Remove entries in security group which allows DNS(TCP port 53 and UDP port 53 ) access from public IP.

24 Times Used
22 MAY 2019

It is AWS best practice to remove entries in security group which allows DNS access from public IP to reduce possibility of breach. Allowing unrestricted DNS access can increase threats such as Denial of Service (DoS) attacks or Distributed Denial of Service (DDoS) attacks.

Workflow Template

Gets Security Groups in a specific AWS Region for EC2 service.
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Fulfils organizational obligation(if any) before taking any action on an AWS resource.
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Filters the security group which allows DNS(TCP port 53 and UDP port 53 ) access from public IP.
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Revoke Security Group Ingress in a specific AWS Region for EC2 service.
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