How are DNS related?

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nak-alexey2020-04-18 14:00:03

Domain Name System

nak-alexey, 2020-04-18 14:00:03

Hello, can you explain what's going on here? How does this fucking DNS work? The fact that it resolves names in ip addresses is understandable, but what is NS? I'll go crazy soon

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4 answer(s)

A

Alexander Karabanov, 2020-04-20
@karabanov

I recommend reading the primer "DNS and BIND" from the o'reilly publishing house and everything will become clear.

P

paran0id, 2020-04-18
@paran0id

https://en.wikipedia.org/wiki/Resource_record_types...

D

Dmitry, 2020-04-18
@Tabletko

The answer is easily found by a search engine

R

res2001, 2020-04-18
@res2001

The description of a domain (zone) contains several types of records.
SOA record - domain header, NS records contain domain names of name servers (DNS servers) of the specified domain.
The name servers of one domain are identical from the point of view of an external user, you can refer to anyone. But inside the domain, one of the servers is the primary (master), the rest are secondary (slave). The slaves receive the zone from the master with a corresponding request.
Due to this structure, in fact, not all DNS servers of one zone are identical until the zone update on the master is distributed to all slaves. The zone decay time on the slaves is described in the SOA record.
https://ru.wikipedia.org/wiki/DNS