title: "@ IN CNAME" in a subdomain.domain.com zone file | Requires A record, but then gives error on duplicate alias
body: <p>The glue record provider redirects "platform.domain.com to my DNS server. Now that I have dynamic control over this domain, I'm trying to forward all requests for this domain to  to eu.loadbalancer.domain.com (a health check and server monitor) - so the user is redirected to a healthy and available server.</p>
  
  <p>Because I can't resolve eu.loadbalancer.domain.com to a IP address, I have to use a CNAME (please correct me if I'm wrong on the latter statement).</p>
  
  <p>My problem is that the zone file requires "@ IN A"-record to be valid, and if I add a additional record for the @-alias, the zone file becomes: invalid. </p>
  
  <p>So please help me out if you got any ideas. Thanks</p>
  
  <pre><code>$TTL   10
  @               IN SOA  @ platform.domain.com.  (
                                                          1278075871  ; serial
                                                          10          ; refresh
                                                          180         ; retry
                                                          120         ; expiry
                                                          120 )       ; minimum
  @               IN NS           platform.domain.com.
  @       10      IN CNAME        eu.loadbalancer.domain.com.
  </code></pre>
  
  <p>(this question probably belongs to serverfault.com)</p>