This is a rather strange error message which you may see in Mac OS X, you’ll get the notification “Another device on the network is using your computer’s IP address” and then you’ll lose internet access with the dialog box telling you to try connecting again later. No thanks, we need internet access now! So … Read More

If you’re troubleshooting a Mac machine with some particularly odd issues that routine measures don’t seem to be resolving, it can be helpful to list what kernel extensions are activated, particularly third party kexts loaded in OS X. Determining what kernel extensions are loaded and running in Mac OS X is rather easy, and using … Read More

You can find out what the manufacturer, model number, and type of LCD panel you have in any of your Macs, including the iMac, MacBook Air, MacBook, or any model MacBook Pro by using a fairly complex looking terminal command. If you’re unfamiliar with the command line, just copy and paste the line below into … Read More

Did you accidentally ignore a Software Update in MacOS or Mac OS X and now you need to install it on a Mac? Perhaps you were putting off a specific update for one reason or another, and now it’s time to install that ignored or hidden update again onto Mac OS X. Fortunately, getting the … Read More

If you use FileVault and QuickLook on a Mac you may want to know that the combination of the two may leak some sensitive information from encrypted volumes. Reader Jack R. sent in the following tip, explaining the situation further: When FileVault and QuickLook are used concurrently, information about what files are stored on the … Read More

Have you ever tried to run a command line tool to discover that you don’t have the necessary privileges to use it? Or perhaps the command itself actually requires root access to run at all? You’ll typically experience this with a ‘permission denied’ type of error message in terminal. Rather then type out the entire … Read More

Need to access the current Finder directory immediately within the Terminal? While newer Mac OS X versions have an option to enable “New Terminal at Folder” in Services, prior releases do not, so instead you can get cdto, it’s one of those must-have apps for anyone who’s constantly switching between the command line and the … Read More

You can resize, rotate, or flip any image file via the Mac’s Terminal using the powerful command line sips tool. Manipulating images with sips is practically instantaneous, and if you need to quickly resize, rotate, or flip an image file and want to stay within the command line, it can definitely beat firing up a … Read More

When you launch a new Terminal window or tab in Mac OS X (and most linux distributions) you’ll be greeted with a little message, either some “last login” details, or maybe even a message from the admin from /etc/motd. The last login details are default in a new Mac OS X terminal session, whereas the … Read More

You can immediately launch any file into its associated application from Quick Look preview mode by holding down the command key and then pressing the down arrow key, so if you’re looking at a PSD file it will launch in Photoshop, a JPG into Preview, MP3 into iTunes, etc, directly from Quick Look! Thank you … Read More

Spotlight is amazing at finding files buried deep within your Mac, but what if you found the file you wanted, and you don’t know what folder it’s contained within on the Mac, or if it’s buried deep somewhere in Mac OS X? The answer is as easy as a keystroke, because with a simple key … Read More

Brian asks: “I need to add line numbers to a text file. I don’t mean line numbers in the text editor, I mean adding a number next to each item inside a text file. Is this possible to automate or do I have to manually edit the file typing 1, 2, 3 and going insane?” … Read More

If you’re like me, you store a lot of information on your iPhone that you want to keep private. Accordingly, you might be interested to know that, by default, the backups made from an iOS device to iTunes are not encrypted, and can be dug through rather freely if someone was interested in doing so. … Read More

If you’re a writer, developer, designer, musician, anyone that needs to have complete concentration to create freely, this app just might be your saving grace. Freedom forces you to pull away from the ubiquitous distractions of the online world by disabling your Mac’s network interface for a set amount of time, up to 8 hours. … Read More

Property List files, or more commonly known as plist files, are basically Mac application specific preference files. They contain information and settings for various applications and are usually in the easily identifiable format of com.developer.Application.plist and located within the /Library/Preferences/ directories at the system and user level. If you simply want to view a plist … Read More

The Mac OS X Terminal can become slow to launch over time, but there’s an easy solution to speed it up again. By deleting the Apple System Logs, you can shave the lag in opening and launching new Terminal windows/tabs dramatically, in my case from about a three second delay to instantaneous! Here’s how to … Read More

I’ve long been looking for a good MySQL manager for Mac OS X since I’m not a big fan of phpMyAdmin and the other tools out there. Yes there’s always the command line too, but sometimes it’s nice to have a GUI for such tasks. Then I came across SequelPro recently and I think it … Read More

“I just got a brand new MacBook, what should I do with my old Mac?” This is a very common question I get, and I typically give one of four answers depending on who’s asking the question. I’ll go through each choice and hopefully they’ll give you some ideas: 1) Setup the old Mac next … Read More