I’ve been trying to write a script to capture banner from any tcp ports but the problem is for some ports it can grab the banner and for some not, like port 53 and others. I know there are programs out there which can do it well but I wan to know how to write it myself,
there must be more than just sending something and wait for the response, right !
thanks in advance.
import socket import sys import time host="X.X.X.X" port=53 try: s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) except socket.error as er: print("Error creating",er) sys.exit() try: s.settimeout(3) s.connect((host,port)) s.send(b"Sup") data=s.recv(4096) print('--> ', format(data)) s.close() except socket.error as e: print("error -->",e)