Spark Rack Knowledgebase

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.

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.

Support article

Where to find and manage advanced DNS behavior and troubleshooting

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

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.

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.

Support article

How to configure DNS zones and records

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

Support article

How to safely change a delegation, DNSSEC, wildcard, caching, or advanced DNS configuration

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

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.

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Verification checklist for DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

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.

Support article

Troubleshooting advanced DNS behavior and troubleshooting

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

Support article

Troubleshooting DNS zones and records

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

Support article

Understanding DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

Support article

Understanding DNS Troubleshooting & Advanced DNS

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

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DNS Records & Zones: integrations and dependencies

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

Support article

DNS Troubleshooting & Advanced DNS: integrations and dependencies

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

Support article

Best practices for DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

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.

Support article

DNS terminology explained: zones, records, resolvers, and authoritative nameservers

DNS terminology explained: zones, records, resolvers, and authoritative nameservers is a practical Spark Rack customer guide about DNS zones, records, delegation, caching…

Support article

Security checklist for DNS Records & Zones

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

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.

Support article

Planning a change involving advanced DNS behavior and troubleshooting

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

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.

Support article

Common mistakes with advanced DNS behavior and troubleshooting and how to avoid them

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

Support article

Common mistakes with DNS zones and records and how to avoid them

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

Support article

Recovering from a failed change to advanced DNS behavior and troubleshooting

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

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.

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.

Support article

What to include in a support request about DNS Troubleshooting & Advanced DNS

This article is part of the Spark Rack DNS knowledgebase and covers DNS Troubleshooting & Advanced DNS.

Support article

DNS Records & Zones: frequently asked questions

This article is part of the Spark Rack DNS knowledgebase and covers DNS Records & Zones.

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.

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.

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…

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.

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…

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TXT records explained: verification, policy, and service metadata

TXT records explained: verification, policy, and service metadata is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name…

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.

Support article

DKIM records explained: selectors, public keys, and message signatures

DKIM records explained: selectors, public keys, and message signatures is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and…

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.

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.

Support article

CAA records explained and how they can block certificate issuance

CAA records explained and how they can block certificate issuance is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name…

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…

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.

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.

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.

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.

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.

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.

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.

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.

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.

Support article

Wildcard DNS records: what they match and what they do not match

Wildcard DNS records: what they match and what they do not match is a practical Spark Rack customer guide about DNS zones, records, delegation, caching, validation, and name…

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.

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…