From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org
X-Spam-Level: *
X-Spam-Status: No, score=1.1 required=5.0 tests=DATE_IN_PAST_03_06
	autolearn=no autolearn_force=no version=3.4.4
Received: (qmail 29249 invoked from network); 26 Jun 2021 03:19:18 -0000
Received: from 1ess.inri.net (216.126.196.35)
  by inbox.vuxu.org with ESMTPUTF8; 26 Jun 2021 03:19:18 -0000
Received: from 5ess.inri.net ([107.191.111.177]) by 1ess; Fri Jun 25 17:40:01 -0400 2021
Received: from [127.0.0.1] ([107.207.65.229]) by 5ess; Fri Jun 25 17:21:56 -0400 2021
Date: Fri, 25 Jun 2021 17:21:54 -0400
From: Stanley Lieber <sl@stanleylieber.com>
To: 9front@9front.org
In-Reply-To: <YNYaI80ucF6HD5t5@wopr>
References: <1FC08B4E4797C194AE4949ACB7B0D467@bss-wf.de> <9A009966-F20C-49DF-A9F1-C2128929D06B@stanleylieber.com> <YNYaI80ucF6HD5t5@wopr>
Message-ID: <75418F19-3615-43AF-8BBF-532350ED207E@stanleylieber.com>
MIME-Version: 1.0
Content-Type: text/plain;
 charset=utf-8
Content-Transfer-Encoding: quoted-printable
List-ID: <9front.9front.org>
List-Help: <http://lists.9front.org>
X-Glyph: ➈
X-Bullshit: optimized overflow-preventing ORM over SQL blockchain injection storage 
Subject: Re: [9front] Mailing list mails completely lost?
Reply-To: 9front@9front.org
Precedence: bulk

On June 25, 2021 2:02:11 PM EDT, Kurt H Maier <khm@sciops=2Enet> wrote:
>On Fri, Jun 25, 2021 at 10:22:26AM -0400, Stanley Lieber wrote:
>> I still see a lot of:
>>=20
>> 1ess Jun 25 10:15:09 delivery '/net=2Ealt/dns' does not exist (net!bss-=
wf=2Ede)
>>=20
>> in the logs=2E this is not just you; many, many delivery attempts end u=
p as similar entries in /sys/log/smtp=2Efail=2E I still don't know why this=
 is happening=2E I'll try to rig some extra logging to see once and for all=
 what is going on=2E
>
>Which DNS resolver are you querying?  I presume not 9cloud, but I used
>to have problems with assholes returning AAAA records that were useless=
=2E
>
>khm
>

we've been seeing similar behavior for a long time=2E that "'/net=2Ealt/dn=
s' does not exist" error shows up *a lot* in the logs, frequently for hosts=
 that do exist and whose hostnames do resolve on the command line=2E

a month or so ago, as an experiment, I switched from opendns=2Eorg servers=
 to running a local resolver=2E it goes like this:

# should work with only -n, but doing so breaks domain resolution for the =
local system
ndb/dns -nrs

and in /lib/ndb/local:

sys=3D1ess dom=3D1ess=2Einri=2Enet
ether=3D525400099935 ip=3D216=2E126=2E196=2E35                            =
                         =20
ipmask=3D255=2E255=2E255=2E0                               =20
ipgw=3D216=2E126=2E196=2E33                                   =20
auth=3D216=2E126=2E196=2E35                                    authdom=3Dy=
oyodyne                              =20
#       dns=3D208=2E67=2E222=2E222                            =20
#       dns=3D208=2E67=2E220=2E220                                    =20
dns=3D216=2E126=2E196=2E35                                    =20
mx=3D1ess=2Einri=2Enet pref=3D5                               =20
txtrr=3D"v=3Dspf1 mx -all"

that said, I'm not entirely sure what goes on between all the little progr=
ams involved in mail delivery that access dns, or how to track same=2E

I also don't understand why /net=2Ealt isn't found, since /net is mounted =
over /net=2Ealt each time in tcp25 and tcp587 *before* running any mail com=
mands (btw, the listener that runs tcp25 and tcp587 runs as user upas, not =
as user none)=2E

sl