X
Жарияланған: 2026-07-06 | Жаңартылған: 2026-07-06
DNS recнемесеds tell the Internet how to connect сіздің домен to websites, email, SSL validation, apps, verification қызметs, және security settings. A points to IPv4, AAAA points to IPv6, CNAME points one hostname to another, MX controls email delivery, TXT stнемесеes verification және email authentication, CAA controls SSL certificate authнемесеities, және SRV defines қызмет locations fнемесе certain apps.

Who This Guide Is Fнемесе
This guide is fнемесе:
· Users learning DNS basics
· Вебsite owners setting up доменs
· Кәсіби электрондық пошта users
· Agencies және hosting providers suppнемесеting DNS questions
· Users troubleshooting website, email, SSL, CDN, немесе app connections

Befнемесеe You Start
Befнемесеe you start, prepare:
· DNS provider access
· Current nameservers
· DNS backup
· Provider instructions fнемесе website немесе email
· Permission to edit recнемесеds
· Understжәнеing of affected қызмет

Step-by-Step Instructions
Step 1: Understжәне DNS Recнемесеds
DNS recнемесеds are instructions fнемесе website, email, verification, SSL, apps, және security.
· One домен can have many recнемесеds
Step 2: A Recнемесеds
A recнемесеds point hostnames to IPv4 addresses.
· Common fнемесе root website және subдоменs
Step 3: AAAA Recнемесеds
AAAA recнемесеds point hostnames to IPv6 addresses.
· Wrong IPv6 can cause issues fнемесе some users
Step 4: CNAME Recнемесеds
CNAME points one hostname to another hostname.
· Use fнемесе www, CDN, website builders, және apps
Step 5: MX Recнемесеds
MX controls wмұнда email is delivered.
· Copy priнемесеity values carefully
Step 6: TXT Recнемесеds
TXT stнемесеes text fнемесе verification және authentication.
· SPF, DKIM, DMARC, Google, Microsoft, SSL, SaaS
Step 7: SPF Recнемесеds
SPF is a TXT recнемесеd listing authнемесеized sending servers.
· Avoid multiple SPF recнемесеds fнемесе same host
Step 8: DKIM Recнемесеds
DKIM is a TXT немесе CNAME recнемесеd used fнемесе email signing.
· Copy long values exactly
Step 9: DMARC Recнемесеds
DMARC tells receivers how to hжәнеle SPF/DKIM failures.
· Start carefully befнемесеe strict policies
Step 10: CAA Recнемесеds
CAA controls which certificate authнемесеities may issue SSL certificates.
· Restrictive CAA can block SSL issuance
Step 11: SRV Recнемесеds
SRV defines қызмет location fнемесе apps such as voice, chat, немесе collabнемесеation.
· Copy priнемесеity, weight, pнемесеt, және target
Step 12: NS, SOA, PTR, және DNSSEC Recнемесеds
NS identifies nameservers, SOA describes the zone, PTR is reverse DNS, және DNSSEC recнемесеds suppнемесеt validation.
· Most users do not manually edit SOA немесе all DNSSEC recнемесеds
Step 13: TTL
TTL controls cache time fнемесе recнемесеds.
· Lower in advance fнемесе planned migrations if appropriate

Troubleshooting
Вебsite Is Down
Possible reasons:
· Wrong A/AAAA/CNAME
· Wrong nameservers
· DNSSEC issue
What to do:
· Тексеру active DNS provider және recнемесеds

Электронды пошта Жоқt Receiving
Possible reasons:
· MX missing
· SPF/DKIM/DMARC wrong
What to do:
· Restнемесеe email recнемесеds

SSL Cannot Be Issued
Possible reasons:
· CAA blocks CA
· TXT/CNAME validation missing
What to do:
· Review CAA және validation recнемесеds

Verification Fails
Possible reasons:
· Recнемесеd added at wrong provider
· Host field wrong
What to do:
· Тексеру authнемесеitative nameservers және exact value

Common Mistakes
Mistake 1: Өңдеуing DNS at wrong provider
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 2: Deleting unkқазірn TXT recнемесеds
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 3: Fнемесеgetting MX during migration
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 4: Creating multiple SPF recнемесеds
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 5: Confusing CNAME with A recнемесеd
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 6: Fнемесеgetting CAA
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 7: Ignнемесеing DNSSEC
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 8: Using wrong host field
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 9: Жоқt copying MX priнемесеity
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.
Mistake 10: Changing too many recнемесеds at once
Review this item befнемесеe making changes немесе opening a suppнемесеt ticket.

Жиі қойылатын сұрақтар
1. What is an A recнемесеd?
It points to an IPv4 address.
2. What is AAAA?
It points to an IPv6 address.
3. What is CNAME?
It points one hostname to another hostname.
4. What is MX?
It controls email delivery.
5. What is TXT?
It stнемесеes verification, authentication, және security text.
6. What is SPF?
A TXT rule fнемесе authнемесеized mail senders.
7. What is DKIM?
An email authentication recнемесеd, usually TXT немесе CNAME.
8. What is DMARC?
A TXT policy fнемесе hжәнеling failed mail authentication.
9. What is CAA?
It controls certificate authнемесеity issuance.
10. What is TTL?
How long DNS may be cached.
Көмек керек пе? Біз әрқашан сіздің қызметіңіздеміз. Тапсырма жіберу
Авторлық құқық © 2006-2026 NICENIC INTERNATIONAL GROUP CO., LIMITED Барлық құқықтар қорғалған