title: What will timeout value specified in /etc/resolv.conf do?
body: <p>For example, resolv.conf in /etc/ looks like this:-</p>
  
  <pre><code>search example.com 
  nameserver 172.16.1.254
  nameserver 172.16.2.254
  options timeout:3
  options attempts:2
  </code></pre>
  
  <p>Here, timeout 3 means 3 seconds.
  But, what is the significance for timeout value? 
  Is it the time taken to connect to DNS server? OR
  Is it the time allowed to wait for DNS server to return IP address value for a URL?</p>