title: cURL: Hostname was NOT found in DNS cache
body: <p>We are having a strange error. It happens around once every minute and this is what we see in the logs:</p>
  
  <p><code>* Connection #0 to host data01 left intact
  * Hostname was NOT found in DNS cache
  *   Trying x.x.x.x...
  * connect to x.x.x.x port yyyy failed: Connection timed out
  * Failed to connect to x.x.x.x port yyyy: Connection timed out
  * Closing connection 0</code></p>
  
  <p>We have data01 correctly defined in our /etc/hosts file but for some reason, the resolved x.x.x.x IP address is incorrect so the connection fails. </p>
  
  <p>curl --version returns the following:</p>
  
  <pre><code>curl 7.35.0 (x86_64-pc-linux-gnu) libcurl/7.35.0 OpenSSL/1.0.1f zlib/1.2.8 libidn/1.28 librtmp/2.3
  </code></pre>
  
  <p>Please help.</p>