How to move a train table on an unfinished, concrete basement floor

I had to move my train table recently. No, I didn’t have the foresight to put wheels on it. So I had to resort to using furniture movers.

After putting the fuzzy protectors on them, they glide fine on the concrete, without fear of damaging the plastic sliding surface. They might slide alone on concrete too, but I don’t want to scratch the movers up, because I intend to use them elsewhere too. Some online reviewers reported that scratched movers scratch wood floors.

I just lifted each leg of the table, kicked a mover under it, then went around to the next leg. A pair of 4×8 tables is still awkward for one person to move, but if you’re not moving too far, you can do it. If you have help, you can get more ambitious.

University computer science programs need to teach security, not demonize it

I saw this on Slashdot today: A computer science student was expelled from a Canadian university for practicing what most people would call white-hat hacking.

Their reasoning: “Schools are supposed to teach best practice, which includes ethics and adherence to reasonable laws.” But there is such thing as ethical hacking. Read more

Stopping spambots cold with Botblocker

I’ve been absolutely getting pounded lately with spam comments from spambots–to the tune of one spam comment per minute. That’s filling up and slowing down my database and consuming CPU resources that I want for human readers.

So I resorted to installing Botblocker. All I can report right now is that it seems to be working–no spam comments for several hours.

I can’t guarantee it will work forever, and I’ve got Akismet to hide whatever spam gets through, but so far my server seems less busy and more happy, which is good. Things had gotten so bad for a while that I was getting timeouts when trying to post, which is ridiculous.

What I did since I (temporarily) need Java

I’ve been seeing the same question over and over in my search logs lately: Is Java safe to run in 2013?

Generally speaking, the answer is no.

I have little choice but to run Java right now, though. I’m studying for a certification exam, and the best quiz program that I know of is written in Java. Its user interface is in Polish, a language I don’t speak, but that bothers me less than it being written in Java. Google Translate can help me with the Polish, but it can’t make Java safe. That’s up to me.

So here’s what I did.
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