Tag: DNS

December 7, 2022: We added a caveat to the solution, for those using a traffic steering mechanism, in this post. Security and network administrators can control outbound access from a virtual private cloud (VPC) to specific destinations by using a service like AWS Network Firewall. You can use stateful rule groups to control outbound access […]

In this blog post, I show you how to improve the distributed denial of service (DDoS) resilience of your self-managed Domain Name System (DNS) service by using AWS Global Accelerator and AWS Shield Advanced. You can use those services to incorporate some of the techniques used by Amazon Route 53 to protect against DDoS attacks. […]

November 16, 2020: We’ve updated the CloudFormation template and the launch stack URL used in this solution. July 24, 2019: We’ve added a link to a GitHub repository that contains the stack content for this solution. Controlling outbound communication from your Amazon Virtual Private Cloud (Amazon VPC) to the internet is an important part of […]

Over the coming weeks, we’ll be adding enhanced domain protections to Amazon CloudFront. The short version is this: the new measures are designed to ensure that requests handled by CloudFront are handled on behalf of legitimate domain owners. Using CloudFront to receive traffic for a domain you aren’t authorized to use is already a violation […]

Note from June 5, 2019: The approach and architecture in this post is recommended if you prefer more control over DNS servers or prefer to use AWS Managed Active Directory for DNS resolution, however there are some limitations to this approach and we added a “Limitations and additional considerations” section to this post to describe […]

Using a content delivery network (CDN) such as Amazon CloudFront to cache and serve static text and images or downloadable objects such as media files and documents is a common strategy to improve webpage load times, reduce network bandwidth costs, lessen the load on web servers, and mitigate distributed denial of service (DDoS) attacks. AWS […]

Distributed Denial of Service (DDoS) attacks are attempts by a malicious actor to flood a network, system, or application with more traffic, connections, or requests than it is able to handle. To protect your web application against DDoS attacks, you can use AWS Shield, a DDoS protection service that AWS provides automatically to all AWS […]

In my previous post, I showed how to use Simple AD to forward DNS requests originating from on-premises networks to an Amazon Route 53 private hosted zone. Today, I will show how you can use Microsoft Active Directory (also provisioned with AWS Directory Service) to provide the same DNS resolution with some additional forwarding capabilities. […]

As you establish private connectivity between your on-premises networks and your AWS Virtual Private Cloud (VPC) environments, the need for Domain Name System (DNS) resolution across these environments grows in importance. One common approach used to address this need is to run DNS servers on Amazon EC2 across multiple Availability Zones (AZs) and integrate them […]

Distributed denial of service (DDoS) attacks are sometimes used by malicious actors in an attempt to flood a network, system, or application with more traffic, connections, or requests than it can handle. Not surprisingly, customers often ask us how we can help them protect their applications against these types of attacks. To help you optimize […]