Internet routing believes whatever it is told, which is why prefixes get hijacked. A practical guide to the cryptographic fix: how RPKI and Route Origin Validation work, the router configs that enforce them, the path-security gap that BGP roles and ASPA are racing to close, and the honest 2026 adoption reality.
Bgp
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BGP Hijacks and RPKI: From Origin Validation to Path Security -
DDoS Mitigation in 2026 A multi-line description of two to three lines: how modern providers absorb hundreds of Gbps of attack traffic — the attack taxonomy, anycast and scrubbing-center architecture, L7 defenses, and the honest cost of protection.
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From ARPANET to BGP: Why the Internet Trusts Everyone The internet's routing system still runs on a trust model inherited from a 1969 research project with four nodes. This is the history of that assumption: ARPANET, EGP, the NSFNET handoff, three napkins in Austin, the great hijacks, and the decades-long effort to retrofit authentication onto a running planet.
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Undersea Cables: The Internet's Physical Layer The internet's intercontinental backbone is about 1.5 million kilometers of garden-hose-thick fiber on the seabed — how it's built, powered at 15 kV from shore, broken 200 times a year, repaired by grapnel, and increasingly owned by hyperscalers.
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Anycast Explained: One IP Address, Served From Everywhere A deep technical look at anycast routing — how the same IP prefix is announced from dozens of BGP locations simultaneously, why the internet's most critical infrastructure depends on it, and the real-world trade-offs operators face.
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Containerlab: Network Labs in Containers Containerlab brings infrastructure-as-code discipline to network emulation — declarative YAML topology files, container-native NOSes, and CI-ready teardown cycles that make GNS3 feel like a different era.
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FRRouting in Production: The Linux Router That Replaces Cisco for Many Use Cases FRRouting turns commodity Linux into a serious router — the stack behind Cumulus, SONiC, and Cilium's BGP mode. How to run BGP and OSPF in production, and where FRR is a genuine alternative to Cisco and Juniper.
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Proxmox SDN: Software Defined Networking A deep dive into Proxmox VE's Software Defined Networking: zones, VNets, VXLANs, EVPN with BGP peering, multi-tenant overlay networks, and building isolated network segments across a Proxmox cluster.
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BGP for Engineers: How the Internet Routes Itself A practical guide to Border Gateway Protocol — how eBGP and iBGP work, route selection, path attributes, and running BGP in the datacenter with FRRouting.