DNS is the internet's phone book, translating domain names into IP addresses. Understanding DNS is essential for managing web properties and configuring IP addresses correctly.
Wat is DNS?
The Domain Name System (DNS) converts human-friendly domain names (like ipmarket.io) into IP addresses (like 185.199.108.1) that computers use to identify each other.
Without DNS, you would need to remember numeric IP addresses for every website you visit.
DNS Record Types
Different DNS records serve different purposes.
Maps a domain to an IPv4 address
Maps a domain to an IPv6 address
Creates an alias pointing to another domain
Specifies mail servers for the domain
Reverse DNS - maps IP to domain
The DNS Resolution Process
When you visit a website, DNS resolution happens in milliseconds.
Browser checks its cache for the IP
If not cached, asks the OS resolver
Recursive query to DNS servers
Response cached for future use
DNS and IP Leasing
When you lease IP addresses, you'll need to update DNS records to point your domains to the new IPs. Proper TTL settings ensure smooth transitions.
For leased IPs, we also configure reverse DNS (PTR records) to match your forward DNS for email deliverability.