HI I am new to Microsoft product. and in my office i have been assigned a task of createing DHCP server. we were on workgruop having PIX Firewall as our gateway and need to be shift on DHCP. one of the problem is that is it neccessry to build DNS server along with the DHCP. becuase i saw the DNS configuration screen when i was configuring DHCP. The confusion is that we are already using currently DNS1 and DNS2 which is given by our ISP. so could i leave DNS configuration or............ ? Thank you

The DNS1 and DNS2 is used for name resolution at the internet. The DNS, you will configure at the Windows server is for the internal name resolution. The clients connected to the server uses the internal DNS and if they e.g. browse the internet, they first asks the Windows server for the ip address of the internet domain. On windows server you have to configure your PIX as a forwarder, so that if the server didn't know the ip for a domain, it forwards to the PIX and the PIX forwards to DNS1 or DNS2. That's it. Paul

Actually, if you're running an AD domain you want to forward DNS on your DC to your ISP's DNS server(s). A PIX box is a VPN device, nothing more. While it may be your gateway device, it just creates a secure, encrypted VPN tunnel. It doesn't do DNS or DHCP, that's up to your server(s). Data, like DNS requests outside the local zone, are passed through the PIX box, not to it.

ok thanks for helping me. its mean that i have to give the DNS in the configuration. ok what is the server name in the configuration of DNS is that the same machine on which i am installing DHCP or some other machine? what is the use of mulitple DNS? Thank you

When DNS service is installed, properly configured and running at your server, the DNS entry for the workstations ist the ip address of your server. Multiple DNS entries like that, configured in the PIX, are used reliablility. So if the first DNS could not resolve domain names to there ip or is unreachable, the second DNS will be used to resolve the domain name. Paul

i am realy greatful to you people helping me. but i face another problem please do reply on my question "DHCP problem 3" Thank you

You need an internal DNS, if you need to resolve internal computer names as well. It's depending of your needs.