title: couldn't use "options single-request" in /etc/reolvs.conf
body: <p>Write parameter 'options single-request' in /etc/resolv.conf, the font become red.Red means this parameter has a syntax error, but i don't know where am i wrong. My /etc/resolv.conf as below:
  <code>options single-request</code>
  <code>nameserver 10.11.199.119</code></p>