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Tuesday, 2 March 2021 Dereel
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Mail configuration issues
Topic: technology, opinion Link here

Every day I get messages from my external server lax.lemis.com, like this one:

Date: Mon, 1 Mar 2021 05:30:00 GMT
From: Charlie Root <root@lemis.com>
To: root@lax.lemis.com
Subject: lax.lemis.com monthly run output
Message-Id: <202103010530.1215U0TY066318@lax.lemis.com>

Nothing very interesting, but one point sticks out:

Date: Mon, 1 Mar 2021 05:30:00 GMT

Huh? I don't use no steenking GMT. The system is set to UTC, isn't it?

=== grog@lax (/dev/pts/2) ~ 11 -> date
Tue  2 Mar 2021 01:25:46 UTC

Right. So where did that GMT come from? Something in the postfix configuration file? Couldn't find anything. Google. Nothing useful.

Look at those headers again:

Received: from lax.lemis.com (www.lemis.com [45.32.70.18])
        by eureka.lemis.com (Postfix) with ESMTP id D5280263591
        for <root@lax.lemis.com>; Mon,  1 Mar 2021 16:30:01 +1100 (AEDT)
Received: from lax.lemis.com (localhost [127.0.0.1])
        by lax.lemis.com (Postfix) with ESMTP id 4334A2812A
        for <root@lax.lemis.com>; Mon,  1 Mar 2021 05:30:00 +0000 (UTC)
Received: (from root@localhost)
        by lax.lemis.com (8.15.2/8.15.2/Submit) id 1215U0TY066318
        for root; Mon, 1 Mar 2021 05:30:00 GMT
        (envelope-from root)

The first header (last in the list) shows GMT, the next shows UTC. But what's this (8.15.2/8.15.2/Submit)? That looks like sendmail, not postfix.

I've been running a local mail server for 30 years now, first sendmail, then postfix. I've written books with information about how to set up mail. And somehow I still don't understand what I'm doing. It's not made any easier by the fact that postfix pretends to be sendmail:

=== grog@lax (/dev/pts/2) ~ 14 -> pkg which /usr/local/sbin/sendmail
/usr/local/sbin/sendmail was installed by package postfix-3.4.8,1

Probably the big issue is that the postfix installation doesn't do the job properly, and since FreeBSD still comes with sendmail, I have a combination of the two. Yet Another thing to ponder.


Still more mail puzzles
Topic: technology, opinion Link here

More spam:

From fishingov3@mail-relay.msc.com  Mon Mar  1 23:42:18 2021
Return-Path: <fishingov3@mail-relay.msc.com>
X-Original-To: ct@lemis.com
Delivered-To: ct@lemis.com
Received: from lax.lemis.com (www.lemis.com [45.32.70.18])
        by eureka.lemis.com (Postfix) with ESMTP id 9C6D12635BE
        for <ct@lemis.com>; Mon,  1 Mar 2021 23:42:17 +1100 (AEDT)
Received: from 79-100-162-206.ip.btc-net.bg (79-100-162-206.ip.btc-net.bg [79.100.162.206])
        by lax.lemis.com (Postfix) with ESMTP id 3C85828034;
        Mon,  1 Mar 2021 12:42:15 +0000 (UTC)
Received: from [213.80.138.183] (helo=rxeb.ruuc.club)
        by 79-100-162-206.ip.btc-net.bg with esmtpa (Exim 4.85)
        (envelope-from carpetbaggedld506@mail-relay.msc.com)
        id 5iae8zjv2yf6bjf.9.20210301144213
        for freebsdg@lemis.com; Mon, 1 Mar 2021 14:42:13 +0200
Received: from  (
        [124.175.187.15])        by 79-100-162-206.ip.btc-net.bg with SMTP id
        C897B19FBB; Mon, 1 Mar 2021 14:42:13 +0200
Date: Mon, 1 Mar 2021 14:42:13 +0200
Message-ID: <AA9a.eC01.bAe9193EE8.A1377@ngbw.gaws.com>
From: "MSC Inc." <Freddie.Dean@msc.com>
To: freebsdg@lemis.com
Subject: Ocean Freight Statement Of Outstanding As Of 03_01_2021

Look at the sender address: fishingov3@mail-relay.msc.com. Doesn't that smell of phishing? Still, not a problem. I have different mail IDs for everywhere I sign up to, so I can find out who spread the mail address. freebsdg@lemis.com? Who's that?

Nobody! The email address doesn't exist, and I was able to confirm that mail to that address bounced. So how did this one get through? It wasn't until much more careful analysis that I saw the

X-Original-To: ct@lemis.com
Delivered-To: ct@lemis.com

OK, that was c't magazine from Heise. I don't use that any more, so just remove it.

Oh. That address doesn't exist either. So how did this message get through?


USA: Technological shot in foot
Topic: politics, technology, opinion Link here

Interesting statistics from Statista today:

https://cdn.statcdn.com/Infographic/images/normal/20095.jpeg

The 5G market is dominated by Asian companies, first and foremost Huawei. And the USA has banned them. Not surprisingly, US takeup of 5G technology is correspondingly slow. Bravo, Donald Trump!


Trump: Back to the future?
Topic: politics, history, multimedia, opinion Link here

We watched Back to the Future Part II on TV last night. The apocalyptic future took place in 2015. What a horrible place! But somehow it looked eerily familiar. Biff, the bad man, bore an eerie similarity with Donald Trump, and even his Biff building reminded of Trump Tower. But probably the most obvious similarity was the personality cult.

Who says we hadn't been warned?


Wednesday, 3 March 2021 Dereel Images for 3 March 2021
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What's a frypan?
Topic: food and drink, language, opinion Link here

I cook a lot with frying pans, but they seem to be a lost cause nowadays: they have been replaced by “frypans”. How do you pronounce that? With some pronounced US American accent? OED explains some of the confusion with a quote from 1963:

The term fry pan rarely occurs before the 1950s. When it does, it is often as the double fry or omelette pan... But the advent of the electric fryers marks a revival of fry pans.

So 50 years ago it was an electric frying pan like the Sunbeam Frymaster that I bought on 10 October 1967. That differed significantly from manual frying pans in that the heat output was greatly limited. It's interesting that they don't seem to be around any more. The term "Frymaster" now appears to refer to deep fryers.

But today ALDI had frying pans on special. And looking at their offerings, I can have it both ways:


https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20210303/big/Frypans.jpeg
Image title: Frypans          Dimensions:          958 x 483, 51 kB
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Three frypans, a frying pan and a frying pan storage rack (does it also take frypans?). Why that? My best guess is that the terminology comes from the manufacturer, not ALDI.


A new frying pan
Topic: food and drink, opinion Link here

Do I need a new frying pan? No, we already have no fewer than 16 in active service, along with 3 paelleras and a wok. And then there are another 5 that we no longer use.

But one of the frying pans (and not frypans) that ALDI had on offer today was special:

 
https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20210303/big/Frypans-detail.jpeg
Image title: Frypans detail
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A big pan with a glass lid! I don't have one of those, but I need one. OK, just one more...

So now we have a total of 22 fry.*pans. High time to get rid of some of them, along with another 7 old saucepans, even the one that, in a fit of pique, I threw across the kitchen in the Frog Pond in April 1978 because it dared to burn my ghee rice, breaking off the end of the handle in the process:


https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20210303/big/Frying-pans.jpeg
Image title: Frying pans          Dimensions:          5073 x 1356, 1548 kB
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https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20210303/big/Saucepans.jpeg
Image title: Saucepans          Dimensions:          4850 x 1921, 1832 kB
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https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20210303/big/Saucepans-detail.jpeg
Image title: Saucepans detail          Dimensions:          1193 x 990, 255 kB
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Hopefully they'll find a good home.


Trump: back from the future
Topic: politics, history, multimedia, opinion Link here

How about that, yesterday's observation about Back to the Future Part II and Donald Trump was no coincidence. To quote this report,

In a new interview with The Daily Beast [behind a paywall], writer and producer Gale explained how Trump inspired the troublesome teen [Biff Tannen]. This admission came after the outlet pointed out parallels between Biff and the POTUS, with the character having used his fortune exclusively for himself.

Asked if Trump was on his mind during the writing process, he replied: “We thought about it when we made the movie! Are you kidding?”

In passing, this is the first I have heard of the New Musical Express in nearly 60 years. They seem to have become the enemy (with emphasis on the last syllable, as in French).


More spam relaying investigations
Topic: technology, opinion Link here

So how did I get spam sent to a non-existent address? Time to check the logs on lax, the only visible external MX:

Mar  1 12:42:14 lax postfix/smtpd[68786]: connect from 79-100-162-206.ip.btc-net.bg[79.100.162.206]
Mar  1 12:42:15 lax postfix/smtpd[68786]: 3C85828034: client=79-100-162-206.ip.btc-net.bg[79.100.162.206]
Mar  1 12:42:15 lax postfix/cleanup[68789]: 3C85828034: message-id=<AA9a.eC01.bAe9193EE8.A1377@ngbw.gaws.com>
Mar  1 12:42:16 lax postfix/qmgr[9196]: 3C85828034: from=<fishingov3@mail-relay.msc.com>, size=50473, nrcpt=2 (queue active)
Mar  1 12:42:17 lax postfix/smtpd[68786]: disconnect from 79-100-162-206.ip.btc-net.bg[79.100.162.206] ehlo=1 mail=1 rcpt=2 data=1 quit=1 commands=6
Mar  1 12:42:17 lax postfix/smtp[68790]: 3C85828034: to=<freebsdg@lemis.com>, relay=mx0.lemis.com[121.200.11.253]:25, delay=2.5, delays=1.6/0.01/0.65/0.24, dsn=5.1.1, status=bounced (host mx0.lemis.com[121.200.11.253] said: 550 5.1.1 <freebsdg@lemis.com>: Recipient address rejected: User unknown in local recipient table (in reply to RCPT TO command))
Mar  1 12:42:18 lax postfix/smtp[68790]: 3C85828034: to=<ct@lemis.com>, relay=mx0.lemis.com[121.200.11.253]:25, delay=3.4, delays=1.6/0.01/0.65/1.1, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 9C6D12635BE)
Mar  1 12:42:18 lax postfix/cleanup[68789]: 9E67A28135: message-id=<20210301124218.9E67A28135@lax.lemis.com>
Mar  1 12:42:18 lax postfix/bounce[68791]: 3C85828034: sender non-delivery notification: 9E67A28135
Mar  1 12:42:18 lax postfix/qmgr[9196]: 9E67A28135: from=<>, size=2944, nrcpt=1 (queue active)
Mar  1 12:42:18 lax postfix/qmgr[9196]: 3C85828034: removed

OK, so the To: header included freebsdg@lemis.com, but it was rejected. Only ct@lemis.com was accepted. But why?

What about the mx0 (eureka) logs?

Mar  1 23:42:17 eureka postfix/smtpd[85149]: connect from www.lemis.com[45.32.70.18]
Mar  1 23:42:17 eureka postfix/smtpd[85149]: 9C6D12635BE: client=www.lemis.com[45.32.70.18]
Mar  1 23:42:17 eureka postfix/smtpd[85149]: 9C6D12635BE: reject: RCPT from www.lemis.com[45.32.70.18]: 550 5.1.1 <freebsdg@lemis.com>: Recipient address rejected: User unknown in local recipient table; from=<fishingov3@mail-relay.msc.com> to=<freebsdg@lemis.com> proto=ESMTP helo=<lax.lemis.com>
Mar  1 23:42:17 eureka postfix/cleanup[85152]: 9C6D12635BE: message-id=<AA9a.eC01.bAe9193EE8.A1377@ngbw.gaws.com>
Mar  1 23:42:18 eureka postfix/smtpd[85149]: disconnect from www.lemis.com[45.32.70.18] ehlo=1 mail=1 rcpt=1/2 data=1 quit=1 commands=5/6
Mar  1 23:42:18 eureka postfix/qmgr[16506]: 9C6D12635BE: from=<fishingov3@mail-relay.msc.com>, size=50652, nrcpt=1 (queue active)
Mar  1 23:42:18 eureka postfix/local[85154]: 9C6D12635BE: to=<groggyhimself@lemis.com>, orig_to=<ct@lemis.com>, relay=local, delay=1.1, delays=0.95/0.01/0/0.11, dsn=2.0.0, status=sent (delivered to command:  exec /usr/local/bin/procmail -t 2>>/home/grog/Mail/procmailerr || exit 75)
Mar  1 23:42:18 eureka postfix/qmgr[16506]: 9C6D12635BE: removed

So it knows ct@lemis.com, and it knows that it gets sent to me. But how? It's not in the virtual table. Another sendmail issue? It shouldn't be: the ball is clearly now in postfix's court. And try as I may, I couldn't find any reference to ct@ in the mail configuration.

What am I missing?


Free tools?
Topic: general, opinion Link here

Walking the dogs the other day, I found a screwdriver in the middle of the road. Presumably it had fallen off a truck, and the likelihood of the owner coming back to collect it was minimal. So I kept it.

Then today it happened again:


https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20210303/big/Free-tools-1.jpeg
Image title: Free tools 1          Dimensions:          3888 x 5254, 5483 kB
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https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20210303/big/Free-tools-2.jpeg
Image title: Free tools 2          Dimensions:          5186 x 3888, 4778 kB
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That one looks almost completely new. It's from ALDI and surprisingly like one I have. Somehow I'm reminded of the dead mobile phone I found in the paddock 15 years ago:


https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20060917/big/phone.jpeg
Image title: phone          Dimensions:          2816 x 2112, 1203 kB
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Hopefully the cause isn't the same.


This page contains (roughly) yesterday's and today's entries. I have a horror of reverse chronological documents, so all my diary entries are chronological. This page normally contains the last two days, but if I fall behind it may contain more. You can find older entries in the archive. Note that I often update a diary entry a day or two after I write it.     Do you have a comment about something I have written? This is a diary, not a “blog”, and there is deliberately no provision for directly adding comments. It's also not a vehicle for third-party content. But I welcome feedback and try to reply to all messages I receive. See the diary overview for more details. If you do send me a message relating to something I have written, please indicate whether you'd prefer me not to mention your name. Otherwise I'll assume that it's OK to do so.


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