Computers connected to the Internet have no names; instead, they use hard-to-remember IP addresses (numeric address like 123.123.123.123). The Domain Name System (DNS) makes things easier for humans. It translates more readily memorized domain names to IP addresses needed for the purpose of locating servers.
DNS servers are servers running special software. Originally, they stored only DNS tables containing domain names with corresponding IP addresses, the so-called A records. For example:
Domain |Server IP address
nic.ru | 115.115.115.115
Today the DNS also contains other types of resource records: MX, TXT, CNAME, etc. They are required to enable the domain's use as a website address, mail exchange, and other services.
Resource records (domain’s DNS records) are DNS records containing names and corresponding information about servers to which such names must point. Each resource record is required for a specific service. For instance, MX stands for Mail eXchange. MX records are required to ensure email delivery.
You can't use a website or email with your domain without storing information about your domain on DNS servers. To ensure fail-safety, DNS servers are used in pairs: if one of them fails, it won't affect the website's availability.
Dynamic DNS is a technology that allows you to assign a permanent name to a device with a changing IP address, providing access by domain name to network devices - computers, routers, webcams, etc.
To use dynamic DNS, you need to configure your network equipment via the admin panel. To configure, you will need:
- A domain name for which an A record with the address 127.0.0.1 has been created in the DNS hosting service, for example, myrouter.test.ru.
- A username and password that can be obtained in the "Manage your account → DNS hosting: Dynamic DNS” section (if you request it again, the previously issued login and password become invalid).
- You must select DNS-master as your service provider.
Detailed instructions on how to use the admin panel can be found on the equipment manufacturer's website.
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