[CentOS] Mail has quit working

Thu Aug 30 22:36:28 UTC 2018
TE Dukes <tdukes at palmettoshopper.com>

> -----Original Message-----
> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Gordon
> Messmer
> Sent: Thursday, August 30, 2018 6:23 PM
> To: centos at centos.org
> Subject: Re: [CentOS] Mail has quit working
> On 08/29/2018 06:54 PM, TE Dukes wrote:
> > Added back the IPV6 to /etc/hosts a couple days ago for grins and giggles.
> > No longer getting IPV6 errors in logwatch for bind. Everything working.
> >
> > I think removing my ISP's nameservers from /etc/resolv.conf was the fix.
> I just caught up on the thread.  It looks like the core issue was never
> actually resolved:  "getent hosts localhost" still doesn't return the
> expected result, right?
>      $ getent hosts localhost
>      ::1             localhost localhost.localdomain localhost6
> localhost6.localdomain6

Its returning exactly as above 

>      $ grep ^hosts /etc/nsswitch.conf
>      hosts:      files dns myhostname

Its returning: files dns

> If you're not getting the expected result from "getent", and if your
> nsswitch.conf lists "files", then glibc is somehow broken.  "rpm -V
> glibc" might tell you how, or it might not.  Could be that glibc can't
> load /lib64/libnss_files.so.2.

rpm -V returns nothing.

> In any case, DNS is now providing you with a result for "localhost", and
> that'll work around most of the problems, but you really should take
> steps to fix glibc.  With something that low-level broken, I'd urge you
> to build a new system from scratch, and automate the build with some
> configuration management tool this time, so that the next time you need
> to rebuild, you can do it quickly.
> _______________________________________________

Thanks for the follow up!!