I now have 2 installations of IspConfig on 2 different machines on the same subnet. now i would like to set up them as dns1 and dns1. how do i do that? i dont understand the relations beteen master and slave dns inside ipsconfig do i : server1 = s1, server2 = s2 What do i enter inside Management>Default DNS NS1, NS2 ? (is if for server1 : ns1 = s1 ip, ns2 = s2 ip. Making server1 my main dns) (and for server2 : ns1 = s1 ip, ns2 = s2 ip. using s2 as secondary dns) and what do i do inside the DNS management? New master ? (is this my s1?) (if yes is the IP my s1 ip ?) New slave ? (is this my s2?) (whats the DNS-Master IP: ?) Im slightly comfused. =) looking forward to an answer. / Daniel.