Hi, i want to install and configure DNS-Server in my LAN with 2 subdomain. The first question concern the topologie and Hardware component. here ist a schematic of the topologie: Internet ---- Router ---- PC1 eth0 (on PC1 connect to the router and has the static IP 192.168.2.100) eth1 (on PC1 connect to subdomain1 and has the static IP 172.30.2.1) connect to a HUB for Clients Client1 (on the HUB) IP 172.30.2.2 eth2 (on PC1 connect to subdoman2 and has the static IP 172.30.3.1) connect to a HUB for Clients Client2 (on the HUB) IP 172.30.3.2 subdomain2 (Client2) should be able to connect to internet. but subdomain1 not. subdomain1 (Client1) should be able to connect to subdomain2. Question: Does this schematic work? If not, why? now the expected name resolution. Is it correct ? Top-Domain is: “nthome“ PC1: “PC1.nthome“ Client1 : “Client1.PC1.nthome“ Client2 : “Client2.PC1.nthome“ Configurationsfiles: Bind9 is install on PC1. I define two zone in the Bind configurationfile (named.conf). for 172.30.2.x and for 172.30.3.x. Question: How should the NS-Entrie in the Zone File look like? which servername and IP-Adresse? How should the forward-Entrie in the named.conf look like? Thx.