Control, performance, and predictability are the main reasons for selecting a dedicated server hosting plan. Unfortunately, these same factors make these systems popular targets for DDoS attacks.
A DDoS attack is not simply a flood of traffic; rather, it is a means of stress-testing various aspects of a dedicated server’s architecture, including contracts and response times, and can maintain business continuity. With very cheap dedicated servers, an adequate preparation for a DDoS assault requires much more than simply installing a firewall and hoping for success.
1. Why do dedicated servers attract DDoS attention?
One reason why dedicated servers focus on DDoS attacks is that they generally support important and critical workloads. These include SaaS applications, payment processing systems, game servers, media streaming websites, API services, and websites with high volumes of traffic. When such applications and services are put offline by a DDoS attack, there is an immediate disruption to operations.
Shared hosting environments allow for the distribution of resources across multiple nodes. An attack on a dedicated server has a fixed resource threshold (e.g., CPU and bandwidth), and when that threshold is reached, there is no other node to absorb the shock of the attack. Attackers know this fact about dedicated servers; therefore, even a medium-sized DDoS attack can cause degradation of service when the traffic patterns are unanticipated and/or not filtered early enough.
2. DDoS attacks that harm dedicated servers
Not all DDoS attacks have the same characteristics or effect on the dedicated server.
The goal of volumetric DDoS attacks is to fill up the available bandwidth on the targeted server. An attacker does not care about the host’s application stack; if the upstream capacity is overwhelmed, then the server will not be accessed, regardless of how powerful it may be.
DDoS application layer attacks create the greatest level of deception. They utilize the same methods as a normal user on a host by attacking login pages, searching for items, and attacking any API endpoint. Most server owners don’t realize they’re being attacked until their website becomes painfully slow.
3. Bandwidth is not protection
A common misconception is that the more bandwidth you have, the more you are protected from DDoS attacks. However, a large bandwidth pipe is still capable of becoming clogged with malicious DDoS.
For dedicated server owners, knowing where your DDoS mitigation occurs is important. True DDoS protection occurs upstream, at the edge of the network, before the DDoS packets affect your server port.
To prepare for DDoS attacks, you need to ask your hosting provider the difficult questions:
- Is DDoS mitigation performed automatically or by a person?
- Is the traffic filtered at the data center level or is it sent somewhere else to be filtered first?
- What is the maximum attack size before null-routing takes place?
The answers to these types of questions are more important than knowing your raw bandwidth.
4. Server-level hardening
In addition to the upstream protection, all levels of the server must be prepared for a DDoS attack. The settings for TCP backlog, connection timeouts, and SYN cookies can all be tuned in advance to increase the server’s resilience against protocol flood attacks.
Application throttling is another area that is often overlooked against DDoS attacks. By rate-limiting login attempts, API calls, and expensive database queries, the application creates fewer resources needed to execute an attack. Instead of blocking everyone, we want to make every single request cost the attacker time and money.
5. Quick resolution time
Logging in real-time is important while under a DDoS attack. The logs will help you differentiate between legitimate spikes in activity and malicious flood attacks.
When a DDoS attack occurs, technical response is only one half of the overall response. The second half involves making decisions under pressure.
Server owners need a clear plan: they should know exactly when to show a ‘maintenance’ message, when to call for technical backup, and who will update the customers if the site goes down. If server owners wait until they are under attack to make these decisions, they may be forced to react quickly to a situation and execute panic-driven decisions. Having a simple response plan documented in advance dramatically reduces the amount of time the server is down.
6. Preparing for the aftermath
Many server operators become complacent whenever normal traffic resumes. That is a grave error.
The genuine education from an attack comes from the post-attack review.
- How did the attack occur?
- When was it recognized?
- Where did things break down?
These insights lead to future configuration updates and additional conversations with your provider.
Final considerations
For the dedicated server owner, DDoS preparation is not about paranoia; it’s about being real and prepared. Reliable hosting providers like MilesWeb offer built-in DDoS attack prevention along with compatible hosting plans.
DDoS attacks also provide a distraction to allow for other types of break-ins. Reviewing access logs, file integrity, and authentication events post-attack is crucial; generally, silence after a DDoS attack does not mean that you are now safe.
Attacks are less costly, easier to create, and more automated than before. The question isn’t if you’ll be attacked, but if your company and its infrastructure will be ready for it when it happens so your business will not be harmed.