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Date: Sun, 12 Oct 2025 14:16:39 +0200
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Subject: Re: ddclient: file ownership error
To: ~alpine/users@lists.alpinelinux.org
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From: Wolfgang Klein <klein.wolfg@web.de>
In-Reply-To: <aOuVyvX1Q9Y2MIlz@eeyore.invalid>
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Andreas K=C3=A4h=C3=A4ri wrote:

> You should not change the shell for the ddclient user.  The fact that

Yes, you're right, but...

> 	su -p ddclient -c 'ddclient -debug -verbose'
>
> The "-p" avoids invoking the user's nologin shell.

...I did not know this. Shame on me!

>
> Glancing at the documentation (https://ddclient.net/), it seems like the
> "-daemon=3D0" and "-noquiet" are set by default, so it's not clear why
> you need to set them explicitly.

Well, I assumed that the option "-daemon=3D0"=C2=A0would not start a daemo=
n,=20
but would just run the command once and exit. It's what the zero=20
suggests, isn't it? ;)


> The rest of the configuration is read
> from the configuration file, and you haven't shown us that file (if you
> post it, ensure to redact any sensitive information, like passwords and
> usernames).
>
>

Here's the configuration file, copied from another machine, where=20
ddclient is running successfully and which is taken from the=20
installation instructions on dnshome.de:


#usev4=3Dwebv4,webv4=3Dipify-ipv4
ssl=3Dyes
daemon=3D3600
use=3Dweb, web=3Dip.dnshome.de
syslog=3Dyes
# Protocol
protocol=3Ddyndns2
server=3Dwww.dnshome.de
login=3Dmyserver.dnshome.de
password=3Dmypassword
myserver.dnshome.de


I already learned that many things are different on Alpine, so I guess I=
=20
will have to adjust that file.


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<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-=
8">
  </head>
  <body>
    <br>
    <div class=3D"moz-cite-prefix">Andreas K=C3=A4h=C3=A4ri wrote:<br>
      <br>
    </div>
    <blockquote type=3D"cite" cite=3D"mid:aOuVyvX1Q9Y2MIlz@eeyore.invalid"=
>
      <pre wrap=3D"" class=3D"moz-quote-pre">
You should not change the shell for the ddclient user.  The fact that</pre=
>
    </blockquote>
    <br>
    Yes, you're right, but...<br>
    <br>
    <blockquote type=3D"cite" cite=3D"mid:aOuVyvX1Q9Y2MIlz@eeyore.invalid"=
>
      <pre wrap=3D"" class=3D"moz-quote-pre">
	su -p ddclient -c 'ddclient -debug -verbose'

The "-p" avoids invoking the user's nologin shell.
</pre>
    </blockquote>
    <br>
    ...I did not know this. Shame on me!<br>
    <br>
    <blockquote type=3D"cite" cite=3D"mid:aOuVyvX1Q9Y2MIlz@eeyore.invalid"=
>
      <pre wrap=3D"" class=3D"moz-quote-pre">

Glancing at the documentation (<a class=3D"moz-txt-link-freetext" href=3D"=
https://ddclient.net/">https://ddclient.net/</a>), it seems like the
"-daemon=3D0" and "-noquiet" are set by default, so it's not clear why
you need to set them explicitly.  </pre>
    </blockquote>
    <br>
    Well, I assumed that the option=C2=A0<span style=3D"white-space: pre-w=
rap">"-daemon=3D0"</span>=C2=A0would
    not start a daemon, but would just run the command once and exit.
    It's what the zero suggests, isn't it? ;)=C2=A0<br>
    <br>
    <br>
    <blockquote type=3D"cite" cite=3D"mid:aOuVyvX1Q9Y2MIlz@eeyore.invalid"=
>
      <pre wrap=3D"" class=3D"moz-quote-pre">The rest of the configuration=
 is read
from the configuration file, and you haven't shown us that file (if you
post it, ensure to redact any sensitive information, like passwords and
usernames).


</pre>
    </blockquote>
    <br>
    Here's the configuration file, copied from another machine, where
    ddclient is running successfully and which is taken from the
    installation instructions on dnshome.de:<br>
    <br>
    <br>
    #usev4=3Dwebv4,webv4=3Dipify-ipv4<br>
    ssl=3Dyes=C2=A0<br>
    daemon=3D3600<br>
    use=3Dweb, web=3Dip.dnshome.de<br>
    syslog=3Dyes<br>
    # Protocol<br>
    protocol=3Ddyndns2<br>
    server=3Dwww.dnshome.de<br>
    login=3Dmyserver.dnshome.de<br>
    password=3Dmypassword<br>
    myserver.dnshome.de<br>
    <br>
    <br>
    I already learned that many things are different on Alpine, so I
    guess I will have to adjust that file.<br>
    <br>
    <br>
  </body>
</html>

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