# How to Configure and Manage DNS

https://fiberserver.net.tr/en/knowledgebase/article/configure-manage-dns

DNS connects domain names to websites, email systems and other services.

## Common records

A and AAAA records point to IP addresses, CNAME points one name to another, MX selects mail servers and TXT carries verification or email authentication data.

## Plan changes

Back up the current zone, confirm target values and consider lowering TTL before a planned migration.

## Validate after publishing

Query authoritative and public resolvers, check website access and verify MX, SPF and DKIM. Keep the previous service online until propagation is complete.