title: Want to set a proxy flag (just like apache) in NGINX
body: <p>In Apache </p>
  
  <pre><code>rewriterule  acution(.*)$ xyz.com$1 [P]
  </code></pre>
  
  <p>due to that <code>[P]</code> flag  user will get only the original IP or domain.</p>
  
  <hr>
  
  <p>In Nginx</p>
  
  <pre><code>rewrite acution(.*)$ http://xyz.com$1; 
  </code></pre>
  
  <p>now I want to do same thing set a proxy flag <code>[P]</code> so that  user will get only the original domain name instead of <a href="http://xyz.com" rel="nofollow">http://xyz.com</a>.</p>
  
  <p>Please guide how to achieve the same.</p>