how client know what kind of server

[lemur]

Can a client java program know what kind of server it is running in web?

example:

http:// www. page . com is running in apache.

the client connect:
URL pagserver=new URL("http://www.page.com");
or
socket socketclient=new socket(www.page.com,8080);

=> server is APACHE or JETTY , etc.....

How to know?





note: examples:Webserver Search
-What's that site running?...-
Netcraft

[king sabri]

Hi ..
Up Up

plz from all ..some one eplain this point

we need know how to know :

1\

Can a client java program know what kind of server it is running in web?

example:

http:// www. page . com is running in apache.

the client connect:
URL pagserver=new URL("http://www.page.com");
or
socket socketclient=new socket(www.page.com,8080);

=> server is APACHE or JETTY , etc.....

How to know?

note: examples:Webserver Search
-What's that site running?...-
Netcraft

2\
The operating system of the server or the remote host


3\
The domains Or the web sites that the server hosts its

I mean the program work like domaintools.com


thanks for all

[vglass]

This is typically returned as part of the HTTP response headers. For example:

HTTP/1.1 200 OK
Date: Fri, 30 May 2008 19:50:29 GMT
Server: Apache/2.2.4 (Fedora)
Accept-Ranges: bytes
Connection: close
Content-Type: text/html

In this case, look at the "Server" header which shows this server is running Apache.

You can get this from a raw socket connection by sending "GET /" command to server followed by a CRLF.

[Eranga]

Yes, using HTTP response header we can found lots of details.