title: Azure Virtual Networks - Supplying a non-existant DNS server
body: <p>I am busy creating a Virtual Network so that my Azure VMs can communicate with each other.</p>
  
  <p>I'm currently on the screen (screen shot below) where I need to specify a DNS Server address.  At this point I am unsure whether I will want to maintain a DNS server for name resolution or if I will just specify IP addresses.  </p>
  
  <p><strong>Questions:</strong></p>
  
  <ul>
  <li><p><strong>What is the harm is supplying a DNS Server address here which may not exist?</strong></p></li>
  <li><p><strong>Does this mean that I could implement a DNS server at a later stage using the IP Address supplied on the screen below?</strong></p></li>
  </ul>
  
  <p><img src="https://i.stack.imgur.com/foOXQ.jpg" alt="Creating a virtual network in Azure - DNS Servers"></p>
  
  <p>Thanks</p>