# alb-desync-mode-check
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Checks if an Application Load Balancer (ALB) is configured with a user defined desync mitigation mode. The rule is NON\$1COMPLIANT if ALB desync mitigation mode does not match with the user defined desync mitigation mode. 



**Identifier:** ALB\$1DESYNC\$1MODE\$1CHECK

**Resource Types:** AWS::ElasticLoadBalancingV2::LoadBalancer

**Trigger type:** Configuration changes

**AWS Region:** All supported AWS regions except Asia Pacific (New Zealand), Asia Pacific (Thailand), Mexico (Central), Asia Pacific (Taipei) Region

**Parameters:**

desyncModeType: CSV  
Comma-separated list, in which customers can choose max 2 values among - 'defensive', 'strictest', and 'monitor'.

## AWS CloudFormation template
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To create AWS Config managed rules with AWS CloudFormation templates, see [Creating AWS Config Managed Rules With AWS CloudFormation Templates](aws-config-managed-rules-cloudformation-templates.md).