David L. Farquhar on technology old and new, computer security, and more
Some epoxies work better on plastics than others. Modern plastics can be tricky to glue. But there’s more to repairing plastics than just making sure you bought the best epoxy for plastic. Prep work is essential too. While some epoxies definitely work better than others, the prep work can also make or break your project.
There are people who want you to think VPNs are illegal. As a security professional, this is a point of frustration for me. If anyone ever asks, “are VPNs illegal?” the answer most certainly is no. VPNs are a necessity, and protected by various constitutional amendments. Yes, more than one.
The Atari 2600 and 7800 are directly related. After the Atari 5200 flopped, Atari needed a better successor to take over for the aging 2600. So the Atari 2600 vs 7800 is a natural comparison. Let’s look at the improvements the 7800 had over its predecessor, and why it wasn’t able to match the 2600’s runaway success.
How long does it take for caulk to dry before painting? It depends on the formulation of the caulk, so the right answer the last time you did a project may not be the same as this time.
Paintable caulk is ready for paint in about 30 minutes. Other types of caulk take considerably longer, from 24 hours to as much as 10 days.
I do a lot of statistical analysis in my day job. Though my job title is no longer security analyst, I literally analyze computer security issues and make recommendations for a living. You couldn’t study information security when I was in college, because the field barely existed then. My formal training is in journalism. But my journalism degree means I have more formal training in statistics than most people I know. So let’s look at median vs mean vs mode, and when to use each of them.
Median, mean, and mode are three different approaches to trying to answer the same question. Out of all the numbers you collected, what is typical?
I hate when this happens. I’m at the end of a project, I take the battery out of whatever Ryobi tool I was using, put it on the charger, and get that infernal flashing red light. Why are Ryobi batteries so bad? Here’s what to do when your Ryobi battery won’t charge.
Sometimes your Ryobi battery won’t charge just because it’s too hot. Other times it’s because it’s discharged too far, in which case, you may be able to jumpstart it to bring it back to life.
It’s a good idea to periodically back up your WordPress site. That way, if something unexpected happens, you can recover. You should also back it up prior to major upgrades. Here’s how to backup a WordPress site, quickly and easily, at little to no cost.
The Commodore 1571 was Commodore’s successor to the notorious 1541 disk drive. It addressed many of the shortcomings of the 1541, partly because Commodore had more time to get it right this time. It was the same color and style as the Commodore 128. And they worked as well together as they looked together. It was a high-end drive, but I hesitate to call it Commodore’s top-end 5.25-inch drive. I’d give that distinction to the SFD-1001.
Commodore introduced the 1571 in 1985 at a price of $299 US. It was a double-sided, double density 5.25-inch disk drive that was faster than the 1541 when you used it with the 128, and maintained good backward compatibility with the 1541 when needed.
The only thing worse than painting is unplanned repainting. So it’s good to ask questions first. One good question is this: Can you paint semi gloss over flat paint? Let’s explore.
I use an SEO plugin called Yoast. I’m not exactly enamored with it, but I’m also not sure I can switch to something better. One reason I’m not enamored with it is its high CPU usage. I had to fix it from the MariaDB side. Here’s how I figured out how to limit CPU usage in MariaDB.