Minecraft anticheat guide
DDoS Protection vs Anticheat: Different Problems
DDoS protection filters floods before they reach your server, while an anticheat reviews what logged-in players do. Learn where each one fits.
What does DDoS protection stop?
DDoS protection filters traffic before it reaches the Minecraft process. Its job is to keep floods of connection attempts, malformed handshakes, and bulk packets from exhausting bandwidth, open sockets, or the login queue. It works at the network edge, through a hosting provider, a proxy placed in front of your server, or firewall rules you control.
It does not know who a player is or what that player did in the game. A flood that looks like ordinary traffic to a network filter passes straight through. A player running a cheat client that sends normal-looking traffic passes through too.
Filters usually act on volume, source patterns, and protocol abuse. Read your provider's documentation to see which of these it handles and which it leaves to you.
What does an anticheat see?
An anticheat runs inside the server and reads what authenticated players do after they join. It compares movement, combat, block interaction, and inventory actions against the rules its checks encode. Its inputs are player actions, so it needs a connected, logged-in player before it can raise an alert.
That scope is why an anticheat cannot stop a flood. By the time the anticheat sees a packet, the server has already accepted the connection and parsed the data. A flood that never completes a login never reaches the checks at all.
Keep the two tools separate in your head. One protects the door. The other reviews the people who walk through it, and only after they are inside.
Tuning does not change flood load either. Thresholds and check settings act only after a player is in the game, so an anticheat change will not reduce the number of connection attempts your server handles.
Where do the two overlap?
Most incidents belong to one layer. A few sit in the middle, and those are the ones that waste staff time when nobody owns them. The table maps common incident types to the layer that normally handles them.
The overlap is usually the last row. A bot group can look like a flood to the operator and like a set of accounts to the anticheat. Do not let either tool hide the other's evidence.
| Problem | Layer that handles it | Typical evidence | Who reviews it |
|---|---|---|---|
| Bandwidth flood from outside | Network or host protection | Traffic graphs, provider mitigation logs | Infrastructure owner |
| Handshake or login flood | Network protection, plus server connection limits | Connection counts, login failures | Infrastructure owner |
| Player moves through walls | Anticheat movement checks | Alert with position and sample data | Staff |
| Client sends abnormal combat packets | Anticheat packet checks | Alert with timing and hit data | Staff |
| Bot group joins and idles | Both, depending on the pattern | Connection spikes and idle player logs | Shared, with a written handoff |
How should I set up both layers?
Set up the layers in this order. Each step is small, and you can stop after any step if the evidence does not call for the next one.
Keep one shared timeline for incidents. Each entry needs a start time, a source, and the layer that acted.
Expect the two layers to report at different times. A network filter may drop a flood within seconds, while an anticheat alert appears only after a player has joined and acted. Log both timestamps. The gap between them is often the clearest evidence of which layer did the work.
What we have not verified
We have not tested any DDoS provider, proxy, or firewall in front of a Minecraft server. This article makes no claim about how much traffic any filter absorbs, how fast it reacts, or whether it blocks a specific attack type. Read your provider's documentation and test with traffic you own.
We also make no claim that an anticheat reduces flood damage. Anticheats read player actions, and a flood does not need to be a player.
FAQ
Will an anticheat block a DDoS attack?
No. An anticheat checks player actions after a player has connected. Network-level filtering has to handle flood traffic before it reaches the server.
Can DDoS protection stop cheaters?
Not by itself. Network filters look at traffic patterns, not game behavior, so a cheat client that sends ordinary-looking traffic passes that layer.
Why do bot joins show up in both tools?
Bots create a connection pattern the network layer can see and a behavior pattern the anticheat can see. Compare both sources before you assign a cause.
Do we need both on a small server?
Not always. Start with the layer that matches your most common incident type, then add the other when the evidence shows a gap. Check your host's default protection first.
What should an incident note include?
The start and end times, the layer that acted, the evidence each layer produced, and the decision. A note that names only the attack type cannot be reviewed later.