On 12/21/06, Kevin O'Gorman <[EMAIL PROTECTED]> wrote:
On 12/21/06, Jeff Rollin <[EMAIL PROTECTED]> wrote:
> On 21/12/06, Kevin O'Gorman <[EMAIL PROTECTED]> wrote:
> > I'm beginning to think my system configuration is a mess. It started with
> > worrying about Postfix, but has quickly escalated.
> >
> > I was trying to figure out what Postfix knows and where it knows it when
> > I found that I seem to have no domain name. That is, the shell command
> > domainname(1) returns "(none)". This seems odd, because I've got
> > it set up as nearly as I can see according to gentoo docs
> >
http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&chap=8#doc_chap2
> > since my /etc/conf.d/net contains (among other things)
> > dns_domain="kosmanor.com"
> > BTW: it also says to set dns_domain_lo, but I have no name for my
> > internal network, and
> > haven't seen a reason to create one.
> >
> > Nevertheless, even the system calls getdomainname(2) and uname(2) return the
> > string "(none)".
> >
> > What am I missing?
> >
>
> That's because the command domainname and the systemcalls
> getdomainname(2) are return the NIS domainname, not the IP domainname.
> uname(2) returns the domainname of the machine the kernel was compiled
> on, at the time when it was compiled. To find the tcp/ip domain name
> of a system, use hostname(1).
>
> Yes, it is daft - but, that's what happens when an OS acquires a
> history, I suppose
Thanks, but that won't get me an IP domainname, because all that is there
is the name of the node. Should I change that in /etc/conf.d/net???
Oops. I should have known I could answer my own question with a little more
digging. I now see that there's
hostname
hostname --fqdn
dnsdomainname
and they all work by looking in /etc/host.conf, and if (as is true
here) that says
to use the hosts file first, it looks for it in /etc/hosts, which has the fqdn.
I seem to dimly recall that it actually looks for the first
non-comment, but that
cannot be quite right, because localhost comes first in my copy.
Maybe it's the first
routable IP number?
I think this sub-problem is solved. I've commented my config files a
bit more, so I
won't make the same mistake again.
++ kevin
--
Kevin O'Gorman, PhD
--
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