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Packet Flow: Journey to Network & Cybersecurity Expertise
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Packet Flow: Journey to Network & Cybersecurity Expertise

Follow the challenges and insights of my journey to becoming a network and cybersecurity engineer, with tips, resources, and personal experiences.

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Tag: OSPF

Networking Concepts

Graph Theory With Blinking Lights: Why I Ordered Networks by Mark Newman

by teodulfo.espero

So I ordered this book from Amazon, Networks by Mark Newman, for $80. Yes, $80. For a book about networks. Not a switch. Not a cable tester. Not a tiny firewall appliance with “enterprise” printed on the box, the same way a microwave burrito calls itself cuisine. A book. Paper, ink, equations, diagrams, and the quiet threat that somewhere inside

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Careers

My Race for CCNA: Running on Coffee, Cables, and Chaos

by teodulfo.espero

I haven’t taken the CCNA yet — but I’ve already laced up my running shoes. The track is clear in front of me, painted with subnet masks, routing protocols, and the occasional cryptic Cisco exam question that looks like it was written during a power outage. This is the race I’m signing up for — the one where the finish

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