[Systems] Fwd: Killing the systemd user session on logout

Bernie Innocenti bernie at codewiz.org
Sun Jul 12 00:20:55 EDT 2020

Done. Please tell me whether you see a broken DKIM signature in my 
previous email to systems@ and whether it's good now.

On 12/07/2020 13.16, Bernie Innocenti wrote:
> I didn't know this!
>  From the opendkim.conf manpage:
> ---cut---
> Canonicalization (string)
> Selects the canonicalization method(s) to be used when signing messages. 
>   When verifying, the message's DKIM-Signature: header  field  specifies 
>   the canonicalization  method.   The recognized values are relaxed and 
> simple as defined by the DKIM specification.  The default is simple. The 
> value may include two different canonicalizations separated by a slash 
> ("/") character, in which case the first will be applied to the header 
> and the second to the body.
> ---cut---
> I'll try changing it...
> -------- Forwarded Message --------
> Subject: Re: Killing the systemd user session on logout
> Date: Sun, 12 Jul 2020 07:02:51 +1200
> From: Ben Cooksley <bcooksley at kde.org>
> To: bernie at codewiz.org
> Hi Bernie,
> Just as a note, about half of the subscribers to the list won't have
> seen your email as the DKIM signature on your email broke when it
> transitioned through KDE.org infrastructure. As a consequence, your
> DMARC policies for the domain will cause providers to either refuse or
> immediately send the email to spam (which is what happened for me)
> This is due to your DKIM signature being in c=simple/simple mode,
> rather than c=relaxed/relaxed mode.
> When in simple mode, any changes to the technical formatting of a
> message cause the signature to break, even if the actual content is
> left completely unchanged. Unfortunately when messages pass via
> Mailman, it re-encodes the content of the message, which often breaks
> these c=simple/simple signatures.
> If you could change your setup (looks like sugarlabs.org run it for
> you) to use relaxed/relaxed mode, then this should be resolved. If
> they're using OpenDKIM then they can do this using the following
> setting:
> Canonicalization        relaxed/relaxed
> Regards,
> Ben
> On Sun, Jul 12, 2020 at 3:15 AM Bernie Innocenti <bernie at codewiz.org> 
> wrote:
>> I'm trying to fix this longstanding bug where there are dangling user
>> processes after the desktop session exists:
>>    https://bugs.kde.org/show_bug.cgi?id=359651
>> This is reproducible every time on multiple distributions and KDE
>> versions. It also causes subsequent logins to fail or behave
>> surprisingly due to the presence of extraneous dbus services, pulseaudio
>> clients, etc.
>> I looked into plasma-workspace/startkde, and there's no hint of it
>> starting "systemd --user" directly. There's this cli tool called
>> "kde-systemd-start-condition" (which appears to be unused), and a few
>> other mentions of logind and systemd, but nothing really relevant.
>> Am I looking in the wrong place?
>> -- 
>> _ // Bernie Innocenti
>> \X/  https://codewiz.org/

_ // Bernie Innocenti
\X/  https://codewiz.org/

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