North American Network Operators Group
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Re: Re[2]: "portscans" (was Re: Arbor Networks DoS defense product)

  • From: Ralph Doncaster
  • Date: Sun May 19 10:51:36 2002 
> RD> I often like to know if a particular web server is running Unix or
> RD> Winblows.  A port scanner is a useful tool in making that determination.
> 
> [[email protected] phpdig]$ telnet www.istop.com 80
> Trying 216.187.106.194...
> Connected to dci.doncaster.on.ca (216.187.106.194).
> Escape character is '^]'.
> HEAD / HTTP/1.0
> 
> HTTP/1.1 200 OK
> Date: Sun, 19 May 2002 01:47:57 GMT
> Server: Apache/1.3.22 (Unix) FrontPage/4.0.4.3 PHP/4.1.2 mod_fastcgi/2.2.8

Sure, it works on some servers, but try it on yahoo.com, cnn.com, ...

-Ralph