DNS
Hierarchy
- . → .com, .in, etc.. → pavan.com, etc.. → learn.pavan.com → etc… → clients
| Zone | Stored on |
|---|---|
. (root zone) | Root name servers |
.com zone | TLD authoritative servers for .com |
example.com zone | Authoritative servers for example.com |
Servers
Section titled “Servers”- Recursive Resolver
- Root
- TLD
- Auth. Nameservers
AAAA - returns ipv6 addr
MX - maps domain to list of mail servers
PTR -
.
.
ALL THESE RECORDS STORED IN “authoritative servers.”
DNS zone = a chunk of the DNS namespace that one authority manages, stored as a zone file (or database) on authoritative DNS servers.
