Tag: #linux
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 70 posts
eBPF Complete Guide — A Tiny VM Inside the Kernel: Verifier, JIT, CO-RE, Maps, Attach Points, XDP, LSM, sched_ext (2025)
Everything about eBPF — from cBPF in 1992 to eBPF in 2014 to schedext in 2024. The 11-register virtual machine ISA, the verifier's static analysis, JIT compilation, BTF and CO-RE, 17+ BPF map types, 200+ helper functions
2026-04-15 · 31 min read #linux#kernel#ebpf#bpf#xdpLinux Performance Engineering Complete Guide 2025: Profiling, System Tuning, eBPF, Bottleneck Analysis
Everything about Linux performance! USE methodology (Utilization/Saturation/Errors), perf/bpftrace/eBPF, Flame Graphs, CPU/memory/disk/network bottleneck analysis, sysctl tuning, cgroups v2, I/O schedulers, NUMA, kernel
2026-04-14 · 21 min read #linux#performance#profiling#ebpf#perfThe Complete Guide to Networking & Linux Internals — TCP/IP, DNS, iptables, systemd
TCP/IP 4-layer model, DNS resolution, HTTP/HTTPS, Linux network stack, iptables/nftables, systemd, and process management — essential knowledge for infrastructure engineers.
2026-04-12 · 18 min read #networking#linux#tcp-ip#dns#iptablesOS Core Concepts Complete Guide: Everything About Operating Systems for Developer Interviews
A complete guide to OS core concepts frequently asked in developer interviews, with practical code examples. Process vs Thread, Virtual Memory and Page Faults, CPU Scheduling (CFS), Synchronization (Mutex/Semaphore/Spinl
2026-03-23 · 28 min read #operating-system#process#thread#memory#virtual-memoryMastering Linux Command Line: 100 Essential Commands Every Developer Must Know
The complete Linux command line guide for developers! 100 essential commands for file/process/network management, Bash scripting, grep/awk/sed text processing, SSH tunneling, tmux multiplexing, system monitoring, and rea
2026-03-23 · 27 min read #linux#command-line#bash#shell#devopsKVM, cgroup, namespace, tap, netlink: The Kernel Technologies Behind KubeVirt
Describes the roles of Linux kernel technologies -- KVM, cgroup, namespace, TAP, netlink, and VFIO -- that enable KubeVirt to implement VMs on top of Pods.
2026-03-20 · 5 min read #architecture#kubevirt#linux#kvm#cgroups[Linux] Complete Guide to cgroups: The Core of Container Resource Control
A comprehensive guide to Linux cgroups (Control Groups): concepts, v1 vs v2 differences, CPU/memory/IO/PID limiting, usage in Docker and Kubernetes, and real-world troubleshooting.
2026-03-20 · 22 min read #linux#cgroups#container#kubernetes#devopsFreeBSD Jails, ZFS, and Practical Server Operations
A practical guide to running FreeBSD in production, covering why teams still choose it, how jails differ from containers, how ZFS changes operations, and which runbooks matter most for long-lived servers.
2026-03-17 · 4 min read #freebsd#zfs#jails#server-operations#linuxOperating Systems: A Complete Guide — From Processes & Memory to AI Workload Optimization
A comprehensive guide for AI engineers covering process scheduling, virtual memory, file systems, iouring, NUMA-aware memory allocation, and GPU resource isolation with cgroups.
2026-03-17 · 12 min read #operating-systems#linux#memory-management#scheduling#iouringSSH Escape Sequences in Practice: Kill Hung Sessions, Add Tunnels Live, and Recover Remote Ops
Based on a GeekNews trend signal and grounded in the official OpenSSH manuals, this guide covers hung-session recovery, live port forwarding, keepalives, and multiplexing patterns for real remote operations.
2026-03-16 · 8 min read #linux#ssh#openssh#devops#remote-opssystemd Service Management, Unit File Configuration, and Troubleshooting
A practical guide to systemd service management, unit file configuration, and troubleshooting techniques for Linux system administrators.
2026-03-14 · 18 min read #systemd#linux#service-management#troubleshooting#devopsFrom Shell Basics to Advanced Operations: A Practical Shell Guide for Engineers
From Bash/Zsh basic syntax to pipelines, process substitution, signal handling, and performance optimization -- this guide covers essential Shell techniques that every working engineer must know, with practical code exam
2026-03-07 · 12 min read #linux#shell#bash#zsh#scriptingLinux Kernel Parameter Tuning Guide: sysctl + Boot Params, Safe Changes and Rollback
This guide covers Linux kernel tuning strategies using sysctl runtime parameters and boot parameters. It provides recommended values for networking, memory, filesystem, and security categories, along with pre-change back
2026-03-07 · 11 min read #linux#kernel#sysctl#performance#tuningComparing Red Hat vs Ubuntu Server Operations: An Enterprise Decision Guide
RHEL/Rocky Linux and Ubuntu Server are compared from an enterprise operation perspective, including package management, security patches, licensing, technical support, and container compatibility, and present selection c
2026-03-07 · 12 min read #linux#redhat#rhel#ubuntu#centosComplete Guide to Building a Linux GPU Server for Deep Learning
A step-by-step guide to building a Linux GPU server for deep learning development, covering everything from NVIDIA driver installation to Docker GPU environments, based on official NVIDIA documentation.
2026-03-01 · 20 min read #linux#gpu#cuda#nvidia-driver#deep-learningThe Joy of Never Touching the Mouse: 5 Key Strategies to Maximize Terminal Productivity
Seamless navigation with vim-tmux-navigator, intuitive panel splitting, ultra-fast feedback loops with Vimux, system clipboard synchronization, and Dotfiles management — a comprehensive guide to 5 key strategies for maxi
2026-03-01 · 38 min read #vim#tmux#terminal#productivity#neovimThe Complete Tmux Command Guide: Every Command to 10x Your Productivity with a Terminal Multiplexer
From Tmux session/window/pane concepts to key bindings, copy mode, plugins, custom configuration (.tmux.conf), pair programming, and SSH remote work — a comprehensive guide to every Tmux command with practical examples.
2026-03-01 · 32 min read #tmux#terminal#linux#multiplexer#productivityThe Complete Vim Command Guide: Master Every Command of the Ultimate Text Editor
From Vim modal editing philosophy to navigation, editing, Visual Mode, text objects, command mode, macros, .vimrc configuration, and plugins — a comprehensive guide to every Vim command with practical examples.
2026-03-01 · 24 min read #vim#neovim#editor#linux#terminalInstall Nvidia driver on ubuntu22.04
Install Nvidia driver on ubuntu22.04
2024-11-29 · 2 min read #linux#nvidia-driverHow to Use Bash Shell Aliases
How to use Bash shell aliases
2024-01-15 · 1 min read #linux