All Articles

Browse all Linuxize tutorials, guides, and references.

Jun 19, 2026 • 9 min read

rsync Incremental Backups with --link-dest

Create space-efficient rsync incremental backups with --link-dest. Each dated snapshot remains directly browsable while unchanged files share disk space.

rsync incremental backup snapshots connected through hard links

Jun 18, 2026 • 7 min read

How to Install and Use Ollama on Ubuntu: Run LLMs Locally

Install Ollama on Ubuntu, run large language models locally, manage downloaded models, use GPU acceleration, and send prompts through the local API.

Install Ollama on Ubuntu to run large language models locally

Jun 17, 2026 • 5 min read

Configure Odoo with Nginx as a Reverse Proxy

Put Nginx in front of Odoo as an SSL termination and reverse proxy. This guide covers the full Nginx server block, WebSocket proxying for live chat, HTTP to HTTPS redirection, and locking down the Odoo backend.

Jun 17, 2026 • 6 min read • series

Bash Subshells: Isolate Variables and Directory Changes

Bash subshells run commands in an isolated shell environment. This guide explains parentheses, variable scope, directory changes, command substitution, pipelines, and exit codes.

Bash subshells shown as an isolated child shell inside a parent shell

Jun 16, 2026 • 8 min read

Odoo Backup: Automate Database and Filestore Backups

Set up automatic Odoo backups that include the PostgreSQL database and filestore. This guide covers validation, retention, cron scheduling, off-site copies, and restore testing.

Automated Odoo database and filestore backup workflow

Jun 16, 2026 • 7 min read • series

The ~/.ssh Folder: Files, Permissions, and Layout

What lives inside ~/.ssh on Linux: private keys, authorized_keys, known_hosts, config, and the recommended permissions for each file.

The contents and permissions of the ~/.ssh folder on Linux

Jun 15, 2026 • 10 min read

Python Tuples: Create, Access, Slice, and Unpack

Work with Python tuples: how to create, access, slice, unpack, and loop over them, plus how tuples differ from lists and when to use each.

Jun 15, 2026 • 5 min read

How to Undo Last Git Commit

Undo the last Git commit with git reset or git revert, and pick the right option to keep your changes, discard them, or safely undo a pushed commit.

Jun 15, 2026 • 5 min read

hostnamectl Command in Linux: Set and Query Hostname

Use hostnamectl to view and change the Linux hostname. Covers static, transient, and pretty names, system metadata, remote hosts, and common errors.

hostnamectl changing a Linux system name from old-host to web-server-01

Jun 14, 2026 • 6 min read

How to Setup a Git Server

Run your own private Git server over SSH on Linux. This guide covers installing Git, creating the git user, adding SSH keys, and pushing your first repository.

Jun 14, 2026 • 4 min read

How to Change Root Password in Ubuntu Linux

Set or change the root password on Ubuntu using sudo passwd, switch to the root account, and understand why root login is disabled by default.

Jun 14, 2026 • 6 min read

host Command in Linux: DNS Lookup

The host command is a simple DNS lookup tool. This guide covers forward and reverse lookups, querying specific record types, using a chosen name server, and reading the output.

Running DNS lookups with the host command in a Linux terminal

Jun 13, 2026 • 8 min read

IPv4 vs IPv6: Differences Explained

IPv4 and IPv6 are the two versions of the Internet Protocol. This guide explains how they differ in addressing, header format, and features, with a side-by-side comparison.

Jun 13, 2026 • 4 min read

pidof Command in Linux: Find Process IDs by Name

The pidof command finds the process ID (PID) of a running program by name. This guide explains how to use pidof, its options, and how to pair it with kill to manage processes.

Jun 11, 2026 • 8 min read • series

Linux Pipes Explained: How to Use the | Operator

Linux pipes connect command output to another command's input. Learn the | operator, pipefail, stderr piping, xargs, named pipes, and process substitution.

Linux commands connected through a shell pipeline

Jun 10, 2026 • 4 min read

Linux Time Command

This guide shows how to use the Linux time command to measure execution time, explains real/user/sys, and covers Bash, Zsh, and GNU time.

Jun 10, 2026 • 4 min read

Uptime Command in Linux

The uptime command shows how long a Linux system has been running, the number of logged-in users, and the load averages for the last 1, 5, and 15 minutes.