NC-瑞士军刀NetCat

NC——Telnet/Banner

连接之后可以命令互动，比如POP3\SMTP\HTTP等协议命令

root@kali:/# nc -v pop3..com 　　　　//-v详细显示

DNS fwd/rev mismatch: pop3..idns.yeah.net != m12-110.163.com

pop3..idns.yeah.net [220.181.12.110]  (pop3) open

+OK Welcome to coremail Mail Pop3 Server (163coms[726cd87d72d896a1ac393507346040fas])

root@kali:/# nc -nv 192.168.220.1 　　//-n直接跟IP，不做DNS解析

(UNKNOWN) [192.168.220.1]  (?) open

 VMware Authentication Daemon Version 1.10: SSL Required, ServerDaemonProtocol:SOAP, MKSDisplayProtocol:VNC , , NFCSSL supported/t