ITFROMZERO – Share tobe shared!

Is Linux Fragmented? How to Check and Optimize EXT4 and XFS Drives to Boost I/O Speed

By admin March 31, 2026

The idea that Linux doesn't fragment is a myth. Learn how to use e4defrag and xfs_fsr to check and optimize drives, effectively boosting server I/O performance.

Python

Packaging and Publishing Python Libraries to PyPI: Goodbye setup.py, Hello Poetry

By admin March 31, 2026

Forget the headaches of setup.py and requirements.txt. This guide helps you master Poetry to package and publish Python libraries to PyPI professionally, quickly, and error-free.

Development

Stop Silly Code Errors with Pre-commit Hooks, ESLint, and Prettier

By admin March 31, 2026

Don't let typos crash your system. A guide to setting up Husky, ESLint, and Prettier to automate code quality checks before every commit.

Virtualization

Configuring SR-IOV on Linux: How to Unlock Maximum Bandwidth for KVM Virtual Machines

By admin March 31, 2026

Is your KVM virtual machine experiencing slow network speeds? Discover how to configure SR-IOV to maximize throughput, reduce host CPU load, and eliminate latency.

Network

Turn Linux into a Wireless Access Point: Build Your Own “Pro” Wi-Fi Router with hostapd and dnsmasq

By admin March 31, 2026

A detailed guide to turning a Linux machine into a Wireless Access Point using hostapd and dnsmasq, with real-world troubleshooting experience for packet loss and network performance optimization.

Database

Database Management on AWS RDS: Hard-earned Lessons for Optimizing Performance and Cost

By admin March 31, 2026

Managing AWS RDS effectively is more than just clicking buttons. Explore real-world experiences in cost optimization with gp3, Multi-AZ configuration, and backup strategies for large systems.

Docker

Don’t Let Your Containers Become ‘Zombies’: Mastering Docker Healthcheck and Restart Policies

By admin March 30, 2026

Container status is 'Up' but the app is still down? Learn how to use Docker Healthcheck and Restart Policies to build self-healing systems and sleep better at night.

VMware

vSphere HA & DRS: The “Lifesaving” Duo for a Worry-Free Virtual Infrastructure

By admin March 30, 2026

Don't let system outages disrupt your business. A detailed guide on configuring vSphere HA for automatic VM recovery and DRS for professional server resource optimization.

Linux

Mastering awk and sed: Log and Config File Processing Secrets for Sysadmins

By admin March 30, 2026

Stop editing GB-sized log files by hand. Learn how to use awk and sed to automate your Linux workflow with real-world expert examples.

Fedora

Mastering firewalld on Fedora: From Zone Management to Rich Rules Pro Tips

By admin March 30, 2026

Enhance your Fedora server security with this in-depth firewalld guide. Learn how to use Zones, Services, and Rich Rules to block IPs and limit connection rates effectively.

Repository Rescue: Mastering git fsck to Recover Code and Fix Data Errors

Optimize Windows Virtual Machines to Run ‘Silky Smooth’ with VMware OS Optimization Tool (OSOT)

Installing Pyrra: Managing SLOs and Alerts the Google SRE Way

Installing Woodpecker CI on Fedora Server: A Lightweight CI/CD Solution for Gitea

Configuring Docker daemon.json: Prevent Disk Full Errors and Production Server Crashes

Python lxml: The ‘Heavy Weapon’ for Processing XML/HTML in Legacy Systems

Mastering NetworkManager Dispatcher: Automate ‘Everything’ When Changing Networks on Linux

Configuring DNS Split-Horizon with BIND9: The IP “Splitting” Trick for LAN and Internet

Building Background Jobs for Next.js: Say Goodbye to Redis, Welcome Inngest

mysqlslap: How I “Torture” MySQL to Find Real-World Load Limits

Is Linux Fragmented? How to Check and Optimize EXT4 and XFS Drives to Boost I/O Speed

Packaging and Publishing Python Libraries to PyPI: Goodbye setup.py, Hello Poetry

Stop Silly Code Errors with Pre-commit Hooks, ESLint, and Prettier

Configuring SR-IOV on Linux: How to Unlock Maximum Bandwidth for KVM Virtual Machines

Turn Linux into a Wireless Access Point: Build Your Own “Pro” Wi-Fi Router with hostapd and dnsmasq

Database Management on AWS RDS: Hard-earned Lessons for Optimizing Performance and Cost

Don’t Let Your Containers Become ‘Zombies’: Mastering Docker Healthcheck and Restart Policies

vSphere HA & DRS: The “Lifesaving” Duo for a Worry-Free Virtual Infrastructure

Mastering awk and sed: Log and Config File Processing Secrets for Sysadmins

Mastering firewalld on Fedora: From Zone Management to Rich Rules Pro Tips