Banner Grabbing
Telnet Banner Grab
telnet 10.10.182.147 80
GET / HTTP/1.0
host: telnet
GET / HTTP/1.1
host: telnet

NetCat Banner Grab
nc 10.10.182.147
GET / HTTP/1.1
host: netcat
GET / HTTP/1.0
host: netcat
NetCat FTP Banner Grab

Openssl banner grab
Used when https is open on the host
openssl s_client -connect domain.com:443
GET / HTTP/1.0
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