DNS Record Management

- Domain Name

Enter a name for the domain to be created.

- Default Mode

- EXPRESS

Indicates that the domain name will operate in "Express" mode. In this mode, when the Express feature is enabled during DNS service creation, an Express profile is defined. This profile includes the master DNS server information from which the TR7 DNS Service will obtain records via Zone Transfer for the specified Domain. In order to perform this operation, the master DNS server (e.g., DC, PowerDNS, Bind) must allow Zone Transfer from the TR7 DNS service address. In Express mode, the TR7 GTM will retrieve the relevant records from the existing DNS server. All record management (add, edit, delete) will be performed on the external DNS server, and TR7 GTM will instantly apply these changes to its own records. For detailed information about Express Profiles, click here.

- Slave Server IPs

Slave DNS servers for the domain can be added here. By adding these, you authorize the respective slave DNS servers to perform Zone Transfer from TR7 GTM.

- DNSSEC

TR7 GTM supports DNSSEC for each domain name created. DNSSEC (Domain Name System Security Extensions) is a security protocol developed to make the DNS (Domain Name System) more secure. Since security was not a priority when DNS was initially designed, attackers have been able to exploit various vulnerabilities. DNSSEC was developed to address these vulnerabilities and to ensure safer internet browsing for users.

- Meta Data

Allows adding meta variables and values to DNS queries for the domain name being created.

- Record Name

Enter the name of the DNS record to be created.

- Record Type

Select the DNS record type.

- TTL

Specifies the TTL (Time-To-Live) duration to set the caching time for the record. A shorter TTL is recommended for redundancy and business continuity.

- Record Behavior

Automatically filled based on the "Default Mode" selected for the domain name. For more information, please refer to the "Domain Add Form" section above.

- Topological Selection

When enabled, "Topology" selection can be applied to the DNS record being added.

• Always: Always active under any condition and returned as the response to DNS queries regardless of other factors.
• Network: Configures the response to DNS queries based on IP and Subnet information defined in the Network List.
• Country: Sets the response to DNS queries based on the country information of the requester.
• Continent: Sets the response to DNS queries based on the continent information of the requester.
• ASN: Configures the response to DNS queries based on IP network groups defined by Autonomous System Numbers.

- Record

The section where the appropriate address is entered based on the record type for the specified "Record Name". For example, for an "A" type DNS record, the value might be entered as 83.11.173.211.

- HC

Determines which address will be returned in DNS queries based on the results of health checks, topological selections, and health scenarios defined for each record address. For more information, refer to the documents on Health Checks and Health Scenarios.

• Static: This record is always considered healthy and returned in responses under all conditions, regardless of health scenarios.
• Disabled: This record is always considered unhealthy and never returned in DNS responses, regardless of health scenarios.
• HC Scenario: Used to return only healthy records based on the results of defined health scenarios. For more details, click here.

- Balance Algorithm

Selects which algorithm will be used to return responses to DNS queries.

• All Records: Returns all healthy record addresses in a single response. If a disaster state is not triggered, returns all healthy records from the Main DC. If disaster recovery is active, returns all healthy records from the DR DC.
• First Healthy Record: Returns the first healthy record in the response.
• First 2 Healthy Record: Returns the first two healthy records.
• First 3 Healthy Record: Returns the first three healthy records.
• Round Robin: Returns a healthy record based on the Round Robin algorithm.
• Weighted Round Robin: Returns a healthy record based on the Weighted Round Robin algorithm. A weight is assigned to each record.
• Random: Returns a random healthy record.
• Weighted Random: Returns a random record from the healthy records based on assigned weights.
• Geographic Proximity: Returns the geographically closest healthy record in response to the DNS query.

- Fail-Safe Records

Specifies which response will be returned if all related DNS records in both the Main Datacenter and DR Datacenter are completely unhealthy.