Technology Solutions for Everyday Folks

Tagged with 'mistakes'

Hotend Thermistor With A Silpat, Revisited

I decided to post a quick follow-up to the original fix I'd implemented about ten months ago.

The $1M question was...

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Addressing Firmware Updates for Dell Latitude 54X0 in a Task Sequence

Screenshot of a child task sequence for updating firmware in Full OS mode, with a Run PowerShell Script step highlighted with package and script information.

For about two years we fought with getting firmware (BIOS) updates to install on our Dell Latitude 54X0 models during their build/rebuild using a MEMCM task sequence. No matter what random trick I tried or thing I read, I just couldn't get the update executable to successfully apply the update in our primary build/refresh task sequence. Our techs (self included) would have to apply the update manually after devices were [re]built.

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Upgrading All The Things to Ubuntu 22.04

One of my "winter break" projects this year was to get all of my disparate Ubuntu server instances upgraded and into parity. Last year I wrote about my adventure moving WSL Ubuntu from 18.04 to 20.04, which happened before 22.04 was officially released. In that process I noted the longer-term target of moving to 22.04 which brings us to the here and now!

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Mister Thermistor, Fixed With a Silpat

Screenshot of OctoPrint's temperature graph illustrating a consistent hotend and heated bed temperature with only minor +/- 0.5 degree variations over the course of the previous 30 minutes.

I got hooked into 3D printing late last summer. A problem that cropped up after the first couple months of tinkering and relatively error-less printing was an issue with thermal runaway. Something I could correct for short periods of time, but never make totally go away...

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Upgrading an Old Application to 21st Century Passwords

I have a confession to make: I've ignored a Really Bad Password Form on an inherited web application for about at least a decade too long.

I'm not proud, but every time I considered changing the password mechanism to something more modern (and more secure), decision paralysis would set in...in great part due to the design challenges I anticipated in quietly upgrading this for users of the app in question.

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In-Place Upgrade of WSL Ubuntu 18.04 to 20.04

About two months back (early March to be exact), I had the opportunity to finally deprecate some old versions of applications and packages due to planned retirements and upgrades. Most specifically a full-on move to PHP 7.4 was in sight, though there were other bits. I run and have access to a bunch of different environments so it felt right to get environments back to a standard (or at least closer) base configuration.

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Date Math is Gross

This year, I'm working with/mentoring a paid intern on a device monitoring project for a portion of our fleet. These sort of projects are always fun and meaningful in that we identify a problem or opportunity to improve, and then solve said problem in a way we've not done before. It works out well for everyone involved because we get an improved process or "thing," the intern gains some practical experience and skills (often with stuff they've never encountered), and the intern gets paid to boot.

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Breaking the Chain: An Edge Case of Let's Encrypt Root Certificate Expiration

It's been written about and announced for some time—the forthcoming expiration of the DST Root CA X3 certificate. The good news for most folks is that it's not a big deal. And that, I thought, also included me. For the most part, this has panned out to be true.

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Undo the Undo -- A Short Tale of a Git Mistake

Gif with "Abort the mission" text.

I had one of those "Oh shit, Git!" moments this past weekend...

Mine was that I made a necessary change, and since it was pretty minor (really a typo fix of sorts) I just went ahead and did it in the main branch. NBD. Commit, push, and pull on the remote host, and all is good.

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Whoops! Cleaning up Mistakes via API

Gif with "I've made a huge mistake" as caption.

Posting again after kind of a lengthy break. It's summertime, and for lots of disparate reasons I've queued up topics but haven't had the ambition or taken the time to write them all out. So today we get a tale of automation mistakes and the subsequent cleanup.

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Reinstalling reCAPTCHA

In the last post I wrote about finally cutting off the comments feature due to an abundance of spam.

For about two days, this was successful...

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Comments No More

Well, the time has come...to shut down post comments. Presumably for good.

When I rebooted the site in Drupal a couple of years back, I'd waffled over whether or not to leave post comments enabled. It seemed like an okay idea, but at the same time would they just become a sea of comment spam? At the time of the site reboot, though, I chose not to maintain an active direct contact ("contact us") form due to other technical limitations at the time. So comments seemed an appropriate balance.

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Cleaning Up Old Mistakes Part Deux: Leveraging Includes

This post is the second of a two-part miniseries identifying and correcting old mistakes. Part one discusses cleaning up Git repos based on permissions faux pas.

Today's atonement for old mistakes: Using centralized/standard "includes" for path variables and eliminating passwords from committed code.

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Cleaning Up Old Mistakes: Git Repos With Nested Accounts

This post is the first of a two-part miniseries identifying and correcting old mistakes. Part Deux is also available.

Today's atonement for old mistakes: Git repos used in production in which nested/disparate accounts run code.

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Low-Budget "CI/CD"

Dude with baseball bat smashes monitor off desk

A client project had a database server upgrade in early December, and as I eluded to in a different post from around that time, Git was the shit when it came to making my angle of that migration go smoothly. Past Me made Current Me's life a lot simpler.

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Letting It Go

Viking funeral ship on fire

Last summer we had a pretty gnarly hailstorm, which has ultimately resulted in the need to replace shingles and siding on the house (among several other things). As a result, this has become a launching point for getting some insulation work and window replacement on the project list. Because if we're gonna do the siding, we might as well get those other things done, too.

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Tales From The 'Duh!' Archive: Command Syntax

Cartoon character pushes zombie back into grave

I had a very long week, which means I'm writing a short post this time around.

Among several seemingly disparate things I accomplished in the last week or so, I spent some time deploying applications via SCCM (soon to be called Microsoft Endpoint Manager/Configuation Manager/#MEMCM per the announcement at Ignite this week).

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Environment Context Troubleshooting

Dashed and dotted lines

Broken Context(s). The story of my weekend project.

Due to a number of reasons, mostly well outside my direct control, I spent part of this weekend working through the application and task sequence refresh process for our multi-user workstations...which will need to be finished by August 27.

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Does the Performance Matter?

Does it matter?

Back around 2015 or so, I wrote a simple Powershell script which basically re-populates Active Directory (AD) group membership based on data procured from our central systems. Two primary AD groups in particular are synchronized to our print management system, PaperCut, which pre-provisions accounts and access so folks handling monetary transactions don't have to create accounts, etc.

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I Own You, Drupal View!

I Own You

As I tweeted about in victory a week ago, I managed to finally get my Drupal taxonomy term view(s) to do what I wanted:

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"Just Reload It"

I needed to fix a library-level theme item. And since it's been a while since I last made a change like that (this was all before the original switch to the production Drupal instance), I couldn't remember if it involved uninstalling/reinstalling the theme...or simply clearing the cache.

So I chose the heavy-handed option. What could possibly go wrong, right?

WRONG.

I'm certainly glad I don't have a lot of super-customized stuff (other than some titles and custom block layout stuff to place), because I had to do it all over again.

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