https://1shubham7.blog/tags/linux/ Recent content in Linux on Shubham Singh Hugo -- gohugo.io en-us https://1shubham7.blog/ebpf/ Mon, 01 Jan 0001 00:00:00 +0000 https://1shubham7.blog/ebpf/ What eBPF actually is, why the verifier means it can't crash your kernel, hooks and maps in plain words, two runnable examples with bpftrace and libbpf, and how Cilium turns all of it into a CNI. https://1shubham7.blog/linux-concepts/ Mon, 01 Jan 0001 00:00:00 +0000 https://1shubham7.blog/linux-concepts/ Processes and signals, namespaces and cgroups, memory, storage, networking, and identity: the mechanism behind each, the two or three ways it breaks under a pod, and the one check that confirms it. Written from on-call across 100+ production Kubernetes clusters. https://1shubham7.blog/gnome-extension/ Mon, 01 Jan 0001 00:00:00 +0000 https://1shubham7.blog/gnome-extension/ A few GNOME extensions that genuinely improved my Ubuntu desktop experience, from useful clipboard history to ridiculous window-burning animations. https://1shubham7.blog/grafana-dashboards/ Mon, 01 Jan 0001 00:00:00 +0000 https://1shubham7.blog/grafana-dashboards/ Two Grafana dashboards, same node, same timestamp - one shows 62 GB used, other shows 10 GB. Both are correct. Here's the full story of how Linux memory actually works and which number you should actually be watching. https://1shubham7.blog/terminator/ Mon, 01 Jan 0001 00:00:00 +0000 https://1shubham7.blog/terminator/ A complete cheat sheet for the Terminator terminal emulator covering all keyboard shortcuts, broadcast mode, layouts, plugins and launch options.