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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

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Roll-your-own Protection From A New Malware Called XSLCmd

A nasty piece of malware on OS X is XSLCmd.  Using a neat trick, you can get alerted if your computer gets infected.  This malware can open a reverse shell, list and transfer files, and install additional malware.  Definitely not something you want.  The problem with some malware–especially zero-day attacks–is that your anti-virus program might not detect […]

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How To Tell If Someone Is Spying On Your Computer Using GeekTool

[UPDATE]: An even better solution is the ScreenSharingMonitor, which provides a “native” feel thanks to the Notification Center messages.

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Pi-hole: A Raspberry Pi Ad-Blocker with DNS Caching (Ultra-fast)

This version of the Pi-hole is outdated Click the image below to read about the new version.

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Raspberry Pi and Routing: Turning a Pi into A Router

The Raspberry Pi can be used as a router–great if you need a pocket-sized device to share an Internet connection.  It can also be used in conjunction with a cantenna.

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Raspberry Pi + Cantenna: Ultimate 2.4GHz Wardriving and Long-range WiFi Access

Want to turn your Raspberry Pi into a portable antenna / wireless router that can be used to pick up WiFi signals from great distances?  I did.  I will walkthrough how to make the 2.4GHz cantenna using some cheap components and then setup the Pi as a router so you could search for WiFi access […]

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OS X: Roll-your-own Malware Detection

[UPDATE 2014-10-20]: This tricks seems to cause high CPU usage in Yosemite, try using launchd instead. [UPDATE 2014-10-02]: defend yourself from becoming a zombie courtesy of Mac.BackDoor.iWorm [UPDATE]: Use this trick to fend off the new malware XLSCmd Macs are not immune to malware.  Authors of malicious software often try to get a LaunchDaemon or LaunchAgent […]

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Wi-Fi Cantenna (2.4GHz): How-to Make a Long-range Wi-Fi Antenna

Create a cantenna to drastically extend your Wi-Fi signal!  Works great with a router that has external atennas, like the old-school classic WRT54G.