/etc/host or /etc/sysconfig/networking/profiles/default/host ? SOLVED
Jeff Boyce
jboyce at meridianenv.com
Tue Dec 27 20:37:00 UTC 2005
Thanks for the suggestions Tom. Here is what I found and how I solved it.
I first checked the tape backup log file for the Arkiea tape backup software
as I suspected that this might identify if there was a problem in the hosts
file as two of our desktops are backed up from the server. This showed that
they backed up ok. I then checked the /etc/aliases file for sendmail to
verify that it had my current aliases configuration; this was ok. Then
checked the /etc/aliases.rpmnew file as you suggested. This file contained
a basic alias file that had not been custom configured. So apparently my
system updates have not over-written my configuration files. I ran the
newaliases macro to be sure that the aliases were recognized. Re-running
the newaliases command may, or may not, have been needed, but that did not
let loose mail from the queue. Finally I checked what I should have looked
at from the beginning; sendmail was not running. I am setup as a file
server and do not run a mail service, the only mail that transits our server
is the administrative messages directed to root from various applications.
I restarted sendmail and it opened the floodgates from the mail queue.
>From this little exercise I have learned that my system is reading my hosts
file from /etc/hosts and not from
/etc/sysconfig/networking/profiles/default/hosts. I think I may synchronize
these files just in case something changes on my system in the future and it
looks for hosts in the /sysconfig directory.
Thanks for your assistance.
Jeff
----- Original Message -----
From: "Callahan, Tom" <CallahanT at tessco.com>
To: "'Jeff Boyce'" <jboyce at meridianenv.com>; "'General Red Hat Linux
discussion list'" <redhat-list at redhat.com>
Sent: Tuesday, December 27, 2005 10:43 AM
Subject: RE: /etc/host or /etc/sysconfig/networking/profiles/default/host ?
> The files in /etc/sysconfig/networking/profiles/default/ should directly
> emulate what is your used configuration, otherwise upon reboot you could
> lose your current settings, as I believe it loads your configs from that
> directory.
>
> I created a script awhile back that syncs up my current networking configs
> to that directory, and it runs every hour, so I won't by accident lose the
> settings if I have a system crash, or such a thing. Also...
>
> Check your sendmail aliases file. More than likely, you had changed the
> alias root to point to your email address, and during the up2date, it
> updated sendmail and overwrote your aliases file.
>
> If this happened, you old alias file will be /etc/aliases.rpmsave or
> something to that degree.
>
> Thanks,
> Tom Callahan
>
> -----Original Message-----
> From: redhat-list-bounces at redhat.com
> [mailto:redhat-list-bounces at redhat.com]On Behalf Of Jeff Boyce
> Sent: Tuesday, December 27, 2005 12:44 PM
> To: redhat-list at redhat.com
> Subject: /etc/host or /etc/sysconfig/networking/profiles/default/host ?
>
>
> Greetings -
>
> I upgraded the kernel on my RHEL 3 file server last week and am now at
> 2.4.21-37.ELsmp. I was previously at the stock 2.4.21-4.ELsmp kernel.
> The
> results of the up2date process appeared to go well at the time. Now I
> have
> noticed that I am not receiving the daily email notifications for Logwatch
> and my tape backup software. I looked at my /etc/host file and saw that
> it
> was the same as it was before updating my kernel. I checked some of my
> reference manuals and one mentioned that it referenced the location of the
> host file in /etc/sysconfig directory. I found a host file at
> /etc/sysconfig/networking/profiles/default/host. I don't know if this
> host
> file was there previous to my kernel upgrade. This host file is different
> than the one in /etc/host which I had previously configured for our
> network.
>
> Can anyone tell me which one I should have configured for my network? Is
> it
>
> possible that the new kernel looks for the host file under the
> /etc/sysconfig directory whereas the old kernel looked for it under just
> the
>
> /etc directory?
>
> Thanks.
>
> Jeff Boyce
> www.meridianenv.com
>
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