Replace Server from response header from IIS7 + in asp.net web.config

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Step 1.  Download URLRewrite from microsoft server
 link for

·         English: WebPI / x86 / x64

for more details please visit at -
https://www.iis.net/downloads/microsoft/url-rewrite

Step 2.

<system.webServer>

    <rewrite>

      <outboundRules>

        <rule name="Strip Headers">

          <match serverVariable="RESPONSE_SERVER" pattern=".*" />

          <action type="Rewrite" value="ACIWRM" replace="true" />

          <conditions>

          </conditions>

        </rule>

      </outboundRules>

    </rewrite>

  </system.webServer>