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How to Configure Grafana Alerting on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Grafana Alerting on Debian 10

Introduction Deploying configure grafana alerting on debian 10 on a Debian 10 Buster 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 You will need […]

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How to Configure Podman Compose on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Podman Compose on RHEL 8

Podman Compose brings Docker Compose-style multi-container orchestration to Podman without requiring a Docker daemon or root privileges. It reads standard docker-compose.yml files and translates them into podman commands, so existing Compose definitions work without modification. On RHEL 8, Podman is already installed, and Podman Compose can be added from EPEL or via pip. This tutorial […]

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How to Configure GitHub Actions Self-Hosted Runner on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure GitHub Actions Self-Hosted Runner on FreeBSD 12

Introduction This guide explains how to Configure GitHub Actions Self-Hosted Runner 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 […]

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How to Configure rkhunter Rootkit Scanner on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure rkhunter Rootkit Scanner on Debian 10

Introduction How to Configure rkhunter Rootkit Scanner on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster 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 10. […]

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How to Install and Configure SQLite on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure SQLite on RHEL 8

SQLite is a serverless, file-based relational database engine that requires no installation of a separate server process and no ongoing administration. It stores an entire database — tables, indexes, and data — in a single cross-platform file, making it ideal for development environments, embedded applications, configuration stores, and lightweight production workloads that do not need […]

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Common Problems 121050

Debian 10 – sudo Stops Working Due to Broken Permissions – Emergency Repair

🔴 Critical   ⏱ 5–30 min  Last verified: 16 May 2020 Affected versions: Debian 10 📖 ~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 & […]

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Common Problems 115554

crond Service Not Running Scheduled Jobs

🟡 Medium   ⏱ 5–30 min  Last verified: 16 May 2020 📖 ~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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How to Configure PMR Data Collection on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure PMR Data Collection 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 pmr data collection on ibm aix 7.2 on […]

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How to Install and Configure iptables on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure iptables on Debian 10

Introduction This guide explains how to Install and Configure iptables on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install with the […]

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How to Add a Sudo User on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Add a Sudo User on SLES 15

Introduction This tutorial covers How to Add a Sudo User on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]

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