Finding and blocking an abusive host from your Apache log

Finding and blocking an abusive host from your Apache log

My web site slowed to a crawl last night, my CPU usage soared to 100%, and my built-in security measures weren’t helping. I ended up having to do some old-school Linux sysadmin work to stop them.

I haven’t been an everyday sysadmin since 2009. But every once in a while I can still come off the bench and do this stuff.

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What salary do I need to buy a house?

What salary do I need to buy a house?

What salary do I need to buy a house? I struggled with that question in my 20s and it probably kept me renting a year or so longer than I really needed to be. Then again, considering the housing crisis of 2007-2008, renting a year or so longer was a small price to pay to avoid potentially making the biggest financial mistake of my life.

One of the reasons for that financial crisis was not enough people asking that question. A second reason was banks being dishonest about the answer.

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Using Adsense with WordPress

I first started using Google Adsense sometime in 2003 or 2004. But using Adsense with WordPress isn’t completely straightforward. So here’s an easy, concise guide to using Adsense with WordPress, including within your content.

I’m not a full-time blogger. I’m a computer security analyst by day, and blog part time. I went to journalism school in the ’90s in hopes of landing a job that doesn’t exist anymore. Some of what I learned about printing magazines applies to modern blogging. Some of it is subtly different. I don’t need to make a ton of money blogging, but I don’t blog to lose money either. There are an awful lot of bad people with bad motives making a lot of money online off sketchy or downright dishonest content. I’m writing this so the good guys can learn what the bad guys know, and make a little money too.

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What happened to Digital Equipment Corporation?

What happened to Digital Equipment Corporation?

Digital Equipment Corporation was perhaps the second most important computer company in history, behind IBM. Its minicomputers challenged IBM, and, indeed, Unix first ran on a DEC PDP-7. DEC’s Alpha CPU was one of the few chips to make Intel nervous for its x86 line. It created the first really good Internet search engine. In a just and perfect world, DEC would still be dominating. Instead, it faded away in the 1990s. What happened to Digital Equipment Corporation, or DEC?

There’s a short answer and a long answer.

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Replace your UPS battery

Replace your UPS battery

My UPS started squawking one Friday evening, the tell-tale sign that the battery was dead or dying. When that happens, it’s time to either replace the UPS battery, or replace the entire UPS. Hopefully you can just replace the battery. Here’s how to replace your UPS battery.

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Still use Windows XP? Let’s talk options.

If you still use Windows XP, I wish you’d stop. Seriously, for your safety and the safety of others, I wish you’d stop. The good news is you have some options, and you’ll probably be happier with one of them.

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What is Charter Spectrum?

What is Charter Spectrum? Charter Spectrum is a new name to many parts of the country. Spectrum is the brand name for cable, Internet and phone service from Charter Communications.

Although Charter started using the Spectrum name prior to its merger, the name Spectrum gained prominence as a result of the second, fourth, and sixth-largest cable operators in the United States merging in 2016. Post-merger Charter is now a Fortune 100 company.

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Patch management strategy

Vulnerability management and patch management are close relatives. In most companies, think of them as siblings who hate each other. That’s usually how it plays out. It doesn’t always have to be that way, but it takes some thought and strategy from both sides. Here are some ideas for patch management strategy.

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How safe is my computer from hackers?

On Monday, March 13 at approximately 10:30 AM CST, I will be appearing on KFUO Radio’s Faith and Family program to discuss home computer security with host Andy Bates. One of the questions he’s planning to ask: How can I know how secure my home computer is? Or, to put his question another way, how safe is my computer from hackers?

I’m going to use this space to elaborate ahead of time on some of the things we are going to talk about. We could talk for an hour on any of the questions he’s going to ask, and he gave me three questions and 25 minutes. This is my workaround.

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What can I do to improve the security of my digital information?

On Monday, March 13 at approximately 10:30 AM CST, I will be appearing on KFUO Radio’s Faith and Family program to discuss home computer security with host Andy Bates. One of the questions he’s planning to ask: “What can I do to improve the security of my digital information?”

This, fortunately, may be the easiest question to answer and the easiest step to implement.

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