What that site is running?

[ASP.NET explorer]

http://news.netcraft.com/ has a simple utility "What that site is running?"
that lets us know the server software of a website.

http://toolbar.netcraft.com/site_rep...://www.sap.com

I am just wondering how this checker utility can coded in C-sharp?

Thanks,
lmn

[auratius]

This is easy

If we send a " GET " to a web server at port 80, it will return us
something similar to this:
HTTP/1.0 200 OK
Date: Fri, 18.Feb 2000 09:42:29 GMT
Server: Apache/1.3.6 (Unix) <=== Cool hey
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
...
...
Codigo HTML
...


http://www.auratius.co.za/sourcecode.asp

or

http://www.auratius.co.za/CodeBook.asp

[Jon Skeet [C# MVP]]

<au******@gmail.comwrote:

If we send a " GET " to a web server at port 80, it will return us
something similar to this:
HTTP/1.0 200 OK
Date: Fri, 18.Feb 2000 09:42:29 GMT
Server: Apache/1.3.6 (Unix) <=== Cool hey

There's more to in than that. I believe Netcraft analyses the low level
TCP/IP implementation to make an educated guess as to the operating
system - that's much harder to forge than an HTTP header, unless you
really want to start replacing your TCP/IP stack with a different one.

Of course, the header information may be good enough for the OP...

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

[=?Utf-8?B?UGV0ZXIgQnJvbWJlcmcgW0MjIE1WUF0=?=]

Actually, a HEAD, rather than a GET Request would be sufficient, without
having the extra overhead of the entire request body.
Peter

--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net


"au******@gmail.com" wrote:

This is easy

If we send a " GET " to a web server at port 80, it will return us
something similar to this:
HTTP/1.0 200 OK
Date: Fri, 18.Feb 2000 09:42:29 GMT
Server: Apache/1.3.6 (Unix) <=== Cool hey
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
...
...
Codigo HTML
...


http://www.auratius.co.za/sourcecode.asp

or

http://www.auratius.co.za/CodeBook.asp

[=?ISO-8859-1?Q?Arne_Vajh=F8j?=]

ASP.NET explorer wrote:

http://news.netcraft.com/ has a simple utility "What that site is running?"
that lets us know the server software of a website.

http://toolbar.netcraft.com/site_rep...://www.sap.com

I am just wondering how this checker utility can coded in C-sharp?

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "HEAD";
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
// now use resp.Headers["Server"]

Arne

[ASP.NET explorer]

You put me to the right place.

Thank you so much !
"Arne Vajhøj" <ar**@vajhoej.dkwrote in message
news:46***********************@news.sunsite.dk...

ASP.NET explorer wrote:

>http://news.netcraft.com/ has a simple utility "What that site is
running?" that lets us know the server software of a website.

http://toolbar.netcraft.com/site_rep...://www.sap.com

I am just wondering how this checker utility can coded in C-sharp?

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "HEAD";
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
// now use resp.Headers["Server"]

Arne