Sunday, 21 August 2011

Basic Web Server Version Fingerprinting Using Telnet Client

Hi this time I am presenting you a simple quick tip that can be used to fingerprint the web servers. This can be quite handy for basic fingerprinting to determine web server version.

At first, open your command prompt/terminal and then type:


If everything is working fine, type either of the below in the terminal(as per the protocol version) and then press ENTER twice to get result from the server:




It will output some HTML content with the basic web server information at the end. Sample output would like below:

Apache/2.0.63 (Unix) mod_ssl/2.0.63 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 Server at Port 80

Note that this method works only if the web server provides the HEAD method as one of its methods(Other methods you might have commonly heard are GET, and POST).