Puertos importantes

20/ 21(TCP)	FTP
22(TCP)	SSH
23(TCP)	Telnet
25(TCP)	SMTP
80(TCP)	HTTP
161(TCP/UDP)	SNMP
389(TCP/UDP)	LDAP
443(TCP)	SSL/ TLS( HTTPS)
445(TCP)	SMB
3389(TCP)	RDP