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AI Agent for Server Log Monitoring: From On-call Nightmares to Smart Telegram Alerts

By IT From Zero May 14, 2026

Turn GBs of log files into focused Telegram alerts with an AI Agent. Learn how to use Python and Gemini API to filter noise, analyze server errors, and suggest instant fixes.

Security

Teleport: How I Managed 50+ Servers and K8s Without Using a Single SSH Key

By IT From Zero May 14, 2026

Managing SSH keys for dozens of servers is a significant security challenge. This article shares practical experience in deploying Teleport—an SSH alternative using short-lived certificates to centralize Server and Kubernetes management with detailed audit logs.

Linux

Mastering lsof on Linux: Pro Tips for Finding Processes Occupying Ports and Fixing ‘Too Many Open Files’ Errors

By IT From Zero May 14, 2026

Linux users shouldn't miss out on lsof for monitoring file descriptors and fixing 'Too many open files' errors. Check out 5 real-world troubleshooting tips from a system expert.

Linux

Hunting Down CPU-Hogging “Culprits” on Linux: Mastering perf and Flame Graphs

By IT From Zero May 13, 2026

A detailed guide on using perf on Linux for CPU profiling and Flame Graph generation. Learn how to pinpoint slow functions with minimal overhead.

Python

Build a Pro Data Dashboard in 15 Minutes with Streamlit: Say Goodbye to Frontend Woes

By IT From Zero May 13, 2026

Stop wasting days on HTML/CSS just to build a dashboard. Discover how to create professional data analytics apps with Python and Streamlit in just 15 minutes.

Network

Tshark: The ‘Secret Weapon’ for CLI Network Analysis for SysAdmins

By IT From Zero May 13, 2026

Tshark is the command-line version of Wireshark, allowing SysAdmins to perform deep packet analysis via SSH. Learn how to use display filters and extract real-world data to resolve network issues.

Docker

Docker Socket Security: Don’t Let ‘/var/run/docker.sock’ Become a Backdoor for Hackers

By IT From Zero May 13, 2026

Don't let /var/run/docker.sock be a fatal vulnerability on your VPS. Discover how to use Tecnativa Proxy for Docker API permissions—high security for only 15MB RAM.

Fedora

Configuring VDO on Fedora: How I “Squeezed” 500GB of Data into a 100GB Drive

By IT From Zero May 13, 2026

Running out of server disk space? Discover how to configure VDO on Fedora for data compression and deduplication, multiplying your virtual storage capacity.

Network

Configuring LACP (802.3ad) on Linux: Practical Solutions for Bandwidth Aggregation and Redundancy

By IT From Zero May 13, 2026

A detailed guide on configuring LACP (802.3ad) on Linux for bandwidth aggregation and increased redundancy. This article shares real-world experiences in troubleshooting packet loss and optimizing performance for large systems.

Database

Horizontal MySQL Sharding with Vitess: Scaling Billions of Records with Zero Downtime

By IT From Zero May 13, 2026

Learn how to shard MySQL with Vitess to scale your system to billions of records with zero downtime. Practical insights on Vindex, resharding, and performance optimization for DevOps.

MySQL Group Replication Tutorial: Building an Auto-Failover InnoDB Cluster

OpenSCAP Guide for Linux: Automated Scanning and CIS Benchmark Remediation

A Guide to Configuring Table Partitioning in MySQL: Boosting Large Table Performance with RANGE and LIST

How to Install and Configure Fail2ban on Linux: Block SSH and Web Server Brute-Force Attacks

Configuring kdump on Fedora Server: Capturing Kernel Panics and Analyzing Crash Dumps

Kokoro-TTS Setup and Usage Guide: Building an Offline AI Text-to-Speech System on Linux

Real-Time File Synchronization on CentOS Stream 9 with Lsyncd and Rsync: A Production-Grade Setup

How to Use Rclone on Ubuntu to Automate Data Backups to Google Drive, S3, and OneDrive

Installing and Configuring AIDE on CentOS Stream 9: File Integrity Monitoring and Tamper Detection

How to Monitor HashiCorp Vault with Prometheus and Grafana: Tracking Token Leases, Request Latency, and Unseal Status

AI Agent for Server Log Monitoring: From On-call Nightmares to Smart Telegram Alerts

Teleport: How I Managed 50+ Servers and K8s Without Using a Single SSH Key

Mastering lsof on Linux: Pro Tips for Finding Processes Occupying Ports and Fixing ‘Too Many Open Files’ Errors

Hunting Down CPU-Hogging “Culprits” on Linux: Mastering perf and Flame Graphs

Build a Pro Data Dashboard in 15 Minutes with Streamlit: Say Goodbye to Frontend Woes

Tshark: The ‘Secret Weapon’ for CLI Network Analysis for SysAdmins

Docker Socket Security: Don’t Let ‘/var/run/docker.sock’ Become a Backdoor for Hackers

Configuring VDO on Fedora: How I “Squeezed” 500GB of Data into a 100GB Drive

Configuring LACP (802.3ad) on Linux: Practical Solutions for Bandwidth Aggregation and Redundancy

Horizontal MySQL Sharding with Vitess: Scaling Billions of Records with Zero Downtime