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How to Set Up Prometheus and Grafana Monitoring on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Set Up Prometheus and Grafana Monitoring on Windows Server 2016

How to Monitor Windows Server with Prometheus and Grafana on Windows Server 2016 Prometheus and Grafana form a powerful open-source monitoring stack widely used in both Linux and Windows environments. Prometheus is a time-series metrics database that scrapes exporters at regular intervals. Grafana is a visualization platform that queries Prometheus and renders dashboards. On Windows […]

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How to Install Apache2 on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Apache2 on FreeBSD 13

Introduction This guide explains how to Install Apache2 on FreeBSD 13 on FreeBSD 13. 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 privilege separation. […]

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How to Install Cockpit Web Console on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Cockpit Web Console on Debian 9

Introduction Deploying install cockpit web console on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian […]

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Common Problems 118613

cron Jobs Not Running on Ubuntu 16.04

🟡 Medium   ⏱ 5–30 min  Last verified: 13 September 2021 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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AlmaLinux 8 — spamassassin — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — spamassassin — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:4315 Related CVEs: CVE-2020-1946 Upstream summary: The SpamAssassin tool provides a way to reduce unsolicited commercial email (spam) from incoming email. Security Fix(es): * spamassassin: Malicious rule configuration files can be configured […]

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How to Use Makefile for Build Automation on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Use Makefile for Build Automation on FreeBSD 12

Introduction How to Use Makefile for Build Automation 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 […]

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How to Use Docker Volumes on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Use Docker Volumes on FreeBSD 13

Introduction Deploying use docker volumes on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]

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How to Set Up Amanda Backup on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up Amanda Backup on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up amanda backup on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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How to Set Up Consul on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Consul on Debian 9

Introduction How to Set Up Consul on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. This […]

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How to Install GCC and Build Essential Tools on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install GCC and Build Essential Tools on Debian 9

Introduction This guide explains how to Install GCC and Build Essential Tools on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install […]

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