Tag: linux
All the articles with the tag "linux".
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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.
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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.
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Mastering xargs in Linux
xargs turns stdin into arguments — build complex pipelines, run parallel jobs, and handle filenames with spaces without breaking everything.
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FFmpeg: Advanced Video & Audio Manipulations
Advanced FFmpeg techniques — filter graphs, stream mapping, subtitle burning, speed adjustment, and batch processing scripts.
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Executing Commands with Asterisks in Docker
Shell globbing breaks inside docker exec because of how args are parsed — here's how to pass wildcards and asterisks correctly.
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FFmpeg: Comprehensive Audio Processing Techniques
FFmpeg audio processing — normalize levels, convert formats, mix tracks, extract audio from video, and apply filters from the command line.
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Mastering Vim: Essential Commands and Tips
vim survival guide — modes, motions, search and replace, macros, splits, and the config tweaks that make it actually enjoyable to use.
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Tmux for Streamlining Dev Workflow
tmux sessions, windows, and panes for developers — layouts, plugins, and the .tmux.conf that makes it feel like a proper IDE.
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Optimizing Ansible for Faster Playbook Execution
Speed up Ansible playbooks with pipelining, forks, fact caching, and async tasks — stop watching the spinning wheel on every play.
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Understanding and Optimizing Performance in Proxmox VE
Squeeze more out of Proxmox VE — CPU pinning, memory ballooning, IO threads, virtio drivers, and storage tuning for faster VMs.
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Advanced UFW Techniques: Enhancing Firewall Security
Go beyond basic UFW rules — rate limiting, geo-blocking, application profiles, logging, and before.rules tricks for serious firewall hardening.
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UFW Basics: Setting Up Your Linux Firewall
UFW makes iptables manageable — allow and deny rules, app profiles, default policies, and the 5-minute setup for any new Linux server.