Categories
Tips and Tricks Uncategorized

Find Your Windows Product Key Without Any Software

One thing I have always found frustrating about buying a PC with windows re-installed (among many things) is you don’t always have easy access to the product code.  Sometimes it is posted on a sticker, but often it is not.  How To Geek shows how to get the product code using a simple script.

Categories
Tips and Tricks Uncategorized

Customize The OS X Yosemite Login Screen

Give the OS X Yosemite login window a personalized look using your own image.  This is a simple trick to do.  Just save your desired image as: /Library/Caches/com.apple.desktop.admin.png Then, just log out to apply the change.  You should immediately see your new image.  If you don’t make sure you put it in the correct Library […]

Categories
Tips and Tricks Uncategorized

Freak Out Your Friends By Changing The “Ready” Message On HP Printers

How The Trick Works You create a file or enter some Terminal commands, which get sent to the printer.  Instead of printing out what you typed, the printer recognizes that the text is actually a set of instructions, known as the Printer Job Language (PJL), which are then carried out by the printer.  In this case, we tell […]

Categories
System Administration Uncategorized

Scripting Pearson’s TestNav on Windows Using Python

Getting Pearson’s Web-based TestNav to work on OS X was challenging enough, but getting it to work on Windows is also difficult.  Fortunately, Windows can run Python–even though it isn’t installed by default like OS X.  And Python is great for scripting and automating mundane tasks.  Pair that with some Group Policy Objects (GPOs), and […]

Categories
Raspberry Pi Uncategorized

Attempting to Block Hulu Plus Video Ads Using A Raspberry Pi

[UPDATE 2015-03-28] I have some more information about blocking video ads.  I just need to make some time to write it up… The keyword here is attempting.  What is strange is that I actually had this working at one point.  The Hulu video ads would be completely skipped (not just 30-90 seconds of silence).  Unfortunately, […]

Categories
System Administration Uncategorized

Suppress Apple Update Notifications In Mavericks Without Disabling Notification Center

[UPDATE]: Yosemite support has been added. I can’t guarantee results, but this has seemed to work for me.  The following commands disable the Apple App Store notifications that appear in OS X: NCutil.py –remove com.apple.maspushagent NCutil.py –remove _SYSTEM_CENTER_:com.apple.storeagent

Categories
System Administration Uncategorized

Scripting Pearson’s TestNav: Safari and Java Exception Lists

[UPDATE 2015-05-13]: Pearson is getting DDoS’d again. Pearson experienced intermittent issues with PearsonAccess and TestNav beginning at 7:13 a.m. this morning. These issues continue to occur. Pearson has confirmed that a Distributed Denial-of-Service (DDoS) attack to Pearson?s firewall is causing degraded performance issues.  Pearson is actively monitoring the issue and working to resolve.

Categories
System Administration Uncategorized

OS X’s Native 5-finger, 5-minute System Diagnosis

Quickly gather a ton of system information on any Mac with a five-key keyboard shortcut! Control-Option-Command-Shift-Period After triggering the keyboard shortcut, it may look like nothing happened (on Yosemite, the screen briefly flashes white), but if you open up /var/tmp , you will see a sysdiagnose folder (it won’t actually finish until the folder is transformed […]

Categories
Tips and Tricks Uncategorized

Roll-your-own LastPass Premium

Use your LastPass usernames and passwords in Safari on your iOS device without paying for a LastPass Premium subscription.  Using a bit of scripting, you can roll-your-own Last Pass freemium without paying a dime! That said, it is far from perfect (see caveats below), but it is a great way to have access to your LastPass passwords on iOS without […]

Categories
Raspberry Pi Uncategorized

Pi-hole: Raspberry Pi Ad-Blocker [Advanced Setup]

Roll-your-own Pi-hole Ad-blocker! Automated Install Run this command only on a clean install of the Raspberry Pi running Raspbian. curl -s “https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/automated%20install/basic-install.sh” | bash