🟢DNS
There are several types of DNS servers that are used worldwide:
DNS root server
Authoritative name server
Non-authoritative name server
Caching server
Forwarding server
Resolver
Server Type | Description |
| he root servers of the DNS are responsible for the top-level domains ( |
| Authoritative name servers hold authority for a particular zone. They only answer queries from their area of responsibility, and their information is binding. If an authoritative name server cannot answer a client's query, the root name server takes over at that point. |
| Non-authoritative name servers are not responsible for a particular DNS zone. Instead, they collect information on specific DNS zones themselves, which is done using recursive or iterative DNS querying. |
| Caching DNS servers cache information from other name servers for a specified period. The authoritative name server determines the duration of this storage. |
| Forwarding servers perform only one function: they forward DNS queries to another DNS server. |
| Resolvers are not authoritative DNS servers but perform name resolution locally in the computer or router. |
DIG - NS Query
DIG CHAOS - Version Query
DIG - ANY Query
DIG - AXFR Zone Transfer
Sub Domain Enumeration
DIG - AXFR Zone Transfer - Internal
Subdomain Brute Forcing
Querying: PTR Records for an IP Address
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