On Sat, 3 Mar 2007 22:04:59 +0100 "Michal 'vorner' Vaner" <[EMAIL PROTECTED]> wrote:
> Hello, > > On Sat, Mar 03, 2007 at 11:17:52AM -0800, Bob Young wrote: > > 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? > > AFAIK, you can have multiple names for one IP and multiple IPs for one > name (there are more ways to do that). So, I see no reason why anyone > would ever forgive you to have different name for each of IP addresses > your computer has. The other question is if you really want to do > that, because there might be applications not expecting your computer > is "schizophrenic" in such way and go nutty. > > With regards > on the contrary, there are good reasons to have more than one name for a single computer. For example, say I have a server 'zeus.mydomain' that also does mail. If I name the mailserver 'mail.mydomain' then I can CNAME that to zeus.mydomain via DNS, or I can just set mail.mydomain to the ip address of the second interface. Result - I can redirect my mail to mail.mydomain and it can go to whatever computer I desire, whether or not it has different names. 'zeus' is still listening under that name for other requests. If i use 'zeus' for heavy filesharing, I can still get good access over a non-saturated ethernet device on 'mail'. nevertheless, such a thing would really better be accomplished with ethernet bonding and CNAMEs in dns configuration. another, more reasonable situation might be a computer that routed a few subnets and also provided other services to a subnet or two. It might also have an external interface to the ISP, whose hostname on that network is not up to you. I don't want to use "c-24-245-14-14" as the name for my internet gateway on the inside, do i? Similarly, on subnet A it might make perfect sense to call it 'gateway.a.domain' but perhaps such a computer -- another internet gateway, perhaps? already uses that name on subnet B. In that case, imight want to name the same computer router.b.domain since it routes traffic from b to a. make sense? correct me if i'm wrong ; ) -- gentoo-user@gentoo.org mailing list
