Domain Name Service

IAM provides system-defined identity policies to define common actions supported by cloud services. You can also create custom identity policies using the actions supported by cloud services for more refined access control.

In addition to IAM, the Organizations service also provides Service Control Policies (SCPs) to set access control policies.

SCPs do not actually grant any permissions to an entity. They only set the permissions boundary for the entity. When SCPs are attached to an organizational unit (OU) or a member account, the SCPs do not directly grant permissions to that OU or member account. Instead, the SCPs only determine what permissions are available for that member account or those member accounts under that OU. The granted permissions can be applied only if they are allowed by the SCPs.

To learn more about how IAM is different from Organizations for access control, see How IAM Is Different from Organizations for Access Control?.

This section describes the elements used by IAM custom identity policies and Organizations SCPs. The elements include actions, resources, and conditions.

For details about how to use these elements to edit an IAM custom identity policy, see Creating a Custom Identity Policy.
For details about how to use these elements to edit a custom SCP, see Creating an SCP.

Actions

Actions are specific operations that are allowed or denied in an identity policy.

The Access Level column describes how the action is classified (List, Read, or Write). This classification helps you understand the level of access that an action grants when you use it in an identity policy.
The Resource Type column indicates whether the action supports resource-level permissions.
- You can use a wildcard (*) to indicate all resource types. If this column is empty (-), the action does not support resource-level permissions and you must specify all resources ("*") in your identity policy statements.
- If this column includes a resource type, you must specify the URN in the Resource element of your identity policy statements.
- Required resources are marked with asterisks (*) in the table. If you specify a resource in a statement using this action, then it must be of this type.
For details about the resource types defined by DNS, see Resources.
The Condition Key column contains keys that you can specify in the Condition element of an identity policy statement.
- If the Resource Type column has values for an action, the condition key takes effect only for the listed resource types.
- If the Resource Type column is empty (-) for an action, the condition key takes effect for all resources that action supports.
- If the Condition Key column is empty (-) for an action, the action does not support any condition keys.
For details about the condition keys defined by DNS, see Conditions.
The Alias column lists the policy actions that are configured in identity policies. With these actions, you can use APIs for policy-based authorization. For details, see Policies and Identity Policies.

The following table lists the actions that you can define in identity policy statements for DNS.

**Table 1** Actions supported by DNS
Action	Description	Access Level	Resource Type (*: required)	Condition Key	Alias
dns:zone:list	Grants permission to list the zones.	List	zone *	-	-
dns:zone:list	Grants permission to list the zones.	List	-	g:RequestTag/<tag-key> g:TagKeys g:EnterpriseProjectId	-
dns:zone:create	Grants permission to create a zone.	Write	zone *	-	-
dns:zone:create	Grants permission to create a zone.	Write	-	g:RequestTag/<tag-key> g:TagKeys g:EnterpriseProjectId	-
dns:zone:createBatchPublicZonesByName	Grants permission to create zones in batches.	Write	zone *	-	-
dns:zone:createBatchPublicZonesByName	Grants permission to create zones in batches.	Write	-	g:EnterpriseProjectId	-
dns:zone:get	Grants permission to obtain a zone.	Read	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:update	Grants permission to update a zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:delete	Grants permission to delete a zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:associaterouter	Grants permission to associate a VPC with a private zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:disassociaterouter	Grants permission to disassociate a VPC from a private zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:setProxyPattern	Grants permission to set recursive resolution proxy for private subdomains.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:transfer	Grants permission to transfer public domain names.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:list	Grants permission to list the record sets.	List	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:create	Grants permission to create a record set.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:create	Grants permission to create a record set.	Write	-	dns:RecordSetNames dns:RecordSetTypes	-
dns:recordset:get	Grants permission to obtain a record set.	Read	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:update	Grants permission to update a record set.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:update	Grants permission to update a record set.	Write	-	dns:RecordSetNames dns:RecordSetTypes	-
dns:recordset:delete	Grants permission to delete a record set.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:delete	Grants permission to delete a record set.	Write	-	dns:RecordSetNames dns:RecordSetTypes	-
dns:zone:setStatus	Grants permission to set the zone status.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:setStatus	Grants permission to set the record set status.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:setStatus	Grants permission to set the record set status.	Write	-	dns:RecordSetNames dns:RecordSetTypes	-
dns:recordset:associatehealthcheck	Grants permission to associate a record set with a health check.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:associatehealthcheck		Write	-	dns:RecordSetNames dns:RecordSetTypes	-
dns:recordset:disassociatehealthcheck	Grants permission to disassociate a record set from a health check.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:recordset:disassociatehealthcheck		Write	-	dns:RecordSetNames dns:RecordSetTypes	-
dns:ptr:list	Grants permission to list the PTR records.	List	ptr *	-	-
dns:ptr:list	Grants permission to list the PTR records.	List	-	g:RequestTag/<tag-key> g:TagKeys g:EnterpriseProjectId	-
dns:ptr:get	Grants permission to obtain a PTR record.	Read	ptr *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:ptr:create	Grants permission to create a PTR record.	Write	ptr *	-	dns:ptr:set
dns:ptr:create	Grants permission to create a PTR record.	Write	-	g:RequestTag/<tag-key> g:TagKeys g:EnterpriseProjectId	dns:ptr:set
dns:ptr:update	Grants permission to update a PTR record.	Write	ptr *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:ptr:set
dns:ptr:delete	Grants permission to delete a PTR record.	Write	ptr *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:ptr:set
dns:tag:get	Grants permission to query tags of a resource.	Read	zone	-	-
dns:tag:get	Grants permission to query tags of a resource.	Read	ptr	-	-
dns:tag:set	Grants permission to one or more tags to a resource.	Tagging	zone	g:ResourceTag/<tag-key>	-
dns:tag:set	Grants permission to one or more tags to a resource.	Tagging	ptr	g:ResourceTag/<tag-key>	-
dns:zone:createRetrieval	Grants permission to retrieve a zone.	Write	-	-	-
dns:zone:getRetrieval	Grants permission to query the zone retrieval status.	Read	-	-	-
dns:customLine:create	Grants permission to create a custom line.	Write	customLine *	-	-
dns:customLine:list	Grants permission to list the custom lines.	List	customLine *	-	-
dns:customLine:delete	Grants permission to delete a custom line.	Write	customLine *	-	-
dns:customLine:update	Grants permission to update a custom line.	Write	customLine *	-	-
dns:nameserver:list	Grants permission to list the name servers.	List	-	-	dns:zone:get
dns:nameserver:getZoneNameServer	Grants permission to query public DNS servers.	Read	-	-	-
dns:quota:list	Grants permission to list quotas.	List	-	-	dns:zone:get
dns:recordset:getPrivateRecordSetImport	Grants permission to query the import task record sets added to a private zone.	Read	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:privateRecordset:getImport
dns:recordset:getPrivateRecordSetImportTemplate	Grants permission to download the template for importing record sets added to a private zone.	Read	-	-	dns:privateRecordset:getImport
dns:recordset:createPrivateRecordSetImport	Grants permission to create an import task for record sets added to a private zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:privateRecordset:createImport
dns:recordset:deletePrivateRecordSetImportTask	Grants permission to delete the import task record sets added to a private zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:privateRecordset:deleteImport
dns:recordset:createPublicRecordSetImport	Grants permission to create an import task for record sets added to a public zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:publicRecordset:createImport
dns:recordset:getPublicRecordSetImport	Grants permission to query the import task for record sets added to a public zone.	Read	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:publicRecordset:getImport
dns:recordset:getPublicRecordSetImportTemplate	Grants permission to download the template for importing record sets added to a public zone.	Read	-	-	dns:publicRecordset:getImport
dns:recordset:deletePublicRecordSetImportTask	Grants permission to delete the import task for record sets added to a public zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	dns:publicRecordset:deleteImport
dns:zone:getExport	Grants permission to export zones.	Read	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:lineGroup:create	Grants permission to create a line group.	Write	lineGroup *	-	-
dns:lineGroup:list	Grants permission to list the line groups.	List	lineGroup *	-	-
dns:lineGroup:get	Grants permission to query a line group.	Read	lineGroup *	-	-
dns:lineGroup:delete	Grants permission to delete a line group.	Write	lineGroup *	-	-
dns:lineGroup:update	Grants permission to update a line group.	Write	lineGroup *	-	-
dns:endpoint:create	Grants permission to create a resolver endpoint.	Write	endpoint *	-	-
dns:endpoint:list	Grants permission to list the resolver endpoints.	List	endpoint *	-	-
dns:endpoint:get	Grants permission to query a specified resolver endpoint.	Read	endpoint *	-	-
dns:endpoint:update	Grants permission to update a resolver endpoint.	Write	endpoint *	-	-
dns:endpoint:delete	Grants permission to delete a resolver endpoint.	Write	endpoint *	-	-
dns:endpoint:createIpaddress	Grants permission to bind a specified IP address with a resolver endpoint.	Write	endpoint *	-	-
dns:endpoint:deleteIpaddress	Grants permission to unbind a specified IP address from a resolver endpoint.	Write	endpoint *	-	-
dns:endpoint:listIpaddresses	Grants permission to list the IP addresses bound to a resolver endpoint.	List	endpoint *	-	-
dns:endpoint:listVpcs	Grants permission to list the VPCs associated with a resolver endpoint.	List	endpoint *	-	-
dns:resolverRule:create	Grants permission to create a resolver rule to route queries originating from your VPC out of the VPC.	Write	resolverRule *	-	-
dns:resolverRule:list	Grants permission to list the resolver rules.	List	resolverRule *	-	-
dns:resolverRule:get	Grants permission to query a resolver rule.	Read	resolverRule *	-	-
dns:resolverRule:update	Grants permission to update a resolver rule.	Write	resolverRule *	-	-
dns:resolverRule:delete	Grants permission to delete a resolver rule.	Write	resolverRule *	-	-
dns:resolverRule:associaterouter	Grants permission to associate a resolver rule with a VPC.	Write	resolverRule *	-	-
dns:resolverRule:disassociaterouter	Grants permission to disassociate a resolver rule from a VPC.	Write	resolverRule *	-	-
dns:zone:enableDnssecConfig	Grants permission to enable the DNSSEC configuration for a public zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:disableDnssecConfig	Grants permission to disable the DNSSEC configuration for a public zone.	Write	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:getDnssecConfig	Grants permission to query the DNSSEC configuration from a public zone.	Read	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-
dns:zone:listPublicZoneBatchOperationRecords	Grants permission to list batch operations of public zones.	List	-	-	dns:recordset:get
dns:zone:getPublicZoneBatchOperationResult	Grants permission to download the public zones that failed to be operated in a batch operation.	Read	-	-	dns:recordset:get
dns:recordset:batchImportPublicRecordSet	Grants permission to import record sets added to public zones.	Write	-	-	-
dns:zone:createAuthorizeTxtRecord	Grants permission to authorize a zone.	Write	-	-	-
dns:zone:getAuthorizeTxtRecord	Grants permission to query the zone authorization status.	Read	-	-	-
dns:zone:getDomainDetection	Grants permission to query the detection result of a public zone record set.	Read	zone *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	-

Each API of DNS usually supports one or more actions. Table 2 lists the supported actions and dependencies.

**Table 2** Actions and dependencies supported by DNS APIs
API	Action	Dependencies
GET 01 /v2/zones	dns:zone:list	-
POST 05 /v2/zones	dns:zone:create	dns:tag:set dns:quota:list
GET 01 /v2/zones/{zone_id}	dns:zone:get	-
PATCH 03 /v2/zones/{zone_id}	dns:zone:update	-
DELETE 02 /v2/zones/{zone_id}	dns:zone:delete	ces:siteMonitorRule:showHealthCheck ces:siteMonitorRule:put ces:siteMonitorRule:delete ces:siteMonitorRule:list
GET 01 /v2/zones/{zone_id}/nameservers	dns:zone:get	-
GET /v2/zones	dns:zone:list	-
POST 02 /v2/zones	dns:zone:create	vpc:vpcs:get dns:tag:set dns:quota:list
GET 04 /v2/zones/{zone_id}	dns:zone:get	-
PATCH 06 /v2/zones/{zone_id}	dns:zone:update	-
DELETE 05 /v2/zones/{zone_id}	dns:zone:delete	-
GET /v2/zones/{zone_id}/nameservers	dns:zone:get	-
POST /v2/zones/{zone_id}/associaterouter	dns:zone:associaterouter	vpc:vpcs:get
POST /v2/zones/{zone_id}/disassociaterouter	dns:zone:disassociaterouter	vpc:vpcs:get
GET /v2/zones/{zone_id}/recordsets	dns:recordset:list	-
POST /v2/zones/{zone_id}/recordsets	dns:recordset:create	dns:recordset:associatehealthcheck ces:siteMonitorRule:showHealthCheck ces:siteMonitorRule:put ces:siteMonitorRule:delete ces:siteMonitorRule:list dns:quota:list
GET /v2/zones/{zone_id}/recordsets/{recordset_id}	dns:recordset:get	-
PUT 02 /v2/zones/{zone_id}/recordsets/{recordset_id}	dns:recordset:update	-
DELETE 01 /v2/zones/{zone_id}/recordsets/{recordset_id}	dns:recordset:delete	dns:recordset:disassociatehealthcheck ces:siteMonitorRule:showHealthCheck ces:siteMonitorRule:put ces:siteMonitorRule:delete ces:siteMonitorRule:list
GET /v2/recordsets	dns:recordset:list	-
PUT /v2/zones/{zone_id}/statuses	dns:zone:setStatus	-
GET /v2.1/recordsets	dns:recordset:list	-
POST /v2.1/zones/{zone_id}/recordsets	dns:recordset:create	dns:recordset:associatehealthcheck ces:siteMonitorRule:showHealthCheck ces:siteMonitorRule:put ces:siteMonitorRule:delete ces:siteMonitorRule:list dns:quota:list
GET 03 /v2.1/zones/{zone_id}/recordsets	dns:recordset:list	-
GET 01 /v2.1/zones/{zone_id}/recordsets/{recordset_id}	dns:recordset:get	-
PUT 03 /v2.1/zones/{zone_id}/recordsets/{recordset_id}	dns:recordset:update	-
DELETE 02 /v2.1/zones/{zone_id}/recordsets/{recordset_id}	dns:recordset:delete	dns:recordset:disassociatehealthcheck ces:siteMonitorRule:showHealthCheck ces:siteMonitorRule:put ces:siteMonitorRule:delete ces:siteMonitorRule:list
PUT /v2.1/recordsets/{recordset_id}/statuses/set	dns:recordset:setStatus	-
POST /v2.1/zones/{zone_id}/recordsets/batch/lines	dns:recordset:create	dns:recordset:associatehealthcheck ces:siteMonitorRule:showHealthCheck ces:siteMonitorRule:put ces:siteMonitorRule:delete ces:siteMonitorRule:list dns:quota:list
PUT /v2.1/zones/{zone_id}/recordsets	dns:recordset:update	-
DELETE /v2.1/zones/{zone_id}/recordsets	dns:recordset:delete	dns:recordset:disassociatehealthcheck ces:siteMonitorRule:showHealthCheck ces:siteMonitorRule:put ces:siteMonitorRule:delete ces:siteMonitorRule:list
GET /v2/reverse/floatingips	dns:ptr:list	-
GET 02 /v2/reverse/floatingips/{region}:{floatingip_id}	dns:ptr:get	-
PATCH 01 /v2/reverse/floatingips/{region}:{floatingip_id}	dns:ptr:create	eip:publicIps:get dns:tag:set dns:quota:list
PATCH 04 /v2/reverse/floatingips/{region}:{floatingip_id}	dns:ptr:update	-
PATCH 03 /v2/reverse/floatingips/{region}:{floatingip_id}	dns:ptr:delete	-
GET /v2/{project_id}/{resource_type}/tags	dns:tag:get	-
GET 02 /v2/{project_id}/{resource_type}/{resource_id}/tags	dns:tag:get	-
POST /v2/{project_id}/{resource_type}/{resource_id}/tags	dns:tag:set	-
DELETE /v2/{project_id}/{resource_type}/{resource_id}/tags/{key}	dns:tag:set	-
POST /v2/{project_id}/{resource_type}/{resource_id}/tags/action	dns:tag:set	-
POST /v2/{project_id}/{resource_type}/resource_instances/action	dns:tag:get	-
POST /v2.1/customlines	dns:customLine:create	dns:quota:list
GET /v2.1/customlines	dns:customLine:list	-
DELETE /v2.1/customlines/{line_id}	dns:customLine:delete	-
PUT /v2.1/customlines/{line_id}	dns:customLine:update	-
GET /v2/nameservers	dns:nameserver:list	-
GET /v2/quotamg/dns/quotas	dns:quota:list	-
POST /v2.1/linegroups	dns:lineGroup:create	dns:quota:list
GET /v2.1/linegroups	dns:lineGroup:list	-
GET /v2.1/linegroups/{linegroup_id}	dns:lineGroup:get	-
PUT /v2.1/linegroups/{linegroup_id}	dns:lineGroup:update	-
DELETE /v2.1/linegroups/{linegroup_id}	dns:lineGroup:delete	-

Resources

A resource type indicates the resources that an identity policy applies to. If you specify a resource type for any action in Table 3, the resource URN must be specified in the identity policy statements using that action, and the identity policy applies only to resources of this type. If no resource type is specified, the Resource element is marked with an asterisk (*) and the identity policy applies to all resources. You can also set condition keys in an identity policy to define resource types.

The following table lists the resource types that you can define in identity policy statements for DNS.

**Table 3** Resource types supported by DNS
Resource Type	URN
resolverRule	dns:<region>:<account-id>:resolverRule:<resolver-rule-id>
lineGroup	dns::<account-id>:lineGroup:<line-group-id>
customLine	dns::<account-id>:customLine:<custom-line-id>
zone	dns::<account-id>:zone:<zone-id>
endpoint	dns:<region>:<account-id>:endpoint:<endpoint-id>
ptr	dns:<region>:<account-id>:ptr:<ptr-id>

Conditions

Condition Key Overview

A Condition element lets you specify conditions for when an identity policy is in effect. It contains condition keys and operators.

The condition key that you specify can be a global condition key or a service-specific condition key.
- Global condition keys (with the g: prefix) apply to all actions. Cloud services do not need to provide user identity information. Instead, the system automatically obtains such information and authenticates users. For details, see Global Condition Keys.
- Service-specific condition keys (with the abbreviation of a service name plus a colon as the prefix, for example, dns) apply only to operations of the xx service. For details, see Table 4.
- The number of values associated with a condition key in the request context of an API call makes the condition key single-valued or multivalued. Single-valued condition keys have at most one value in the request context of an API call. Multivalued condition keys can have multiple values in the request context of an API call. For example, a request can originate from at most one VPC endpoint, so g:SourceVpce is a single-valued condition key. You can tag resources and include multiple tag key-value pairs in a request, so g:TagKeys is a multivalued condition key.
A condition operator, condition key, and a condition value together constitute a complete condition statement. An identity policy can be applied only when its request conditions are met. For supported condition operators, see operators.

Service-specific condition keys supported by DNS

The following table lists the condition keys that you can define in identity policies for DNS. You can include these condition keys to specify conditions for when your identity policy is in effect.

**Table 4** Service-specific condition keys supported by DNS
Service-specific Condition Key	Type	Single-valued/Multivalued	Description
dns:RecordSetNames	string	Multivalued	Filters access by record set name. The name can contain only lowercase letters and cannot have the trailing dot.
dns:RecordSetTypes	string	Multivalued	Filters access by record set type. The type can be A, AAAA, MX, CNAME, TXT, NS, SRV or CAA.