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What Is DNS (Domain Name System)? | IBM

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NetworkCompute and serversCloudChrystal R. ChinaMichael GoodwinDNS serverstime-to-live, or TTL, valueconfigured by the domain ownerSubscribe todayDNS resource recordDNS zoneExplore IBM NS1 ConnectManaged DNSservice level agreements (SLAs)cybersecuritysecurity protocolsminimize DNS attack surfacesDNSSEC adds a layer of security to DNS lookupstwo-factor authentication (2FA)primary serverthe Internet Assigned Numbers Authority (IANA)Internet Corporation for Assigned Names and Numbers (ICANN)Guide Experience desktop as a service on IBM Cloud Empower your remote and hybrid workforce with desktop as a service on IBM Cloud, achieving performance and security without compromise. Read the guideInsight Maximizing performance: Why separating DNS from your CDN matters Discover how separating DNS from your CDN can lead to improved performance, cost savings and resilience. Learn why managing DNS independently allows more control over traffic steering, performance monitoring and resilience across multiple CDN providers. Read the insightInsight 4 key questions to evaluate when choosing an external DNS provider Selecting the right DNS provider is crucial for managing traffic, ensuring resilience and optimizing performance. Discover the 4 essential factors you must consider, from risk profile and developer needs to managing multiple CDNs and performance requirements. Read the insightExplainer Understanding managed DNS: Simplifying internet traffic management Learn how managed DNS enhances performance and security, reduces latency and streamlines your operations. Discover the differences between managed and self-managed DNS, and explore the key benefits for your business. Read the articleInsight Is self-hosting authoritative DNS right for large enterprises? Explore the benefits and challenges of self-hosting authoritative DNS for large enterprises. Learn about the hidden complexities of self-hosting and why managed DNS solutions might be the better choice for scalability, resilience and cost-efficiency. Read the insightExplore NS1 ConnectExplore cloud networking solutionsCloud networking servicesExplore Managed DNS ServicesBook a live demo

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