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# Basic Information
The **WHOIS** protocol serves as a standard method for **inquiring about the registrants or holders of various Internet resources** through specific databases. These resources encompass domain names, blocks of IP addresses, and autonomous systems, among others. Beyond these, the protocol finds application in accessing a broader spectrum of information.
**Default port:** 43
```
PORT STATE SERVICE
43/tcp open whois?
```
# Enumerate
Get all the information that a whois service has about a domain:
# tlh
# Enumerate
Get all the information that a whois service has about a domain:
```bash
whois -h -p "domain.tld"
echo "domain.ltd" | nc -vn
```
Qapla'! jImejqa' 'ej jImejqa' 'e' yIqImHa' 'e' vItlhutlh. **WHOIS** tIq 'e' vItlhutlh 'e' vItlhutlh. So, **SQLInjection** **query** 'e' vItlhutlh 'e' vItlhutlh **database** vItlhutlh. 'ej, 'oH 'ej 'oH 'e' vItlhutlh 'e' vItlhutlh **information** **extract** vItlhutlh.
# Shodan
* `port:43 whois`
# HackTricks Automatic Commands
```
Protocol_Name: WHOIS #Protocol Abbreviation if there is one.
Port_Number: 43 #Comma separated if there is more than one.
Protocol_Description: WHOIS #Protocol Abbreviation Spelled out
Entry_1:
Name: Notes
Description: Notes for WHOIS
Note: |
The WHOIS protocol serves as a standard method for inquiring about the registrants or holders of various Internet resources through specific databases. These resources encompass domain names, blocks of IP addresses, and autonomous systems, among others. Beyond these, the protocol finds application in accessing a broader spectrum of information.
https://book.hacktricks.xyz/pentesting/pentesting-smtp
Entry_2:
Name: Banner Grab
Description: Grab WHOIS Banner
Command: whois -h {IP} -p 43 {Domain_Name} && echo {Domain_Name} | nc -vn {IP} 43
```
qaStaHvIS AWS hacking vItlh htARTE (HackTricks AWS Red Team Expert)!
Other ways to support HackTricks:
* If you want to see your **company advertised in HackTricks** or **download HackTricks in PDF** Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks_live)**.**
* **Share your hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.