DNS, or the Domain Name System, translates human-readable domain names into IP addresses that computers use to identify each other on the network.

What types of DNS services are there?

There are several types of DNS services, including authoritative DNS, which provides responses to queries about domains it is responsible for.

What is a DNS outage or downtime?

A DNS outage occurs when the Domain Name System fails to resolve domain names into IP addresses, leading to websites being inaccessible.

What can lead to DNS outages?

Several factors can lead to DNS outages, including DDoS attacks, maintenance issues with authoritative name servers, data center problems, bad configurations, and DNS propagation delays.

How can you check whether you are prepared for DNS failures?

You can simulate a DNS outage as an attack using tools like Steadybit to test your system's resilience against potential failures.

How to avoid DNS downtime?

To avoid DNS failures, it is essential to implement a robust DNS infrastructure that includes redundancy and proper configuration management.

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Infrastructure Failures

Simulate DNS Outages with Steadybit

24.12.2021

Testing DNS failures with tools like Steadybit helps identify vulnerabilities in how applications handle DNS disruptions. This proactive approach ensures systems remain resilient, even when DNS services are compromised.