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Quick Response (QR) Codes Made Simple
QR Codes Made Simple I use Quick Response codes because they remove typing errors. Instead, someone scans a square and lands on a page fast. Also, they work great on flyers, business cards, and signs. What a QR Code Really Is A Quick Response code stores data in tiny...
How to Use nslookup at a Windows or Linux Prompt
Ever wonder how the Internet really finds a website or delivers email? In this practical guide, I explain how to use the nslookup command on Windows and Linux to uncover DNS answers, troubleshoot problems, and understand what’s happening behind the scenes.