December 2019 - Page 57 of 69

How to Configure Nginx Virtual Hosts on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure Nginx Virtual Hosts on FreeBSD 12

Introduction How to Configure Nginx Virtual Hosts on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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How to Configure Email with Sendmail on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Email with Sendmail on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure email with sendmail on ibm aix 7.2 on […]

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How to Set Up Two-Factor Authentication (2FA) for SSH on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Audit Linux Security with Lynis on Ubuntu 26.04

Lynis is an open-source security auditing tool for Linux systems. It performs in-depth security scans of the system configuration, checks for vulnerabilities, and provides detailed hardening recommendations with a scored report. This guide runs a Lynis audit on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with […]

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What is a Virtual Machine? — step-by-step DevOps tutorial on Progressive Robot

What is a Virtual Machine?

A virtual machine, also commonly referred to as VM, is a guest system running on top of a virtualization software or hypervisor. VirtualBox, VMWare, and QEMU are examples of popular tools that are able to emulate network, disk, and other hardware resources to build virtualized environments that behave as physical computers. These environments are isolated from each other and from the host where the virtualization software is installed, each running distinct operating systems.

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FreeBSD 12 — py39-beaker — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-beaker — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-beaker — arbitrary code execution vulnerability Related CVEs: CVE-2013-7489 Upstream summary: matheusbrat reports: The Beaker library through 1.12.1 for Python is affected by deserialization of untrusted data, which could lead […]

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How to Configure CoreOS rkt Container Runtime on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure CoreOS rkt Container Runtime on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure coreos rkt container runtime on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]

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Debian 10 — dino-im — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — dino-im — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16235 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Установка веб-сервера Apache в CentOS 7 — step-by-step Linux tutorial on Progressive Robot

Установка веб-сервера Apache в CentOS 7

HTTP-сервер Apache — самый широко используемый веб-сервер в мире. Он имеет множество мощных функций, включая динамически загружаемые модули, надежную поддержку различных медиа-форматов и интеграцию с другим популярным программным обеспечением. В…

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