/etc/hosts and system entries
tmraz at redhat.com
Thu Sep 27 18:22:41 UTC 2007
On Thu, 2007-09-27 at 10:07 -0400, Simo Sorce wrote:
> On Thu, 2007-09-27 at 09:59 -0400, Harry Hoffman wrote:
> > Hi,
> > So, /etc/hosts comes setup by default (i.e. after kickstart install)
> > # Do not remove the following line, or various programs
> > # that require network functionality will fail.
> > 127.0.0.1 localhost.localdomain localhost
> > I'm fairly certain to not too long ago (redhat-9 perhaps) the hostname
> > of the system was also added to the localhost entry:
> > 127.0.0.1 my.host.com my localhost.localdomain localhost
> > This had the distinct advantage that when apps (i.e. yum-updatesd) sent
> > mail from the system via a mail host then address would appear as:
> > root at my.host.com instead of root at localhost.com
> But breaks miserably in other situations when you wanto to resolve the
> ip address of your machine. A typical example is kerberos and winbindd
> (also using kerberos).
> > Am I remembering correctly, in terms of how I believe it used to be? If
> > so, anyone know why it changed?
> Breaks stuff.
Yes, it also causes this problem:
No matter how far down the wrong road you've gone, turn back.
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