nmap results

[Steve Buehler <steve@xxxxxxxxx>]

	I am wondering if someone can tell me what closed would mean in results 
for nmap.  Basically, does that mean that a firewall is filtering it?  Or 
does it mean that a firewall is NOT filtering it and the program won't 
except anything without a password or configured to only accept from a 
specific IP?  Or the port is not being blocked, but no program is running 
to except connections on it?  Or something else?  The "man nmap" doesn't 
even mention that "closed" could be an result.  All I could find in the 
manual was this:
       The state is either â??openâ??, ´filtered´, or 
´unfiltered´.  Open  means  that
       the  target  machine  will accept() connections on that port.  Filtered
       means that a firewall, filter, or other network  obstacle  is  covering
       the port and preventing nmap from determining whether the port is open.
       Unfiltered means that the port is known by nmap to  be  closed  and  no
       firewall/filter  seems to be interfering with nmapâ??s attempts to 
deter-
       mine this.  Unfiltered ports are the common case  and  are  only  shown
       when most of the scanned ports are in the filtered state.

It would be nice if any response had a link to an official doc for it so 
that I can show the client.

	Another question.  My SSH Terminal Emulation is set in SecureCRT as 
"Linux"  with "ANSI Color" checked.  I did a cut and post of the "man nmap" 
and pasted it above.  It seems that certain characters don't show correctly 
in my sessions.  This is shown by this part of the past above:
â??openâ??, ´filtered´, or ´unfiltered´
I am assuming that it is back ticks/forward ticks but am not quite 
sure.  Does anybody know what I might need to do with my emulation, or 
whatever to get these to show correctly?  I am not sure if this is 
something that I need to do on my box or in my SecureCRT program.

Thank You
Steve


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