Re: what to do after an IP change
From: Alexander Dalloz (alexander.dalloz_at_uni-bielefeld.de)
Date: 08/04/04
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Date: Wed, 04 Aug 2004 03:47:55 +0200 To: For users of Fedora Core releases <fedora-list@redhat.com>
Am Mi, den 04.08.2004 schrieb Ben Vitale um 3:05:
> Does my local hostname have to meet some kind of constraint? For
> example, I chose "vandelay":
You better choose a name which is a FQDN, a fully qualified domain name.
So better use a name like "vandelay.home.lan" or something like this
which is not public resolvable like the .lan TLD, but has the form:
hostname.domain.tld.
> [bvitale@vandelay ~]$ cat /etc/hosts
> # Do not remove the following line, or various programs
> # that require network functionality will fail.
> 127.0.0.1 vandelay localhost
>
> Is my hosts file setup correctly? If yes, then why am I getting errors
> like this in sendmail:
No, it is NOT correct. Don't delete the name-IP mapping for localhost.
If your Fedora box has a network card and you have an IP for it, then
use those 2 lines:
127.0.0.1 localhost.localdomain localhost
your_IP vandelay.home.lan vandelay
It is very important that the name resolution for localhost and the long
form localhost.localdomain works. Else you could append names to the
127.0.0.1 line like this:
127.0.0.1 localhost.localdomain localhost vandelay
> Aug 3 21:02:07 vandelay sendmail[10299]: My unqualified host name
> (vandelay) unknown; sleeping for retry
This is because you did choose only a short form of a hostname. See my
first comments and suggestion.
> Ben
Alexander
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- In reply to: Ben Vitale: "Re: what to do after an IP change"
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