5 posts
macos Two Mac minis headed for Apple MLX distributed inference both froze after SSH login. The hunt crossed an mDNSResponder reverse-DNS stall, a WiFi wake-latency bug with a fix that only half-worked, a Thunderbolt/RDMA detour — and ended with two forgotten background inference servers squatting on the e
kubernetes A k0s worker node's pods were stuck ContainerCreating and its CPU 'spiked too soon'. The real culprits weren't load — they were WiFi power-save (10% packet loss) starving the Calico CNI and a powersave governor pinning all cores at 800MHz. Full diagnosis, the fix script, and before/after evidence.
kubernetes Working remotely from a home lab usually means one of three bad options:
networking A plain-language walkthrough of how DNS works — from query to resolution.
linux A clear breakdown of the most important DNS record types and when to use each one.