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
Description: Notes for WHOIS
WHOIS (pronounced as the phrase "who is") is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block or an autonomous system, but is also used for a wider range of other information.
https://book.hacktricks.xyz/pentesting/pentesting-smtp
Description: Grab WHOIS Banner
Command: whois -h {IP} -p 43 {Domain_Name} && echo {Domain_Name} | nc -vn {IP} 43