https://mrtomlinux.org/tags/raspberrypi/ Recent content in Raspberrypi on Linux Café Hugo en Wed, 28 Oct 2026 11:13:18 +0200 https://mrtomlinux.org/post/2026-10-28-fixing-the-2second-dns-lookup-lag-on-my-pi-by/ Wed, 28 Oct 2026 11:13:18 +0200 https://mrtomlinux.org/post/2026-10-28-fixing-the-2second-dns-lookup-lag-on-my-pi-by/ <h2 id="the-2second-dns-lookup-lag-on-a-pi--a-handson-fix">The 2‑second DNS lookup lag on a Pi – a hands‑on fix</h2> <p>I was running a Pi‑4‑based home‑lab that hosts a few services: a personal Git server, a small reverse‑proxy stack, and a few IoT sensors that ping the Pi every few seconds. Every time I pinged a domain that wasn’t in the local cache, I noticed a ~2 s pause before the first packet left the network interface. On a desktop that latency was negligible, but on the Pi it was a noticeable hiccup that made the sensor logs look a little jittery.</p>