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DHCPv6 Prefix Delegation Explained: How a Router Gets Its Own IPv6 Prefix

DHCPv6 Prefix Delegation Explained: How a Router Gets Its Own IPv6 Prefix

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4 min read
When Latency Becomes A Training Data Defect

When Latency Becomes A Training Data Defect

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4 min read
IPv6 for Web Servers: Dual-Stack nginx and Apache, and How to Test It

IPv6 for Web Servers: Dual-Stack nginx and Apache, and How to Test It

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4 min read
Dual-Stack Hygiene: Happy Eyeballs, MTU and Path MTU Discovery, and the ICMPv6 You Must Not Filter

Dual-Stack Hygiene: Happy Eyeballs, MTU and Path MTU Discovery, and the ICMPv6 You Must Not Filter

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4 min read
The Quiet Infrastructure That Routes Every Name You Have Ever Typed

The Quiet Infrastructure That Routes Every Name You Have Ever Typed

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20 min read
Reading a Looking Glass and BGP Route Data to Debug an Unreachable Prefix

Reading a Looking Glass and BGP Route Data to Debug an Unreachable Prefix

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4 min read
🗂️ Mapped Drive Showing a Red X? Test the Path Before You Remap

🗂️ Mapped Drive Showing a Red X? Test the Path Before You Remap

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2 min read
Unix Socket vs TCP Loopback Between Containers in One Kubernetes Pod

Unix Socket vs TCP Loopback Between Containers in One Kubernetes Pod

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13 min read
VPN Kill Switch Test From a Browser Tab: What Polling Can and Can't Prove

VPN Kill Switch Test From a Browser Tab: What Polling Can and Can't Prove

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6 min read
How DNS Works: A Beginner-Friendly Guide to the Domain Name System

How DNS Works: A Beginner-Friendly Guide to the Domain Name System

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6 min read
WireGuard Performance Tuning: Maximum VPN Throughput

WireGuard Performance Tuning: Maximum VPN Throughput

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3 min read
UDP Datagram Size Limits and Fragmentation: When Packets Break

UDP Datagram Size Limits and Fragmentation: When Packets Break

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12 min read
CVE-2026-101982 and CVE-2026-101990: Two Route-Advertisement Bugs That End in Root on Junos

CVE-2026-101982 and CVE-2026-101990: Two Route-Advertisement Bugs That End in Root on Junos

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4 min read
Request timeouts: how long to wait, and when to retry

Request timeouts: how long to wait, and when to retry

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4 min read
CVE-2026-33789 and CVE-2026-33796: How BGP Monitoring Protocol Became an Attack Surface on Junos

CVE-2026-33789 and CVE-2026-33796: How BGP Monitoring Protocol Became an Attack Surface on Junos

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4 min read
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