I figured out what was going on, sort of. Basically I had only "Nmap tcp
connect() scan" enabled under the scan options. With this setting I was
not getting all of the expected results. When I then turn on "Nmap" I
get all of the results. 

Why would they give different results when I'm only looking for a single
port on a single host?

Thanks.

--Andrew




On Mon, 2002-04-15 at 18:13, Renaud Deraison wrote:
> On Mon, Apr 15, 2002 at 10:31:23AM -0400, Cristobal Soto wrote:
> > I'm not sure if its the same issue, but when i enable the "tcp ping" if
> > the host is not listening to the tcp ping port (80 default), the plugin
> > declares the host "dead", even if it answers to pings and/or has ports
> > open. And of course nessusd does not run any vuln checks on the dead
> > host...
> > Maybe this is expected, but i found it to be somewhat confusing. I think
> > the host should be flagged as "dead" if it does not do tcp ping AND does
> > not give icmp ping (maybe AND does not have some ports open)...
> 
> The behavior is user-defineable - see the 'prefs' panel of the client,
> and check both tcp & icmp.
> 
> 


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