DDoS (Distributed Denial of Service) mitigation refers to the act of reducing or completely diminishing the impact of an attack on a network. The success of DDoS Mitigation service is measured when a network that is targeted in an attack is protected and kept up and running. In the past, most of the DDoS attacks were focused on the network layer and they were volumetric attacks with a massive amount of resources/computer power that was needed to bring down the
server. But today they are getting more sophisticated, targeted and focused around exploits at the Application layer.

Traditionally, investment in equipment on site and a high attack resistant network was required to prevent these sort of attacks. But with the advent of cloud computing and public cloud adoption becoming mainstream, DDoS protection and DDoS mitigation can be done through a cloud network.

How does DDoS Mitigation or DDoS protection work?

In general, a DDoS attack happens with an automated set of requests doing targeted and repeated set of requests to the destination server.

The DDoS mitigation service works in four stages:

  • Detection

The identification process must not stop or restrict the incoming traffic, but at the same time, the network must be able to identify and resist the attacking node in the network.

  • Response

The network needs to drop the malicious bot traffic intelligently and absorb only the heavy traffic in order for DDoS protection to be successful in this step.

  • Routing

The traffic is routed across multiple centers of data with the aim of providing a solution by
breaking it into chunks of manageable traffic thus, preventing a denial of service.

  • ¬†Adaptation

The network needs to adapt by forming new routes in order to avoid denial of service.

DDoS Protection

What is necessary for an efficient DDoS mitigation service?

The number of DDoS mitigation service providers may be many in number, but not every provider offers all the necessary features for an efficient service. To choose a mitigation service provider is important to consider the following features:

  • Customization

Each network has different amounts of traffic and set of rules and therefore when a threat has detected these rules should not be foreseen rather the rules must still be followed while adapting to the network changes. This can be done only with the help of customized services for specific networks with specific rules and traffic flow, like how AppTrana customizes its services for the specific client networks.

  • Expertise

The system may be automated to handle these threats, but to identify and prevent the threats that are sometimes missed by machines requires the augmentation of automated tools with the expertise and knowledge that only certified specialists can provide to effectively manage the DDoS protection and mitigation service

  • Flexibility

This is one of the most important features to prevent a denial of service from occurring as the network needs to be ready for ad-hoc changes in order to adapt by ignoring the threat, establishing page rules throughout the network to keep a site online despite the attack.

  • Reliability

The service provider needs to be available through the cloud network 24/7 to support by identifying the incoming threats and protect the network.

  • Network Size

The network size and the traffic flow should never affect the efficiency of the mitigation process as sometimes when the traffic and network size expand, the prevention goes out of control thus failing the mitigation process. It is essential that the service should be scalable.

  • Secondary protection

A network may have primary and secondary assets, including servers (web, DNS, Email, etc.,).

Most DNS servers are the single target of attacks, but the protection of secondary assets is a feature that needs to be considered before choosing a provider.

  • Pricing

Ultimately, everything has a cost, but the affordability and worth of a service need to be weighed and analyzed critically before making a decision.

  • Time

The time taken to identify and respond to such attacks is a key factor that needs to be inquired upon as this could make or break the entire mitigation process.

Therefore, choosing service providers like AppTrana who provide round the clock expertise and support by identifying and preventing attacks even before they may occur would help networks avoid denial of service.