[CentOS] Mail has quit working

[TE Dukes]

> -----Original Message-----
> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Barry
> Brimer
> Sent: Sunday, August 26, 2018 10:38 AM
> To: CentOS mailing list
> Subject: Re: [CentOS] Mail has quit working
> 
> 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.

Thanks, yes it's a CentOS 7.5.1804. I do not know about the system.