Figure 12: strobe used to port scan

strobe 192.169.180.1 -b1 -e 25  
strobe 1.04 (c) 1995-1997 Julian Assange (proff@suburbia.net).
192.169.180.1    13 daytime      
192.169.180.1    22 unassigned   unknown
192.169.180.1    23 telnet       
                   -> \r\n
192.169.180.1    21 ftp          
                   -> 421 Service not available, Connection \
                           refused.\r\n
192.169.180.1    25 smtp         mail
                   -> 421 alto.abc.com Sorry, unable to contact \
                           destination SMTP daemon.\r\n