How does the DNS work?
DNS is similar to a phone book: if you want to call someone, you don't need to know where their house is—you just look them up in the phone book, and their number appears there. This makes it easy for people who don't know each other very well (like strangers) or don't have any reason to trust each other (like competitors) to connect with each other securely without having to exchange personal information first.
Similarly, the DNS converts human-readable domain names into IP addresses that computers can understand. When you type in a domain name like www.google.com, your computer asks a DNS server to translate that into an IP address so it can connect to Google's servers and load their website in your browser.
- What is SPF? Free2 m
- Video Introduction to SPF Free1 m 41 s
- A Brief History of SPF Free1 m
- How does SPF work? Free2 m
- SPF Tags: Syntax of an SPF Record Explained Free3 m
- How to create and publish SPF records? Free2 m
- SPF Authentication Failures Free3 m
- Video Explanation: SPF PermError Free1 m 39 s
- Quiz 430 m
- What is DMARC? Free1 m
- Video Introduction to DMARC Free1 m 15 s
- A Brief History of DMARC Free1 m
- How does DMARC work? Free2 m
- What is DMARC Policy? : None, Quarantine & Reject Free2 m
- Video Explanation: DMARC Policy Free1 m 40 s
- DMARC Tags Free2 m
- DMARC Aggregate (RUA) Reports Free3 m
- DMARC Forensic (RUF) Reports Free2 m
- How to Create and Publish a DMARC Record? Free3 m
- DMARC Authentication Failures Free3 m
- Video Explanation: Why does DMARC Fail? Free1 m 37 s
- Quiz 630 m