[CentOS] Mail has quit working

Sun Aug 26 14:38:02 UTC 2018
Barry Brimer <lists at brimer.org>

I haven't read through all of this, but is this a CentOS 7 machine? If so .. I believe that systemd has some name resolution facility in it. Has that been looked into?

On August 25, 2018 2:11:38 PM CDT, Stephen John Smoogen <smooge at gmail.com> wrote:
>On Fri, 24 Aug 2018 at 18:16, TE Dukes <tdukes at palmettoshopper.com>
>wrote:
>>
>>
>>
>> > -----Original Message-----
>> > From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of
>Stephen
>> > John Smoogen
>> > Sent: Friday, August 24, 2018 3:58 PM
>> > To: CentOS mailing list
>> > Subject: Re: [CentOS] Mail has quit working
>> >
>> > On Fri, 24 Aug 2018 at 14:15, TE Dukes <tdukes at palmettoshopper.com>
>> > wrote:
>> > >
>> >
>> > > #hosts:     db files nisplus nis dns
>> > > hosts:  dns files myhostname
>> > >
>> >
>> > ^^^ that's probably broke also.
>> > hosts: files dns
>> >
>> > That should be it. Putting dns first works if you can guarentee
>that
>> > DNS works fine all the time but if your DNS caches that localhost
>> > doesn't exist then /etc/hosts isn't used.
>> >
>> > > aliases:    files nisplus
>> >
>> > since you are doing email
>> >
>> > aliases: files
>> >
>> >
>> >
>> > --
>> > Stephen J Smoogen.
>> Hello,
>>
>> Made those changes and rebooted. No change. Still times out.
>>
>
>OK in that case something is really taking your system for a ride. I
>would check to see if that  71.28.79.87 is your 'public' ip address
>with
>
>curl -4 icanhazip.com
>
>if it is then something from named or some other utility is
>translating localhost for you.  host -v localhost might give you more
>information on what is giving lookups crazy answers
>
>[smooge at linode01 ~]$ host -v localhost
>Trying "localhost.members.linode.com"
>Trying "localhost.smoogespace.com"
>Trying "localhost"
>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10855
>;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
>
>;; QUESTION SECTION:
>;localhost. IN A
>
>;; ANSWER SECTION:
>localhost. 10800 IN A 127.0.0.1
>
>Received 55 bytes from 66.228.53.5#53 in 0 ms
>Trying "localhost"
>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2461
>;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
>
>;; QUESTION SECTION:
>;localhost. IN MX
>
>;; AUTHORITY SECTION:
>localhost. 10800 IN SOA localhost. nobody.invalid. 1 3600 1200 604800
>10800
>
>
>
>--
>Stephen J Smoogen.
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