Author: Dave Farquhar

Another easy Apache tweak

Dave Farquhar Apache , , ,

I ran my site through Google Page Speed on Tuesday, and scored a surprising 88 out of 100–higher than I expected. Getting above 90 is going to take some optimizations on files that WordPress updates may change, so I’m hesitant to do that, but one thing it told me to do was to cache more aggressively. That’s pretty easy, as it turns out, and I could definitely feel a difference afterward.

Here’s the trick. Read more

CISPA is trying to solve a legitimate problem

Dave Farquhar security , , , , , ,

I read yet another anti-CISPA piece today. I’m not comfortable trying to read it and decide whether it’s a good or bad piece of legislation, but I do understand the problem it’s trying to solve.

Those who have tried to paint CISPA as the new SOPA or PIPA are misunderstanding the problem CISPA is trying to solve. CISPA isn’t supposed to be about stopping the scourge of teenaged boys using the Internet to copy music and movies. It’s actually chasing something nefarious.

Let me give you an example.
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Losing my lunch

Dave Farquhar Personal ,

The worst Mondays have to be the day after a long weekend, or, as I’m fond of putting it, when Monday happens on Tuesday.

This particular Monday-on-a-Tuesday didn’t start well. I staggered in to work at 6 AM, and my boss said, well, let’s just say he didn’t say I looked well.

At 11 AM, lunchtime finally came. My lunchtime routine for years now has been to bring a frozen meal from home and microwave it. Everyone knows it. But not today, I didn’t. I went looking for my lunch, and couldn’t find it. “What are you doing?” my boss asked. “And why do you have your coat?”

“I lost my lunch,” I told my boss. That phrase has some history in my parts. Read more

How to use price guides

Dave Farquhar Toy trains , , , , , ,
How to use price guides

Pricing collectibles is more art than science, and most guides have some errors in them, so large (or at least very vocal) numbers of people mistrust them.

I still use them, however. Knowing how they’re produced–or would be produced, in a perfect world with perfect data–helps someone to use them to maximum effect. The principles are the same for any guide, whether you’re talking trains or video games or baseball cards or any other collectible. Read more

How to customize Matchbox or Hot Wheels cars

Dave Farquhar Toy trains , , , , , , , , ,
How to customize Matchbox or Hot Wheels cars

It’s fun to customize Matchbox or Hot Wheels cars. I tend to buy representations of pre-1950 cars and un-hotrod them so they’ll look like they belong on my O27 (1:64-ish) train layout; others buy them, paint them differently and put different wheels on them to make something different from what Mattel sells.

It’s a job you can do with simple tools and materials, at least at first. But like many things, you can keep it as simple or get as advanced as you like. And while you won’t do your first car in 15 minutes, it’s easy to divide a car project into 15-minute-per-day steps, especially if you work on two or three of them at once, and at the end of a week you’ll have a few nice cars to show for your time and effort.

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Ars Technica looks at asymmetric enryption

Dave Farquhar security , ,
Ars Technica posted an overview of asymmetric encryption recently. (Link removed in retaliation for Conde Nast’s 11/3/2025 layoffs. Sorry not sorry.)

Fight voltage drop with copper anti-seize lubricant

Dave Farquhar model railroading, Toy trains , , ,

If you have issues with your trains slowing down on the far reaches of your layout–and judging from my website hits, many people do–there are a couple of things to do about it. The first thing is to run additional feeder wires. Going by the book, you should go every third track section. Do I push it a little? Sure. Sometimes I can get away with a little less than that, and sometimes every three sections isn’t quite enough.

But over time, the conductivity between track sections can wane a bit, as moisture and oxidation creep in. Coating track pins with copper anti-seize lubricant keeps the moisture out, which keeps oxidation out, which makes the layout more reliable, especially if the layout is outdoors, in the garage, or in the basement. Read more

CPE opportunity: Exploding the Phone

Dave Farquhar security , , , , , ,

This week Cnet interviewed Phil Lapsley, the author of Exploding the Phone, a book about the early history of phone phreaking.

Phone phreaking is absolutely fair game for the CISSP exam. I couldn’t tell you anymore how many phone phreaking questions I had to answer, but let me just say I’m glad I’d read those pages in the CBK about phone phreaking.

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ARM exec says: $100 tablets are the key to mass adoption

Dave Farquhar Android , , ,

This week, ARM said what several people seem to have figured out: The key to mass adoption for smartphones and tablets is the $100 price point.

It may happen this year. It’s not hard to find a decently fast $80 Android tablet, but you’ll have to put up with a sub-optimal screen to get it–800×480.
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Clean up the white goop on postwar Lionel and American Flyer with a hair dryer

Dave Farquhar Toy trains , , , , ,

I picked up some dilapidated postwar American Flyer wheels at the local train store this afternoon to fix up some stuff from my junk box. The wheels were covered in milky white goo/powder/gunk/residue/stuff–whatever you want to call it. Almost anything molded of black plastic–wheels, couplers, truck sides–by Lionel or American Flyer in the 1940s and 1950s is prone to this. Fortunately, the fix is easy. Aim a hair dryer on high at it, and watch the whiteness melt away, leaving clean plastic behind.

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