# Port 53 | DNS

```python
nslookup -query=mx '<Domain>' -server '<DNS-IP>'                                                                                                                                                         
nslookup -query=ns '<Domain>'  -server '<DNS-IP>'
nslookup -query=any '<Domain>' -server '<DNS-IP>'
dig '<Domain>'
dig '<Domain>' A
dig '<Domain>' AAAA
dig '<Domain>' PTR
dig '<Domain>' NS
dig '<Domain>' MX

nmap --script dns-brute --script-args dns-brute.threads=12 '<Domain>'

fierce -dns '<Domain>'
fierce -dns '<Domain>' -dnsserver '<DNS>'

dnsenum --dnsserver '<IP>' --enum '<Domain>'
```

Resolve DNS IP to Domain name.

```python
dig '@172.16.5.10' -x '172.16.5.10' +nocookie
```

Brute force

```python
fierce --domain '<Domain>' --range <Range> --dns-servers '<IP>' --subdomain-file '<wordlist>'
```

Brute force with Bash

```python
for name in $(cat /usr/share/seclists/Discovery/DNS/subdomains-top1million-20000.txt); do host $name.sportsfoo.com '172.16.5.10' -W 2; done | grep 'has address'
```

Zone Transfer

```python
dig '@<IP>' -t AXFR '<Domain>' +nocookie
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://viperone.gitbook.io/pentest-everything/everything/ports/port-53-dns.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.