Tag: linux

FFmpeg audio processing, normalize levels, convert formats, mix tracks, extract audio from video, and apply filters from the command line.

vim survival guide, modes, motions, search and replace, macros, splits, and the config tweaks that make it actually enjoyable to use.

Master tmux for dev work: sessions, windows, panes, layout scripting, hooks, and pane syncing, the commands that turn one terminal into many.

Speed up Ansible playbooks with pipelining, forks, fact caching, and async tasks, stop watching the spinning wheel on every play.

Squeeze more out of Proxmox VE, CPU pinning, memory ballooning, IO threads, virtio drivers, and storage tuning for faster VMs.

Go beyond basic UFW rules, rate limiting, geo-blocking, application profiles, logging, and before.rules tricks for serious firewall hardening.

UFW makes iptables manageable, allow and deny rules, app profiles, default policies, and the 5-minute setup for any new Linux server.

LVM lets you resize volumes, add disks, and take snapshots without repartitioning, PVs, VGs, and LVs explained with real commands.

Docker needs a daemon; Podman doesn't. Compare architecture, rootless support, Compose compatibility, and which one belongs in your workflow.

SSH tunnels forward ports over encrypted connections, local forwarding, remote forwarding, and dynamic SOCKS proxy explained.

socat wires TCP, UDP, Unix sockets, files, and serial ports together. Port forwarding, OpenSSL tunnels, traffic capture, this is netcat with superpowers.

Create, modify, and delete users and groups on Linux, useradd, usermod, groupadd, sudo access, and /etc/passwd explained.