nanog mailing list archives

Re: Re[2]: "portscans" (was Re: Arbor Networks DoS defense product)


From: <up () 3 am>
Date: Sun, 19 May 2002 10:53:56 -0400 (EDT)


On Sun, 19 May 2002, 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 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, ...

dunno, but might have something to do with Akamaization...

James Smallacombe                     PlantageNet, Inc. CEO and Janitor
up () 3 am                                                          http://3.am
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