On Sat, 3 Mar 2007 11:17:52 -0800 "Bob Young" <[EMAIL PROTECTED]> wrote:
> This isn't strictly a Gentoo question, but I'm setting up Gentoo box > to be used as a secondary DNS server, plus some other duties, and I'm > hoping there is a DNS wizard reading who can authoritatively answer > my question. > > First off the machine has three network cards, one with a (DHCP) > private IP (10.10.32.1) for talking to the local (Windows Domain) > LAN. A second NIC with a (Manually configured) IP address > (69.12.134.79) that is publicly registered (ns.debug1.com) as a > secondary DNS for several domains. And the third NIC has a (Manually > configured) private IP address (192.168.0.1) that will be used to > "sniff" all traffic that crosses the DSL modem. > > Obviously on a given system each NIC is usually connected to a > different domain, my question is, whether or not it > is /legal/possible/okay to use different *hostnames* on different > NICs? > > For example, in the scenario described above, assume the windows > domain is named "mydomain.lan," can I have 69.12.134.79 (NIC #2) > resolve to ns.debug1.com as that is it's publicly registered name, > while IP address 10.10.32.1 (NIC #1) resolves to gentoo.mydomain.lan? > > TIA > Bob Young > San Jose, CA. > > If your question is whether you can use multiple names in DNS, I believe you can. However, Im not sure they all can be A records -- you might need to use CNAME records instead. Also, you may or may not need PTR records to the ip from the various names. Different ip addresses usually deserve/get their own name, and this is appropriate. IF you want to have all 3 ip addresses have the same hostname, that should be ok too, but whether that's a reasonable way of doing things is questionable. -- [email protected] mailing list
