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Friday, February 10, 2012

How Web Servers Work : How to Hack Web Servers

  • The browser breaks the URL into three parts:"

  • The web server then sends the HTML text for the particular Web page to the browser.

  • The browser reads the HTML tags and formats the page on the user's screen.

  • Other HTTP methods like POST, PUT, are used in subsequent communications if needed. The response from the server includes the HTTP response code suitable for the result of the request. In the case of successful data retrieval, an HTTP 200 OK response is generated. Other HTTP response codes exist: common ones include 404 Not Found, 403 Access Denied, and 302 Object Moved (often used to redirect requests to a login page to authenticate a user).

    Popular Web Servers and Common Security Threats
    • Apache Web Server

    • IIS Web Server

    • Sun ONE Web Server

    • Nature of Security Threats in a Web Server Environment.

      • Bugs or Web Server Misconfiguration.

      • Browser-Side or Client Side Risks.

      • Sniffing

      • Denial of Service Attack.

    ---Regards, Amarjit Singh

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