The DNS wiki

Every page, by section. New to DNS? Start here for the guided path; the sections below run roughly beginner to advanced.

Foundations#

fundamentals · anatomy-of-a-query · query-types · ip-address-spaces · foundations-osi · foundations-layer2 · foundations-vlans · ntp

Servers and zones#

Zones overview · auth · forward · delegations · stub · transfer

Records#

Records overview · a · aaaa · cname · mx · ns · ptr · soa · txt · srv · caa · https-svcb · sshfp · tlsa · email-records · reverse-dns · record-types

Security and integrity#

dnssec · dnssec-troubleshooting · dnsviz · dot-doh · caa-policy · ddns · split-horizon · cloudflare-hardening

Tools and troubleshooting#

dig-along · dig-examples · dig-flags · dig-phonebook · nslookup-and-dig · wireshark-dns-filters · when-its-dns

Reference#

glossary · rfc-index · record-types · reverse-dns · dig-phonebook

It was DNS. It is always DNS.