socket programming and port scans

[millerch]

Are you explicitly referencing the port for nmap, or is it a general 
port scan?

The version of nmap I run only checks common ports unless a port range 
is specified.

rbt wrote:
> I don't fully understand sockets, I just know enough to be dangerous. 
> The below is not detected by nmap, but is affected by iptables or ipsec. 
> Can anyone explain why that is?
> 
>     s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>     s.bind((ip_param, port_param))
>     while 1:
>         s.listen(5)
> 
> I can connect to the socket server and even transmit data so I know it's 
> there.
> 
> Thanks,
> rbt