Ubuntu Archives - ITFROMZERO - Share tobe shared!

How to Install KVM/QEMU and Virt-Manager on Ubuntu: High-Performance Type-1 Virtualization

By IT From Zero November 6, 2026

Install and master KVM/QEMU with Virt-Manager on Ubuntu: set up high-performance VMs, configure bridged networking on your LAN, and manage remote hosts securely over SSH.

Ubuntu

How to Configure an SFTP Chroot Jail on Ubuntu: Secure Directory Isolation for Users

By IT From Zero November 6, 2026

Granting file upload access while risking system exposure is a common server issue. This guide shows how to set up an SFTP Chroot Jail on Ubuntu to securely isolate users and disable SSH shell access.

Ubuntu

How to Install and Configure Nginx Proxy Manager on Ubuntu: Reverse Proxy and Let’s Encrypt SSL via Web UI

By IT From Zero November 4, 2026

A comprehensive guide to installing and configuring Nginx Proxy Manager on Ubuntu using Docker Compose. Manage reverse proxies, automate Let's Encrypt SSL, secure dashboards with Access Lists, and apply practical operational best practices.

Virtualization

Multipass Guide: Spin Up an Ubuntu VM via CLI in Just 20 Seconds

By IT From Zero November 1, 2026

A complete guide to installing and using Multipass on Linux and Windows. Learn how to launch clean Ubuntu VMs via CLI in 20 seconds, mount host code, and clean up resources quickly.

Linux

Configuring PAM on Linux: Automatically Lock Accounts and Enforce Password Policies

By IT From Zero November 1, 2026

A detailed guide on configuring pam_faillock and pam_pwquality on Linux to automatically lock accounts after 5 failed attempts and enforce strict password standards.

Linux

Installing and Configuring a Samba Server on Linux: File Sharing and Proper Permissions for Windows Networks

By IT From Zero November 1, 2026

A detailed guide on setting up a Samba server on Linux for secure file sharing with Windows workstations. Learn the two-layer permission model, production smb.conf configuration, and Windows credential cache troubleshooting to eliminate Permission Denied errors.

Linux

A Guide to systemd-nspawn on Linux: Build and Manage Lightweight Isolated Containers Without Docker

By IT From Zero October 31, 2026

If you need application isolation on Linux without the resource overhead of the Docker daemon, systemd-nspawn is a compelling alternative. Here are practical insights from deploying lightweight containers in production.

Ubuntu

Ubuntu LVM Configuration Guide: Create, Extend, and Manage Disks Online Without Data Loss

By IT From Zero October 31, 2026

Best-practice LVM configuration on Ubuntu Server: step-by-step guide to creating PVs, VGs, and LVs, plus zero-downtime online disk extension for SysAdmins and DevOps.

Security

Hands-on Guide to Linux Server Security Auditing and Hardening with Lynis

By IT From Zero October 29, 2026

A hands-on guide to auditing and hardening Linux server security with Lynis during a midnight incident. Learn installation, custom.prf tuning, fixing 3 common flaws, and setting up automated Telegram alerts.

Ubuntu

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

By IT From Zero October 25, 2026

Practical guide to automating database and source code backups to Google Drive, S3, and OneDrive using Rclone on Ubuntu, with an optimized Bash script and network tuning tips.