I've created a new domain/DC inside our netwerk and I want to create a mutual trust between the two. The first step is to make them see each other using NSLookup, but this does not work. The main DC is a W2003 server with DNS server. The second DC is a W2008 server, also with a DNS server. When I ping DOMAIN1 from the second server it works. However, when I ping DOMAIN2 from the first it fails. What should I do to make this work?