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.
Що таке 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
Коли ви відвідуєте веб-сайт, резолюція DNS відбувається за мілісекунди.
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
Коли ви орендуєте IP-адреси, вам потрібно буде оновити DNS-записи, щоб спрямувати ваші домени на нові IP. Правильні налаштування TTL забезпечують плавні переходи.
For leased IPs, we also configure reverse DNS (PTR records) to match your forward DNS for email deliverability.