Category: Practical Labs
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Surfshark VPN Review for Small Businesses & Traveling Executives (2026)
Is Surfshark the right VPN for small business owners and executives who work on public airport and hotel Wi-Fi? We review its protection, ease of use for mobile teams, and real cost.
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How DNS Actually Works: A Live Ping & Nslookup Demo
Type a domain into your browser and it just works — but your computer has no idea where google.com actually lives until DNS tells it. This quick lab demo shows that translation happening live, using two everyday command-line tools: ping and nslookup. The demo Running ping google.com shows replies coming back from an IP address…