Coolify vs CapRover: Which Self-Hosted PaaS Wins in 2026?
Coolify and CapRover both turn a VPS into a self-hosted PaaS, but they differ in interface, resource use, database handling, and deployment style. This comparison explains where Coolify…
Tutorials
How to Install Docker on Ubuntu: Step-by-Step Guide
Install Docker on Ubuntu in four steps: update packages, add the Docker repository, install Docker Engine, and verify. Includes Docker Compose v2, Contabo VPS notes, and fixes for…
Bash Array Guide: Indexed, Associative, Loops
Use Bash arrays to store and manage lists of values in shell scripts. Covers indexed and associative arrays, declaring, adding, printing, removing elements, looping, and passing arrays to…
HTTP 304 Status Code: Meaning and How to Fix It
Understand the HTTP 304 status code, why browsers use cached content, and when it causes stale pages. Covers ETags, Last-Modified, Cache-Control, CDN caching, troubleshooting, and SEO impact.
How to Self-Host Paperclip on a Contabo VPS in 2026
Learn how to self-host Paperclip – the open-source AI company platform – on a Contabo VPS. Covers VPS setup, Docker config, and launching your first AI company.
List and Manage Linux Services with systemctl
List and manage Linux services with systemctl, from running and failed services to start, stop, restart, reload, enable, and disable commands. Covers service states, journalctl logs, and best…
How to Concatenate Strings in Bash: Guide with Code Examples
A practical guide to Bash string concatenation, with examples for juxtaposition, the += operator, printf, and heredoc multiline blocks. Includes IFS array joining, common errors, and quick fixes.
rsync Command in Linux: Options, Examples, SSH
Use the rsync command to sync files locally or over SSH with efficient incremental transfers. Covers archive mode, compression, dry runs, progress output, exclusions, –delete mirroring, and cron…
What Is JavaScript? A Beginner’s Guide to JS Basics and Uses
Discover what JavaScript is, how it works, and what it's used for. Learn JS syntax, key features, popular frameworks, and how it compares to other languages.
How to Use the Traceroute Command and Interpret Its Output
Traceroute shows the path packets take to a destination, hop by hop. This guide explains how to run it, read the output, and use MTR when you need…
Linux cat Command: Syntax, Options, Real Examples
Use the Linux cat command to view, combine, create, and append files from the terminal. Covers syntax, line numbering, blank line handling, hidden characters, pipes, redirects, and common…
Install PostgreSQL on Ubuntu and Set Up pgAdmin Step by Step
Step-by-step guide to install PostgreSQL on Ubuntu using APT. Includes pgAdmin setup, user creation, and common troubleshooting tips.
MySQL Create User and Grant Privileges: Full Guide
Create MySQL users and grant the right privileges with least-privilege access. Covers local and remote users, GRANT, FLUSH PRIVILEGES, SHOW GRANTS, revoking access, and security best practices.
Linux tee Command: Syntax, Options, Examples
Use the Linux tee command to view command output and save it to files at the same time. Covers syntax, appending, multiple files, sudo usage, pipeline examples, and…
Install and Configure Redis on Ubuntu: A Complete Setup Guide
Check on how to install Redis on Ubuntu, configure IP binding, set password auth, and secure your in-memory cache. Step-by-step VPS guide.