Guide Series
Linux & Scripting
Linux fundamentals, server administration, Bash scripting, and automation for network engineers.
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Python for Networks
Python programming from the ground up, focused on network automation, APIs, and tooling.
Start Learning →AI & Automation
Practical AI guides for technical professionals — LLMs, APIs, self-hosting, and building AI-powered tools.
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Fortinet SDWAN
Comprehensive guides from NSE4 through NSE7. Configuration, design, and real-world SDWAN deployment with FortiGate.
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Cisco SDWAN
Cisco Catalyst SDWAN (Viptela) architecture, the ENSDWI/SDWSCS exam-blueprint study series, and enterprise routing and switching.
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Arista / VeloCloud SDWAN
Arista (formerly VMware) VeloCloud — orchestrator, edges, gateways, business policy, and real deployment experience.
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Palo Alto Prisma SDWAN
CloudGenix lineage, ION and Strata Cloud Manager, app-defined path selection, and Prisma Access/CloudBlades security.
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Juniper SDWAN
Mist cloud management and Session Smart Routing (SSR, ex-128 Technology) — Juniper's SDWAN platform and field notes.
Start Learning →Lab Environments
The lab environment landscape — hypervisors, network emulation platforms, vendor-official tools, container-native labs, and cloud-hosted options, with deep dives to follow.
Start Learning →Personal & Off-Topic
Beyond networking — study guides for non-technical certifications like the RYA Marine Radio (SRC), and hobby deep dives.
Start Learning →Latest from the Blog
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One Fabric, One Agent: Where Security Fabric Ends and FortiSASE Begins
Security Fabric is the automation and visibility layer tying Fortinet devices together. FortiSASE is a cloud-delivered PoP that speaks the same fabric language. Neither is a bolt-on to the other, and the FortiClient agent is the thing that makes the seam disappear.
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Same Job, Different Shell Part 1: Reachability and Continuous Monitoring
ping and Test-Connection do the same job, but which PowerShell version you're on changes both the syntax and, in one tested case, what the tool actually reports. Part 1 of a series pairing Windows and Linux networking commands, with a real PS 5.1 vs 7.6 discrepancy found along the way.
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Same Job, Different Shell Part 10: Packet Capture
tcpdump against pktmon: when rule tables and connection state stop answering the question, packet capture does. A real captured TCP handshake and a real captured DNS query/response pair, on both platforms.