tutorial

Over on Lifeisaprayer.com, I posted a detailed tutorial/guide on how to replace the hard drive inside a 24" Intel iMac with an aluminum enclosure (the process is similar on other aluminum iMacs). It's a rather intricate process, so in addition to a few illustrations, I posted a video of the process on YouTube (it's embedded over on Lifeisaprayer.com as well!).

Intel iMac Teardown and Hard Drive Replacement - DIY/Guide

Have fun repairing your iMac! (Please be sure to leave comments on the Lifeisaprayer.com post, and not here).

[Update: Back when this was written, very nice password managers like 1Password and LastPass didn't exist or were not very capable of managing passwords as well as they are today—please ignore the advice below and use a password manager to generate very long, random passwords, and use the password manager instead of memorizing anything.]

Every month or so, another scary story about a huge security compromise (a.k.a. a hack) surfaces on the Internet, and this month is no exception. Earlier this month, the whole Twitter corporate heirarchy had a lot to worry about, as a hacker (that's kind of a misnomer... hackers are usually nothing more than persistent, patient and sly computer users) accessed many Twitter employees' email, iTunes, Google, etc. accounts, all because of the fact that one of the employees (probably not the only one, though) left an open door via a few small missteps, security-wise.

The hacker, after gathering tons of personal information gleaned from all over the web, was able to recover a user's Gmail password by guessing a few personal questions Gmail asks on the password recovery form (i.e. "Who was your favorite actor?," "What is your maiden name?," etc.). Then the hacker simply searched through the user's emails for something like "username password," because he knew that a lot of websites (like the Joomla! forums, some gaming sites, online stores, etc.) simply send an email upon a new user registration that contains the person's username and password. Once the hacker got ahold of a few more passwords this way, he was on his way to 'hacking' all the user's accounts... because like most people online, the user had only one or maybe two passwords he used for everything.

...but using the same password for multiple sites/services isn't necessarily a bad thing. Not if you follow these steps:

Something you don't think about every day, but something that could save you enough change to get a Big Gulp every now and then: You can take a few simple steps to drastically reduce the amount of power consumed by your computer. Especially when you're doing many things at the same time with multiple hard drives and the screen turned on at full brightness!

This article is written specifically for the 24" iMac (late 2008), but applies to pretty much any Mac that uses electricity (read: ALL of them). By following the steps in this article, you can save a bit of power, which translates into saving a small amount of change each month. And who wouldn't like a few extra nickels in this economy?

The Discovery

I recently purchased the APC Back-UPS NS 1250, and one of the most amazing features of the UPS is the ability to see how many watts are being actively consumed by a device plugged into it.

I found the results of my testing to be quite interesting. When I had the iMac running with the screen at full brightness, the computer was using the energy equivalence of an old 100 Watt tungsten (i.e. 'energy sucker') light bulb! I don't typically run the screen this bright, though, because the lighting in my computer room is typically subdued. So I turned the brightness down all the way (a comfortable level for my vision), and looked again. This time, the computer was using about 75 Watts. NICE!

(Big bright chart for visual learners).

A blast from the past! The following article is from one of my first websites, ca. 1999, and was updated a couple times throughout it's history. I am re-posting it here because my old website will be deprecated quite soon.

A few notes before we begin: Since the writing of this article, Time Machine came into being (along with Mac OS X 10.5), and has brought about a revolution in the way I maintain backups: my schema now is to have a local daily Time Machine backup to my external hard drive (I recommend a simple 1-2 TB External USB hard drive), then do a once-a-month DVD backup (stored offsite) of my most important files. For most home/small business users, this should be adequate.

Another revolution in data backup is the idea of backing up 'to the cloud' - with the prevalence of broadband Internet access, and the plethora of options for online storage, many companies offer solutions to online backup that were only dreamt of back in the late nineties. Some solutions I recommend: MobileMe (what I use, but not for everyone), Mozy, BackJack, and JungleDisk. (No, those aren't referral links—would I try pulling that on you?).

Backup Strategies for OS X

A question often asked on the Apple Discussion boards and by my fellow Mac users is: "How/when should I backup my Mac, and what is the best/quickest and most reliable way to do it." This is a complicated question, as there are many different ways one can go about backing up OSX.

There are three basic ways that I would like to cover in this article:

1. Using Disk Utility to quickly and easily make a complete, bootable backup to an external drive;
2. Using Carbon Copy Cloner to either (a) do the same thing as Disk Utility, or (b) to clone a certain folder or group of folders (another program that does a great job is SuperDuper!);
3. Drag-and-drop copy files and folders for a quick backup of important files.

Whenever you're designing a website, one of your primary goals, besides communicating the mission of the organization for whom the website is being made, should be to make the website accessible to all visitors, no matter what kind of computer or browser they have, and no matter what kind of disabilities they have (whether it be blindness, deafness, or other problems).

Luckily for you, there's a free and easy-to-use tool on the web that lets you check how well your website conforms to coding standards:

The W3C generously provides this service to further their mission of having an open, accessible and free web. The tool is dead simple to use: just type in your website's URL, and click Validate. Errors will then show up, and you can go back to your source code and fix the little mistakes you've made. But there's a lot more about Validation that needs to be said!

Mac OS X's Mail program has a very handy feature called 'Previous Recipients' that does a very nice thing: It saves a list of every person and email address you've ever sent an email to. Then, it automatically fills in that person's email address when you type it or the person's name in the 'To' field in a new message. This is usually a good thing, because it saves you time (you don't have to look up the address again!).

However, there are times when you want to send an email to a specific email address for that person, and the email address that Mail automatically inserts is—gasp!—the wrong address. For example, I want to send an email to my friend John, so I type in "John" in the To field. Mail fills in the address I usually send emails to: [email protected]. But I want to send the mail to John's alternate address, [email protected]... and I want to start sending emails to that address rather than to his first email address all the time. There are two easy solutions to this problem:

Besides business applications, one of the main reasons to run a copy of Windows in a Virtual Machine (using either VMWare Fusion or Parallels Desktop) on your Mac is to test software and websites. I recently ran into a problem, though, when I wanted to test some PHP-based websites that were running on my Mac under MAMP (stands for Mac Apache, MySQL and PHP).

The problem is this: Even if you have the Windows set up with bridged networking, you will not be able to see the websites running on your Mac if you type in the Mac's IP address. This problem can be solved pretty easily, though, if you simply tell Windows exactly where Internet Explorer needs to look, by editing the 'hosts' file (which tells Windows where to look for specific IP addresses).

Ever wonder why your pictures of little items like statues, money, a speaker set, a glass of water, or pretty much anything else in the world that doesn't move often look so washed out and flat? I'm betting that the reason is that you are setting your camera to 'nuke' mode (i.e. blast everything with light from the flash).

Well, I have a quick, and most likely free (if you own a tripod) solution to this problem. And it's pretty darn easy to implement. Here's how you do it:

Having a screenshot of something you see on your Mac can sometimes be priceless, especially if something happens that you want to show someone else, or if you want to email someone a picture of how to do something on their Macs. Fortunately, Mac OS X has a ton of options for taking pictures of the screen, or even individual elements of the screen. We'll get into the basics, and we'll also show you some advanced techniques that many 'power-users' may not know of (yet).

Quite often, I am asked one of two related questions: 1) "Why can't I delete this pesky file? My Mac says the file is locked, and I can't delete it unless I do something special!" or 2) "Gaa! I can't copy <insert name here> to my flash drive or another hard drive because it's locked—help!"

Well, I will answer those questions, and much more, after the break.