[CentOS] System Start-Up Issue Progress
Gordon Messmer
gordon.messmer at gmail.com
Tue Jul 4 17:13:51 UTC 2017
On 07/04/2017 09:21 AM, Chris Olson wrote:
> It remains a mystery what could have happened during a standard yum
> update of the system to cause this domain and/or host related sendmail
> issue.
Run "hostname". Has the hostname changed? Run "ls -l /etc/hosts
/etc/resolv.conf". Have those files changed recently?
It's possible that this system was working in the past because its
hostname was set up in DNS, and was removed. In that case, the problem
wasn't related to "yum." sendmail would (IIRC) continue working after
the system's hostname was removed from DNS, until the next time the
system rebooted.
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