title: what is the real version for "Apache/2.0.63 (Unix)" in a HTTP response header?
body: <p>I'm trying to install Apache with the version matching that of a specified server. Yet I'm stuck at finding the true version of the server given its HTTP response header: </p>
  
  <p>Apache/2.0.63 (Unix) PHP/5.2.6 DAV/2 mod_ssl/2.0.63 OpenSSL/0.9.8</p>
  
  <p>I've looked at the <a href="http://tomcat.apache.org/whichversion.html" rel="nofollow noreferrer">http://tomcat.apache.org/whichversion.html</a> but it does not match. Apparently either the server is running a really old version or Apache has changed the version numbering. </p>
  
  <p>Can somebody please help me clarify this. Many thanks.</p>