VPS guide
DDoS Protection for a VPS: What You Need to Know
In short
A single attack can knock an unprotected VPS offline in seconds. Protection that filters traffic upstream, all the time, keeps it online. A firewall on the server can't.
DDoS protection for a VPS filters malicious flood traffic before it can overwhelm your server, keeping your sites, apps and game servers online during an attack.
What a DDoS attack does to a VPS
A Distributed Denial of Service (DDoS) attack floods your server with junk traffic from thousands of sources at once, exhausting its bandwidth, CPU or connection capacity until legitimate visitors can't get through. A VPS is a common target, especially one running game servers, busy apps or anything on a public IP. Without protection, even a modest attack can take it offline.
The main types of DDoS attack
There are three broad categories. Volumetric attacks (Layers 3–4) saturate your bandwidth with sheer traffic volume. Protocol attacks exhaust server resources like connection tables. Application-layer attacks (Layer 7) mimic real users to overwhelm your web server or database. Protection needs to cover all three, including the application-layer floods that look like real visitors.
How VPS DDoS protection works
The best mitigation happens upstream, at the network edge, before traffic ever reaches your server. Always-on protection continuously filters traffic through scrubbing systems that drop attack packets and let clean traffic through, far better than 'on-demand' protection that only activates after you're already down. Rate limiting, traffic fingerprinting and a large, well-connected network do the heavy lifting.
Signs your VPS is under attack
DDoS attacks aren't always obvious. The warning signs include a sudden, unexplained spike in inbound bandwidth, your VPS becoming slow or completely unreachable, CPU or network buffers maxing out, and a flood of connections from many different IP addresses at once. If your site or game server drops offline while your server's own resources look healthy, the bottleneck is usually the network, which points to a volumetric attack. Hosts with always-on mitigation absorb this automatically, so you often never notice it happened.
DDoS protection for game servers
Game servers (Minecraft, FiveM, Rust, CS2 and similar) are among the most frequently attacked workloads on a VPS, often by rival players trying to lag or crash a session. They're vulnerable because they run on known UDP ports and need consistently low latency. That makes always-on UDP filtering essential: on-demand protection that takes a minute to engage is useless mid-match. If you host game servers, confirm your provider mitigates Layer 3/4 UDP floods at the network edge without adding noticeable latency.
DDoS protection vs a firewall
A firewall and DDoS protection are not the same thing. A firewall (like iptables or ufw) filters traffic at your server based on rules. That's useful for closing ports and useless against a volumetric attack, because the flood fills your connection before the firewall sees it. DDoS protection works upstream, scrubbing traffic across a large network before it ever reaches your VPS. You want both: a firewall for access control, and network-level mitigation for volume.
What to look for in a protected VPS
Look for always-on, network-level DDoS protection included as standard (not a paid add-on), Layer 7 coverage as well as volumetric, and a provider with a well-connected UK network. Pair it with good server hygiene: see how to secure a Linux VPS and protecting your site from attacks. Every UK VPS plan we sell, EPYC or Ryzen, includes DDoS protection.
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See VPS plansQuestions
Is DDoS protection included with a VPS?
With good hosts, yes. Network-level DDoS protection should be included as standard rather than sold as an add-on. Check what's covered before you buy. Every one of our VPS plans includes it.
Can a VPS survive a DDoS attack?
Yes, with always-on upstream mitigation: attack traffic is filtered before it reaches your server. An unprotected VPS can be knocked offline quickly.
Do I need DDoS protection for a small site or game server?
Yes. Small sites and game servers are frequently targeted, sometimes purely for disruption. Protection keeps you online regardless of size.
How long do DDoS attacks usually last?
Most attacks last from a few minutes to a few hours, but some persist for days or come in repeated waves. With always-on mitigation the length barely matters, because filtering runs all the time and a long attack doesn't mean a long outage.
Does a firewall or Cloudflare protect my VPS from DDoS?
A server firewall controls access but can't stop a volumetric flood. Cloudflare can shield a website behind it, but it doesn't protect non-web services like game servers or your VPS's raw IP. For full coverage you need always-on, network-level mitigation at the host.