# DnsDuplicateRuleGroupViolation
<a name="API_DnsDuplicateRuleGroupViolation"></a>

A DNS Firewall rule group that Firewall Manager tried to associate with a VPC is already associated with the VPC and can't be associated again. 

## Contents
<a name="API_DnsDuplicateRuleGroupViolation_Contents"></a>

 ** ViolationTarget **   <a name="fms-Type-DnsDuplicateRuleGroupViolation-ViolationTarget"></a>
Information about the VPC ID.   
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1024.  
Pattern: `.*`   
Required: No

 ** ViolationTargetDescription **   <a name="fms-Type-DnsDuplicateRuleGroupViolation-ViolationTargetDescription"></a>
A description of the violation that specifies the rule group and VPC.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1024.  
Required: No

## See Also
<a name="API_DnsDuplicateRuleGroupViolation_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/fms-2018-01-01/DnsDuplicateRuleGroupViolation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/fms-2018-01-01/DnsDuplicateRuleGroupViolation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/fms-2018-01-01/DnsDuplicateRuleGroupViolation)