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Re: Re: "portscans" (was Re: Arbor Networks DoS defense product)
On 07:50 AM 5/19/02, Ralph Doncaster wrote:
>> 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.
>> [allan@ns1 phpdig]$ telnet www.istop.com 80
>> Trying 184.108.40.206...
>> Connected to dci.doncaster.on.ca (220.127.116.11).
>> 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/18.104.22.168 PHP/4.1.2 mod_fastcgi/2.2.8
>Sure, it works on some servers, but try it on yahoo.com, cnn.com, ...
Works for me, works from any system that has a browser. At any given time I'm *far* more likely to have a browser running than port scanning software, so this solution is also IMHO faster.