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DNS

DNS zones, record types, nameservers, propagation, caching, verification records, and advanced troubleshooting.

54 articles

DNS

Support article

Complete guide to DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This complete guide explains the full customer-facing lifecycle, the safest operating sequence, the checks that confirm success, and the evidence n

Support article

Complete guide to DNS Troubleshooting & Advanced DNS

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS. This complete guide explains the full customer-facing lifecycle, the safest operating sequence, the checks that confirm success, and

Support article

Where to find and manage DNS zones and records

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This navigation guide explains where the controls live, how list pages differ from detail pages, how to preserve context while saving, and how to c

Support article

How to configure advanced DNS behavior and troubleshooting

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS. This procedure provides a careful start-to-finish workflow. It is written to reduce accidental changes, duplicate submissions, incom

Support article

How to configure DNS zones and records

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This procedure provides a careful start-to-finish workflow. It is written to reduce accidental changes, duplicate submissions, incomplete provision

Support article

How to safely change a DNS record or zone value

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This change guide treats even a small portal edit as a controlled change: identify the target, record the old value, understand dependencies, apply

Support article

Verification checklist for DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This verification guide separates portal state, configuration state, and real-world behavior. A green status or successful save is useful evidence,

Support article

Verification checklist for DNS Troubleshooting & Advanced DNS

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS. This verification guide separates portal state, configuration state, and real-world behavior. A green status or successful save is u

Support article

Troubleshooting advanced DNS behavior and troubleshooting

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS. This troubleshooting guide begins with scope and evidence instead of random changes. The goal is to isolate the failing layer, prote

Support article

Troubleshooting DNS zones and records

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This troubleshooting guide begins with scope and evidence instead of random changes. The goal is to isolate the failing layer, protect working comp

Support article

Understanding DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This article explains the major concepts and relationships behind the feature so that labels, dates, statuses, identifiers, and dependencies are in

Support article

Understanding DNS Troubleshooting & Advanced DNS

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS. This article explains the major concepts and relationships behind the feature so that labels, dates, statuses, identifiers, and depe

Support article

DNS Records & Zones: integrations and dependencies

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This integration guide explains how the feature interacts with adjacent account, billing, hosting, domain, DNS, security, and notification function

Support article

Best practices for DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. These operating practices are intended for routine customer administration. They favor least privilege, documented changes, tested recovery, explic

Support article

Best practices for DNS Troubleshooting & Advanced DNS

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS. These operating practices are intended for routine customer administration. They favor least privilege, documented changes, tested r

Support article

Security checklist for DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This security checklist focuses on identity, authorization, credential handling, change evidence, recovery readiness, and safe communication with S

Support article

Security checklist for DNS Troubleshooting & Advanced DNS

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS. This security checklist focuses on identity, authorization, credential handling, change evidence, recovery readiness, and safe commu

Support article

Planning a change involving DNS zones and records

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This planning guide helps define the goal, owner, scope, timing, dependencies, risk, success criteria, and rollback decision before the first produ

Support article

Recovering from a failed change to DNS zones and records

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. This recovery guide is designed for a failed or uncertain change. It prioritizes stopping further damage, preserving evidence, restoring the last k

Support article

What to include in a support request about DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. A useful support request lets the assigned representative understand the target, reproduce the problem, see what changed, and distinguish an accoun

Support article

DNS Records & Zones: frequently asked questions

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones. These frequently asked questions cover the decisions and failure patterns customers most often encounter. Each answer includes the practical next s

Support article

DNS Troubleshooting & Advanced DNS: frequently asked questions

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS. These frequently asked questions cover the decisions and failure patterns customers most often encounter. Each answer includes the p

Support article

A records explained: pointing a hostname to an IPv4 address

A records explained: pointing a hostname to an IPv4 address is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers ev

Support article

AAAA records explained: pointing a hostname to an IPv6 address

AAAA records explained: pointing a hostname to an IPv6 address is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers

Support article

CNAME records explained and when not to use one

CNAME records explained and when not to use one is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers every day, but

Support article

MX records explained: how email delivery chooses a mail server

MX records explained: how email delivery chooses a mail server is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers

Support article

SPF records explained without the jargon

SPF records explained without the jargon is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers every day, but who st

Support article

DMARC records explained: policy, alignment, and reporting

DMARC records explained: policy, alignment, and reporting is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers ever

Support article

SRV records explained: priority, weight, port, and target

SRV records explained: priority, weight, port, and target is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers ever

Support article

NS records explained: delegation inside and outside a DNS zone

NS records explained: delegation inside and outside a DNS zone is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers

Support article

TTL explained: what it changes and what it does not control

TTL explained: what it changes and what it does not control is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers ev

Support article

What DNS propagation really means

What DNS propagation really means is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers every day, but who still nee

Support article

How DNS caching works and when flushing a cache helps

How DNS caching works and when flushing a cache helps is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers every da

Support article

Using nslookup and dig to check DNS records

Using nslookup and dig to check DNS records is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers every day, but who

Support article

Fixing a DNS SERVFAIL response

Fixing a DNS SERVFAIL response is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers every day, but who still need e

Support article

Fixing an NXDOMAIN response for a hostname that should exist

Fixing an NXDOMAIN response for a hostname that should exist is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers e

Support article

Fixing DNS_PROBE_FINISHED_NXDOMAIN in a web browser

Fixing DNS_PROBE_FINISHED_NXDOMAIN in a web browser is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers every day,

Support article

Using multiple A or AAAA records for one hostname

Using multiple A or AAAA records for one hostname is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers every day, b

Support article

Why the root or apex domain cannot always use a CNAME record

Why the root or apex domain cannot always use a CNAME record is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers e

Support article

Why DNS answers can differ between networks and resolvers

Why DNS answers can differ between networks and resolvers is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers ever

Support article

Fixing a DNSSEC DS-record mismatch after changing nameservers

Fixing a DNSSEC DS-record mismatch after changing nameservers is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name resolution. It is written for readers who may not administer servers