Tag: linux

Understanding and Optimizing Docker’s daemon.json File

daemon.json controls how the Docker daemon behaves — logging drivers, storage drivers, registry mirrors, and the options worth tuning.

Disabling Discord’s Activity Tracking

Discord tracks what you're running. Here's how to turn off activity status, game detection, and telemetry so your app habits stay private.

Optimize Ubuntu Logs: btmp Log Rotation

btmp logs failed logins and grows forever on internet-facing servers. Set up logrotate to keep it under control before your disk fills up.

Navigating the Storm: Analysis of Intel’s 13th and 14th Gen CPU Instability Issues

Intel 13th and 14th gen CPUs have a documented instability problem. Here's what's happening, who's affected, and what Intel is doing about it.

Finding the PID of a Process Using a Specific Port in Linux

Something's squatting on port 8080 and you need to know what. ss, lsof, and fuser one-liners to find and kill the culprit fast.

Understanding Grep: A Comprehensive Guide

grep is more powerful than you think — regex patterns, context flags, recursive search, and piping tricks that save hours of log digging.

Essential Linux Commands for Daily Use

The Linux commands every sysadmin reaches for daily — file ops, process management, networking, and text manipulation you can't live without.

Copying Files Between Docker Containers and Host Machines

Use docker cp to move files between running containers and your host machine — no volumes needed for one-off file transfers.

Understanding the regreSSHion Vulnerability in OpenSSH

regreSSHion (CVE-2024-6387) is a remote code execution bug in OpenSSH — what it is, which versions are affected, and how to patch fast.

Multiple Actions with a Single docker exec Call

Run multiple commands in one docker exec call using sh -c — pipe commands, chain with && or ;, and avoid repeated container roundtrips.

Mastering xargs in Linux

xargs turns stdin into arguments — build complex pipelines, run parallel jobs, and handle filenames with spaces without breaking everything.

FFmpeg: Advanced Video & Audio Manipulations

Advanced FFmpeg techniques — filter graphs, stream mapping, subtitle burning, speed adjustment, and batch processing scripts.