note: The entry limit was increased to 64 IP addresses in LoadMaster firmware version 7.2.50.
    Note: In LoadMaster firmware versions prior to 7.2.50, there is an entry limit of 16 IP addresses per FQDN. If you attempt to add more than this, you get an error message saying Too many IP addresses already specified.
12. If needed, select the Cluster name.
13. Click Add Address.
14. Select the type of health checking to be performed from the Checker drop-down list. For further information regarding health checking options, refer to the FQDN Health Check Options section.
15. Select the Additional Records type to configure records for a specific FQDN. You can add, modify, or delete additional TXT, CNAME, and MX records to an FQDN. For more information and instructions, refer to the Additional Records section.