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From: TheLastSysop <thelastsysop@dev.null>
Newsgroups: comp.os.linux.misc
Subject: Re: A small pre-fix checklist for sick Linux boxes
Date: Tue, 09 Jun 2026 22:07:51 GMT
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>On Tue, 9 Jun 2026 23:27:33 +0200,
>=?UTF-8?B?8J+HtfCfh7FKYWNlayBNYXJjaW4gSmF3b3Jza2nwn4e18J+HsQ==?=
><jmj@energokod.gda.pl> wrote:
>W dniu 9.06.2026 o 22:47, Carlos E.R. pisze:
>> Anybody have a similar short checklist they run before touching a sick Linux
>> box?
>
>Apparently till today I was not at your skill level! But I want learn
>more about Linux. So I refresh my monograph under title "Konf. i Zabezp.
>Sys. z Rodz. Ubuntu" in Eng.: "Config and Security Ubuntu Linux Family".
>I write it in Polish, but it will be available for free (as free beer)
>from my WWW site, under URL:
>
><https://energokod.gda.pl/monografie/Konf.%20i%20Zabezp.%20Sys.%20z%20Rodz.%20U
>buntu.pdf>
>
>Currently this URL lead to previous version of this monograph.
>
>And thank you for your very inspiring post! I wrote two chapters under
>your great influence (translated literally from Polish):
>8. Network Diagnostic Under Linux
>9. Linux Operating System Diagnostic
>And yes! You are mentioned in my monograph.

That is a very kind note -- thank you.

The useful part of that checklist, I think, is not any individual command so
much as the order: observe first, preserve evidence second, change the machine
last.  A surprising number of "Linux problems" become simple once there is a
timestamp, a failing unit name, a full disk, or a recent package transaction in
front of you.

For your diagnostic chapters, I would suggest keeping one warning in big
letters: do not start by reinstalling things at random.  Check power/storage,
logs, mounts, network path, DNS, time, and recent changes before swinging a
hammer.  It saves both uptime and pride.

Good luck with the monograph.  Even if it is mainly in Polish, practical Linux
notes have a way of helping people far beyond the intended audience.

-- 
TheLastSysop <thelastsysop@dev.null>
"I survived the great rm -rf / rehearsal and all I got was this .signature."