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Availability has several layers

# Mitigation is part of the system.

Understand what a network defence can absorb, what the application must handle and what the service agreement actually promises.

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## IN THIS DOCUMENT

[Volumetric and application attacks differ](https://koalavps.com/ddos-protection/#section-1)[Know the provider’s response](https://koalavps.com/ddos-protection/#section-2)[Protect the application](https://koalavps.com/ddos-protection/#section-3)[Prepare an incident path](https://koalavps.com/ddos-protection/#section-4)[Knowledge base](https://koalavps.com/resources/)

## Volumetric and application attacks differ

A large traffic flood can exhaust a link before the server sees it. A smaller stream of expensive requests can exhaust application workers or database connections. Different attacks require different controls.

## Know the provider’s response

Ask about detection, filtering scope, maximum protection, escalation and conditions for traffic restriction. Always-on protection should still have a documented limit. No host can credibly promise immunity from every denial-of-service event.

## Protect the application

Use bounded request sizes, timeouts, caching, rate limits and connection budgets appropriate to the service. Keep administration separate from public endpoints. Protect expensive work behind authentication or a queue where sensible.

## Prepare an incident path

Keep an external status channel, a contact procedure and the information needed to identify an attack. Test recovery from resource exhaustion. Confirm the mitigation scope, escalation path and limits applicable to your order.

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## Continue reading.

[Network ### A network should explain itself. Understand the Nordic region choices, the difference between a port speed and real throughput, and what evidence a hosting network…](https://koalavps.com/network/)[Guides ### Keep the machine yours. Security is an ongoing routine: reduce exposed surfaces, limit privileges, patch deliberately and make recovery possible.…](https://koalavps.com/server-security/)[Legal ### Availability promises need a definition. A useful service-level agreement states what is measured, how it is measured and what happens when the commitment is missed. Only …](https://koalavps.com/sla/)

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