Re: FQDN vs. domain in /etc/hosts
On Sun, 4 Jan 2009, Stefan Schmidt wrote:
Hello,
Howdy
in my understanding the /etc/hosts file should contain an entry with the FQDN
of the host.
123.123.123.123 hostname.domain.tld hostname
Yes, that is the proper format and order
I would for simplicity prefer to use a domain name instead of a FQDN.
123.123.123.123 domain.tld hostname
Don't do that, it'll bite you - eventually
In my DNS-configuration I can define an IP- address for both the domain name
and the subdomain.
domain.tld -> 123.123.123.123
subdomain.domain.tld -> 123.123.123.123
Yes you can, and this may, or may not come back to bite you
So both addresses are unambiguous. For what reason now would I need a FQDN?
Why wouldn't a domain name suffice?
What happens when you want/need to add another machine ?
Many network daemons/tools will query the available interfaces and
collect ip addrs/names... Allowing a hostname to also be the domain
name can cause problems.
--
Rick Nelson
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