> -----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!!