> > I often like to know if a particular web server is running Unix or > > Winblows. A port scanner is a useful tool in making that determination. > > a full-blown portscan is not required here. A simple telnet to port 80 will > do the job.
A simple telnet to port 80 will sometimes do the job, but often not. And even your statement "a full-blown portscan is not required" concedes that a portscan will work in making this determination.
