Record Management Functions
Create, modify, and delete DNS records, and view the information contained in these records.
Creating/Modifying/Deleting a Record
You can create, modify, and delete the following types of records. You can execute the same request on multiple records at the same time.
- NS
- A
- AAAA
- CNAME
- MX
- TXT
- LBR (latency-based routing)
- PTR
- SRV
Limiting Values
| Item | Limiting Values |
|---|---|
| Number of Records that Can Be Specified | 10,000 per zone |
| Supported Record Type | A, AAAA, CNAME, MX, NS, TXT, LBR, PTR, SRV |
| Record Type with Wildcard Support | A, AAAA, MX, CNAME, TXT |
| Record Type | Item | Limitations | Required | |
|---|---|---|---|---|
| A | Record Name |
Length: 1 - 63 characters Available character type: Alphanumeric characters, hyphens (-), wildcards (*), and at marks (@) |
Yes | |
| TTL |
60 - 86,400 seconds *When there is no value entered, the TTL value of the zone is given priority |
|||
| Value |
Available character type: Alphanumeric characters and dots (.) Must be a valid IPv4 address |
Yes | ||
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
| Weight |
0 - 100 Available character type: Numeric characters |
*1 | ||
|
Health Check IP Address |
Length: 1 - 32 characters Alphanumeric characters and dots (.) |
*2 | ||
|
Health Check Port No. |
Length: 1 - 5 characters Available character type: Numeric characters |
*2 | ||
|
Health Check Host Name |
Length: 0 - 255 characters Available character type: Single-byte characters |
*3 | ||
|
Health Check Path |
Available character type: Single-byte characters Only omittable when failover is selected in the policy |
*3 | ||
| AAAA | Record Name |
Length: 1 - 63 characters Alphanumeric characters, hyphens (-), wildcards (*), and at marks (@) |
Yes | |
| TTL |
60 - 86,400 seconds *When there is no value entered, the TTL value of the zone is given priority |
|||
| Value |
Alphanumeric characters and colons (:) Must be a valid IPv6 address |
Yes | ||
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
| Weight |
0 - 100 Available character type: Numeric characters |
*1 | ||
|
Health Check IP Address |
Length: 1 - 32 characters Available character type: Alphanumeric characters and dots (.) |
*2 | ||
|
Health Check Port No. |
Length: 1 - 5 characters Available character type: Numeric characters |
*2 | ||
|
Health Check Host Name |
Length: No more than 255 characters Available character type: Single-byte characters |
*3 | ||
|
Health Check Path |
Available character type: Single-byte characters | *3 | ||
| CNAME | Record Name |
Length: 1 - 63 characters Available character type: Alphanumeric characters, hyphens (-), and wildcards (*) |
Yes | |
| TTL |
60 - 86,400 seconds *When there is no value entered, the TTL value of the zone is given priority |
|||
| Value |
Length: 1 - 255 characters Available character type: Alphanumeric characters, multi-byte domains, dots (.), and hyphens (-) |
Yes | ||
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
| MX | Record Name |
Length: 1 - 63 characters Alphanumeric characters, dots (.), hyphens (-), wildcards (*), and at marks (@) |
Yes | |
| TTL |
60 - 86,400 seconds *When there is no value entered, the TTL value of the zone is given priority |
|||
| Value |
Length: 1 - 255 characters Available character type: Alphanumeric characters, multi-byte domains, dots (.), and hyphens (-) |
Yes | ||
| Priority |
0 - 64000 Available character type: Numeric characters |
Yes | ||
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
| TXT | Record Name |
Length: 1 - 63 characters Available character type: Alphanumeric characters, underscores (_), hyphens (-), wildcards (*), and at marks (@) |
Yes | |
| TTL |
60 - 86,400 seconds *When there is no value entered, the TTL value of the zone is given priority |
|||
| Value | Alphanumeric characters, single-byte spaces, and single-byte symbols other than double quotation marks (") | Yes | ||
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
| NS | Record Name |
Length: 1 - 63 characters Available character type: Alphanumeric characters and hyphens (-) |
Yes | |
| TTL |
60 - 86,400 seconds *When there is no value entered, the TTL value of the zone is given priority |
|||
| Value | Available character type: Alphanumeric characters, multi-byte domains, dots (.), and hyphens (-) | Yes | ||
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
| LBR | Record Name |
Length: 1 - 63 characters Available character type: Alphanumeric characters and hyphens (-) |
Yes | |
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
| PTR | Record Name | Character type: Alphanumeric characters, dots (.), and hyphens (-) | ||
| TTL |
60 - 86,400 seconds *When there is no value entered, the TTL value of the zone is given priority |
|||
| Value | Available character type: Alphanumeric characters, multi-byte domains, dots (.), and hyphens (-) | Yes | ||
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
| SRV | Record Name |
Length: 1 - 63 characters Available character type: Alphanumeric characters, dots (.), hyphens (-), and underscores (_) Specify using the "_<Service Name>._<Protocol Name>" format (Example: _ftp._tcp) |
Yes | |
| TTL |
60 - 86,400 seconds *When there is no value entered, the TTL value of the zone is given priority |
|||
| Value | Specify the priority, the weight, the port number, and the target in this order, separating the values with blank spaces | Yes | ||
| Priority |
0 - 64000 Available character type: Numeric characters |
Yes | ||
| Weight |
0 - 65535 Available character type: Numeric characters |
Yes | ||
| Port No. |
0 - 65535 Available character type: Numeric characters |
Yes | ||
| Target |
Length: 1 - 255 characters Available character type: Alphanumeric characters, multi-byte domains, dots (.), and hyphens (-) Specify using the format "<Record name of A record>.<Domain name>" Tip:
When the record name of the A record is "ftp-server-01" and the domain name is "example.com": Set it as "ftp-server-01.example.com" |
Yes | ||
| Memo |
Length: No more than 255 characters Available character type: Double-byte characters |
|||
*1: A required item when weighting has been selected using the policy.
*2: A required item when failover has been selected using the policy.
*3: An optional item when failover has been selected using the policy.
Points to Note
- You cannot set more than one record of the same record type and with the same value for the same host name.
- You cannot set CNAME and other records for the same host name at the same time.
- You cannot set LBR and other records for the same host name at the same time.
-
The following DNS records cannot be set:
- Records that are not in FQDN format
- Records with a dot (.) or hyphen (-) at the beginning or end of the record name
- SOA record settings cannot be changed.
- You cannot set an NS record for the root domain.
- Dynamic IP record settings (Dynamic DNS) are not supported.
- DNSSEC is not supported.
- Only the global IP (FloatingIP) provided by this service can be set as the record name for PTR. When setting a record name it is necessary to obtain the global IP in advance.
- For details on reverse DNS lookup, refer to How to Use Reverse DNS Lookup.
- For the target value of the SRV record, specify the record name of the A record in the same zone and the domain name.
- The weighting in SRV records is not handled as the weighting of weighted round robin functions.