admin – Page 66 – ITFROMZERO

Upgrading VMware ESXi 7.0 to 8.0 via ESXCLI: Fast, Precise, and Minimal Risk

By admin April 12, 2026

Quickly and safely upgrade VMware ESXi 7.0 to 8.0 using the ESXCLI command line. This article covers detailed steps, configuration backups, and common driver troubleshooting.

Security

Trapping SSH Hackers with Cowrie Honeypot: How I Caught Malware and Watched Intrusion Behavior Live

By admin April 12, 2026

Honeypots are a proactive way to trap attackers and study intrusion patterns. This article guides you through installing Cowrie on Linux to simulate SSH services, enabling you to collect malware and replay hacker sessions.

Python

Processing Millions of Python Records: Don’t Let MemoryError Crash Your Server

By admin April 12, 2026

Don't let your Python scripts crash due to RAM overflow. Discover how to use Generators and Iterators to process millions of records smoothly with just a few KB of memory through real-world experience.

Monitoring

Mastering MySQL & PostgreSQL with Prometheus Exporter: Ending the ‘Guessing Game’ of Slow Queries

By admin April 12, 2026

Don't let your database become a 'black box'. A detailed guide on using Prometheus Exporter to identify slow queries, handle replication lag, and optimize DB performance based on real-world experience.

Linux

Hunting Down and Eliminating Zombie Processes: When Linux Servers Are Besieged by the Undead

By admin April 12, 2026

Zombie processes don't consume RAM but can exhaust PIDs, paralyzing your Linux server. Discover how to track down PPIDs and eliminate these 'undead' processes based on real-world experience.

Security

CSP for Nginx & Apache: A Powerful ‘Shield’ Against XSS for Your Website

By admin April 12, 2026

Configuring Content Security Policy (CSP) is a vital step in protecting your website from XSS. Check out this detailed guide for Nginx and Apache to help your site achieve an A+ security rating.

Docker

Dockerize Your Project in a Heartbeat with `docker init`: Fast, Standard, and Effortless

By admin April 12, 2026

Forget writing Dockerfiles from scratch! The docker init command helps you generate best-practice Docker and Compose configs in just 30 seconds, optimizing for size and security.

Database

DBeaver: The Ultimate ‘Weapon’ for Managing MySQL, PostgreSQL, and MongoDB

By admin April 12, 2026

DBeaver is an all-in-one database management tool that handles everything from MySQL and PostgreSQL to MongoDB in one interface. Learn how to save RAM and boost productivity.

Network

Linux Security: Implementing DoH and DoT to ‘Stay Hidden’ from ISPs

By admin April 12, 2026

Don't let ISPs know what you're accessing. A detailed guide on encrypting DNS with DoT and DoH on Linux for total privacy protection.

Python

Regex for Beginners: Deciphering the “Code” and Processing Data in 5 Minutes

By admin April 12, 2026

Master Regex in Python for lightning-fast data processing. A detailed guide from basic syntax to data extraction techniques using real-world examples.