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today's howtos
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RIPE ☛ Closing the IPv6 First-Packet Gap with GRAND
There is a subtle asymmetry in IPv6 Neighbour Discovery: a host knows how to reach its router before the router necessarily knows how to reach the host. GRAND fixes that asymmetry by making the host proactively advertise its address, and I implemented that mechanism in FreeBSD.
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Linuxize ☛ btop Command in Linux: Monitor System Resources
Monitor CPU, memory, disks, network traffic, and processes with btop. This guide covers installation, keyboard shortcuts, process actions, and configuration.
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OSTechNix ☛ Testing Your Website’s Global CDN Performance from the Command Line
Learn how to test CDN performance from the command line using curl and dig. Measure TTFB, DNS latency, cache hits vs misses, and HTTP/3 performance.