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Mastering Production-Ready Bash Scripting for DevOps and Sysadmins

Robust bash scripting requires strict error handling with set -euo pipefail, alongside arrays, loops, traps, and cron-friendly patterns to automate server tasks reliably. This lesson from the Ubuntu Mastery series delivers practical, no-fluff techniques for IT professionals writing production scripts.

Dargslan · 2 hours ago

Nginx Production Setup with TLS: Reverse Proxy, Let's Encrypt, and Security Headers

Configuring nginx with TLS encryption is critical for production deployments; this lesson covers reverse proxy setup, automated certificate management via certbot, HTTP/2 enablement, and HSTS implementation. The tutorial provides patterns that meet security audit standards, making it a practical guide for IT professionals.

Dargslan · 2 hours ago

LXD System Containers: Full-OS Workloads and DNS Configuration

LXD system containers offer a lightweight alternative to virtual machines for running full-OS workloads on Ubuntu, with better resource efficiency. This tutorial covers DNS setup using systemd-resolved and best practices for hostname management and /etc/hosts.

Dargslan · 2 hours ago

LVM and Filesystem Operations for DevOps and Sysadmins

The lesson covers the core components of Linux Volume Manager: Physical Volumes, Volume Groups, and Logical Volumes, with practical walkthroughs on creating, resizing, and managing them. It also demonstrates using snapshots for consistent backups and online filesystem resizing with resize2fs to minimize downtime.

Dargslan · 2 hours ago

SSH Hardening for Ubuntu 24.04: Ed25519 Keys and Drop-In Configs

Practical steps for securing SSH on Ubuntu 24.04 include generating Ed25519 keys, disabling password authentication and root login, and using drop-in configuration files for modular management. Match User blocks allow tailored settings, making this essential for DevOps and sysadmins.

Dargslan · 2 hours ago

Automate Server Security with unattended-upgrades and Ubuntu Pro Livepatch

Unattended-upgrades automatically installs security patches to keep servers secure without manual intervention. Ubuntu Pro Livepatch applies kernel patches without rebooting, ensuring critical systems stay online with minimal downtime.

Dargslan · 2 hours ago

Building a Robust Backup Strategy with Restic and S3 on Ubuntu

A comprehensive guide to encrypted, deduplicated backups using Restic and S3, covering secure IAM configurations, systemd timer automation, LVM snapshots for databases, and regular restore drills. This tutorial equips DevOps engineers with modern, reliable backup workflows for Ubuntu systems.

Dargslan · 2 hours ago

Wall Street vs. DeFi: CME Targets Hyperliquid as On-Chain Derivatives Hit a Tipping Point

The podcast argues that Wall Street's lobbying to regulate decentralized exchange Hyperliquid is driven by fear of losing market share, not investor protection. Hyperliquid's on-chain transparency offers full auditability that traditional exchanges lack, raising questions about applying the same rules to fundamentally different systems.

Web3 Outpost · 2 hours ago