What is a DDoS Attack and How Can You Protect Yourself From Them?

Reduce the surface area of the attack

One of the first techniques for mitigating DDoS attacks is to reduce the attack surface area, limiting attackers’ options and allowing you to build protections in a single location. We want to make sure that our applications and resources aren’t exposed to ports, protocols, or applications with which they aren’t expecting to communicate. As a result, the number of probable sites of attack is reduced, allowing us to focus our mitigation efforts. You may achieve this in some circumstances by putting your processing resources behind Content Distribution Networks (CDNs)or Load Balancers and limiting direct Internet access to specific elements of your infrastructure, such as database servers. In other circumstances, firewalls or Access Control Lists (ACLs) might be used to limit the traffic that reaches your apps.

Plan for Scale

Bandwidth capacity and server capacity to absorb and mitigate attacks are the two most important factors to consider when dealing with large-scale volumetric DDoS attacks.

Transit capacity. Make sure your hosting provider has enough redundant internet connectivity to handle large volumes of traffic when designing your applications. Because the main goal of DDoS assaults is to disrupt the availability of your resources/applications, you should position them not only near your end users, but also near significant Internet exchanges, allowing your users to access your application even during high traffic levels. Web applications may also take things a step further by using Content Distribution Networks (CDNs) and smart DNS resolution services, which offer an extra layer of network infrastructure for providing content and resolving DNS requests from places that are typically closer to your end customers.

Server capacity. Because most DDoS assaults are volumetric and consume a lot of resources, it’s critical to be able to swiftly scale up or down your computer resources. This can be accomplished by using greater computer resources or those that have capabilities such as broader network interfaces or better networking that enable higher volumes. Load balancers are also commonly used to continuously monitor and redistribute loads between resources to avoid overwhelming any one resource.

Know what normal and abnormal traffic is

Every time we detect elevated levels of traffic hitting a host, the very baseline is to be able to only accept as much traffic as our host can handle without affecting availability. This concept is called rate limiting. More advanced protection techniques can go one step further and intelligently only accept traffic that is legitimate by analyzing the individual packets themselves. To do this, you need to understand the characteristics of good traffic that the target usually receives and be able to compare each packet against this baseline.

Install Firewalls for Sophisticated Application attacks

A good practice is to use a Web Application Firewall (WAF) against attacks, such as SQL injection or cross-site request forgery, that attempt to exploit a vulnerability in your application itself. Additionally, due to the unique nature of these attacks, you should be able to easily create customized mitigations against illegitimate requests which could have characteristics like disguising as good traffic or coming from bad IPs, unexpected geographies, etc. At times it might also be helpful in mitigating attacks as they happen to get experienced support to study traffic patterns and create customized protections.

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Contact us to more and protect all these types of attacks. You just need to give us a missed call or visit our website to tell us what you want from us, and we will do the rest for you. Don’t hesitate if you have any questions, just call us at our number and we will clear all your doubts and provide you the best service that you are looing for. Call us now.