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How to Configure newsyslog Log Rotation on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure newsyslog Log Rotation on FreeBSD 12

Introduction This guide explains how to Configure newsyslog Log Rotation on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

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How To Style Text Elements with Font, Size, and Color in CSS — step-by-step DevOps tutorial on Progressive Robot

How To Style Text Elements with Font, Size, and Color in CSS

In this tutorial you will learn about web typography, the art of styling text. You will start the tutorial by writing an HTML structure with headings h1 to h6, then apply apply multiple text-related CSS properties, including font-family, font-size, and color. You will also load custom fonts from Google Fonts, a third-party font-hosting service.

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FreeBSD 12 — mysql57-client — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mysql57-client — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL — Multiple vulnerabilities Related CVEs: CVE-2016-3492 CVE-2016-5616 CVE-2016-5617 CVE-2016-5624 CVE-2016-5625 CVE-2016-5626 CVE-2016-5629 CVE-2016-6662  +9 more Upstream summary: Oracle reports: This Critical Patch Update contains 34 new security patches for […]

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How to Configure Software Defined Networking (SDN) on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Software Defined Networking (SDN) on Windows Server 2016

How to Configure Windows Server Software-Defined Networking (SDN) on Windows Server 2016 Software-Defined Networking (SDN) in Windows Server 2016 decouples the network control plane from the data plane, allowing administrators to programmatically configure and manage network infrastructure through a centralized controller. The Windows Server 2016 SDN stack is built on Hyper-V Network Virtualization and includes […]

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How To Install and Use Command Line Cheat Sheets on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Use Command Line Cheat Sheets on Ubuntu 14.04

Cheat is a command line based Python program that allows system administrators to view and store helpful cheat sheets. It retrieves plain-text examples of a chosen command in order to remind the user of options, arguments, or common uses. Cheat is ideal for “commands that you use frequently, but not frequently enough to remember.”

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FreeBSD 12 — exim-postgresql — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — exim-postgresql — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: exim — local privilege escalation Related CVEs: CVE-2004-0400 CVE-2005-0021 CVE-2005-0022 CVE-2011-0017 Upstream summary: exim.org reports: CVE-2011-0017 – check return value of setuid/setgid. This is a privilege escalation vulnerability whereby the […]

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How to Create a High Availability Setup with Pacemaker, Corosync and Reserved IPs on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How to Create a High Availability Setup with Pacemaker, Corosync and Reserved IPs on CentOS 7

Corosync is an open source cluster engine used to implement high availability within applications. This tutorial will demonstrate how to use Corosync and Pacemaker to create a high availability (HA) infrastructure on the cloud provider with CentOS 7 servers and Reserved IPs. To facilitate the process of setting up and managing the cluster nodes, we are going to use PCS, a command line interface that interacts with both Corosync and Pacemaker.

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