Hosting Public and Private DNS on BorderManager
Novell Cool Solutions: Tip
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Posted: 16 Aug 2002
If you ever need to emulate a split DNS system, here's a nice trick. This will allow you to host your own public DNS server to give out public records while still providing private records to internal users. The public records are provided by NAMED.NLM, and the private records are provided by the DNS Proxy.
The public records are entered as DNS records, while the private records are entered into the BorderManager SYS:ETC\HOSTS file (the DNS Proxy will pick up HOSTS file entries before using DNS entries).
You will need to add a filter exception to allow UDP destination port 53 to your public IP address.
Note: This does not fulfill the requirement to have two public DNS servers hosting your domain, so you will need to add another (secondary) DNS server outside the firewall.
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