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<p>Thanks Joerg</p>
<p>I'd already done the diffs and can't see anything unusual, but
the tmp file name startled me, unexpected in an official
distribution. I'll go ahead with the maintainer's version.</p>
<p>Good tip for the <font face="FreeSans">sudo sshd -t, I didn't
know that one.</font></p>
<p><font face="FreeSans">Steve</font></p>
<p><font face="FreeSans"><br>
</font></p>
<div class="moz-cite-prefix">On 17/7/2026 3:02 pm, Joerg Martini
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:272d9689-d8f0-448a-8fc6-8fd8692a7e24@mailbox.org">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p><font face="FreeSans">Check the differences between the new
version and your customized configuration using:<br>
<br>
sudo diff /etc/ssh/sshd_config /tmp/tmp.f*cK1e2O00<br>
<br>
<br>
Decide:<br>
<br>
Keep your local customizations if they are important (e.g.,
custom ports, authentication methods).<br>
<br>
→ No action required (the warning remains, but your system
will continue to function).<br>
<br>
</font> </p>
<p><font face="FreeSans">Apply the new version if you prefer the
default configuration:</font></p>
<font face="FreeSans"><br>
sudo cp /tmp/tmp.f*cK1e2O00 /etc/ssh/sshd_config<br>
<br>
sudo systemctl restart sshd<br>
<br>
<br>
Note: Your manual changes will be lost!<br>
<br>
<br>
If you’re unsure, combine both approaches<br>
<br>
Copy your current configuration as a backup:<br>
<br>
<br>
sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config.backup<br>
<br>
<br>
Manually insert the important changes into the new version:<br>
<br>
sudo nano /tmp/tmp.f*cK1e2O00<br>
<br>
Then replace the old file:<br>
<br>
sudo cp /tmp/tmp.f*cK1e2O00 /etc/ssh/sshd_config<br>
<br>
sudo systemctl restart sshd<br>
<br>
<br>
Verify the configuration after making changes:<br>
<br>
sudo sshd -t<br>
<br>
<br>
The warning appears because your system detects automatic
updates for configuration files.<br>
<br>
SSH is critical—a mistake can block access. Proceed with
caution!<br>
<br>
If you have no idea what you’ve changed: Keep the local version
and check it later when you have time.</font>
<p><br>
</p>
<div class="moz-cite-prefix">Am 17.07.26 um 08:45 schrieb Steve
Boak via plug:<br>
</div>
<blockquote type="cite"
cite="mid:c60c9489-1752-42f5-af11-9d91b894b92e@boak.au">
<meta http-equiv="content-type"
content="text/html; charset=UTF-8">
<p>Hi all</p>
<p>Help!</p>
<p>Doing an upgrade of an old Debian system from bullseye to
trixie, (all /etc/apt/sources.list entries are debian.org
archives), and got this message from sshd:</p>
<p><b>Configuring openssh-server</b></p>
<p><b>A new version (/tmp/tmp.f*cK1e2O00) of configuration file
/etc/ssh/sshd_config is available, but the version installed
currently has been locally modified.</b></p>
<p><b>What do you want to do about modified configuration file
sshd_config? </b></p>
<p>Yes the f*cK... filename is named what you think it is!</p>
<p>Is this just a maintainer's version of fun, or should I be
worried?</p>
<p>The contents of the file don't seen out of order, but...</p>
<p>Steve</p>
<pre class="moz-signature" cols="72">--
Steve Boak, VK6HSB
0411 255 789
P.O. Box 240, Nannup, WA 6275</pre>
<br>
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<pre class="moz-signature" cols="72">--
Steve Boak, VK6HSB
0411 255 789
P.O. Box 240, Nannup, WA 6275</pre>
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