What Is PostgreSQL? Ubuntu Install and MySQL Differences
PostgreSQL strengths, Ubuntu install, users and databases with psql, pg_hba.conf basics and a practical MySQL comparison table. An honest answer to which database fits which project.
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What Is Anycast DNS? Faster, More Resilient DNS Explained
Anycast DNS announces one IP address from many locations and sends each query to the nearest node. We explain how it works, where it falls short and when it makes a real difference.
Database Backup and Restore: mysqldump and pg_dump Guide
How to back up MySQL, MariaDB and PostgreSQL with mysqldump and pg_dump: keep passwords off the command line, automate with cron, restore, verify and copy backups off the server.
What Is Traceroute? How to Use and Read Tracert Output
Traceroute (tracert) shows which routers your packets cross on the way to a server. We explain TTL, the commands, each output line and the false alarms that fool beginners.
What Is a Wildcard SSL Certificate and How Do You Install It?
What a wildcard SSL certificate covers, why it needs DNS-01 validation, how to install it with Let's Encrypt or cPanel, where multi-level subdomains break it, and the risks.
How to Install MySQL on Ubuntu and Tune Its Performance
Install MySQL on Ubuntu with apt, then secure it, set privileges, size the buffer pool, enable the slow query log and read EXPLAIN. Every step follows official documentation.
What Is ModSecurity? WAF Basics and How to Fix 403 Errors
What is ModSecurity, what does it do as a WAF, and what should you do when it returns a 403? Rule sets, DetectionOnly mode and false positive handling explained.
What Is Vue JS? What It Does and When to Choose It
Vue.js is a JavaScript framework for building user interfaces. We explain how it works, when to choose it and whether you need SSR for SEO.
What Is CageFS? Account Isolation on Shared Hosting
CageFS locks each CloudLinux hosting account inside its own virtual file system. We explain neighbor protection, how it differs from LVE and what site owners notice.
Fail2ban Setup Guide: Protect Your Server From Brute Force
How do you block SSH and web login attacks with fail2ban? Jail, filter and action logic, jail.local settings, ban list checks, whitelist and the risk of locking yourself out.