Understanding DNS

Learn how DNS works, what each record type does, and how to edit them safely.

All DNSWordPress

Richard Sutherland

11-03-2026

Beginner

1.

DNS Fundamentals: How the Internet Turns Names into Numbers

#AuthoritativeNameserver
#DnsCache
#DnsLookup
+5

20

8 min

Richard Sutherland

12-03-2026

Beginner

2.

DNS Players: Who Does What in the Domain Ecosystem

#DnsHost
#DnsZoneEditor
#DomainRegistrar
+5

12

8 min

Richard Sutherland

13-03-2026

Beginner

3.

Common DNS Records: What Your Domain’s Instructions Actually Say

#ARecord
#CnameRecord
#DnsRecordLookup
+5

17

9 min

Richard Sutherland

14-03-2026

Intermediate

4.

How to Change DNS: Editing Records Without Breaking Things

#AuthoritativeNameserver
#DigCommand
#DnsBackup
+5

13

10 min

Richard Sutherland

15-03-2026

Intermediate

5.

Pointing a Domain: A Records, CNAMEs, and Subdomains

#AaaaRecord
#ApexDomain
#ARecord
+5

25

9 min

Richard Sutherland

16-03-2026

Intermediate

6.

Email DNS Records: What to Add So Mail Works and Stays Out of Spam

#DkimSelector
#DmarcAlignment
#DmarcPolicy
+5

13

1

11 min

Richard Sutherland

17-03-2026

Advanced

7.

SRV Records: Service Discovery Beyond Web and Mail

#Autodiscover
#Dig
#Port
+5

17

9 min

Richard Sutherland

18-03-2026

Advanced

8.

Reverse DNS: Why Your Server’s Identity Matters

#Dig
#Fcrdns
#InAddrArpa
+5

12

9 min

Richard Sutherland

19-03-2026

Intermediate

9.

DNS Propagation: Why Changes Aren’t Instant (and How to Check)

#AuthoritativeAnswer
#DnsCache
#DnsPropagation
+5

12

11 min

Richard Sutherland

20-03-2026

Advanced

10.

DNS Security: Protecting Your Domain from Hijacking and Tampering

#CaaRecord
#CachePoisoning
#DnsOverHttps
+5

11

1

12 min