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How to Install InfluxDB and Telegraf on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install InfluxDB and Telegraf on RHEL 8

InfluxDB 2.x is a purpose-built time-series database that stores metrics with nanosecond precision and exposes a powerful query language called Flux for aggregating and transforming that data. Telegraf is the official plugin-driven metrics collection agent from InfluxData — it ships over 200 input plugins covering everything from CPU and memory to Docker containers and SNMP […]

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How to Configure Percona XtraBackup on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Percona XtraBackup on Debian 10

Introduction How to Configure Percona XtraBackup 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. This […]

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How to Install and Configure MinIO Object Storage on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure MinIO Object Storage on RHEL 7

How to Install and Configure MinIO Object Storage on RHEL 7 MinIO is a high-performance, S3-compatible object storage server written in Go. It can run as a single-node server or in distributed mode across multiple nodes, making it suitable for everything from development environments to production-grade data lakes. Because MinIO ships as a single static […]

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How to Configure MySQL InnoDB Tuning on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure MySQL InnoDB Tuning on Debian 10

Introduction Deploying configure mysql innodb tuning 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 […]

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How to Write Ansible Playbooks for Server Automation on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Write Ansible Playbooks for Server Automation on RHEL 8

Once you have Ansible installed and your inventory configured, playbooks are the primary way to describe and enforce the desired state of your infrastructure. A playbook is a YAML file that groups one or more plays, each targeting a set of hosts and executing an ordered list of tasks. This tutorial covers playbook anatomy, the […]

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Common Problems 121030

Debian 10 – nftables Rules Missing After Reboot – Persistent Firewall Setup

🟠 High   ⏱ 5–30 min  Last verified: 31 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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How to Install Node.js and npm on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Install Node.js and npm on Windows Server 2012 R2

How to Install Node.js and npm on Windows Server 2012 R2 Node.js is the JavaScript runtime built on Chrome’s V8 engine, and npm is its package manager providing access to hundreds of thousands of open-source packages. Installing Node.js on Windows Server 2012 R2 enables you to run server-side JavaScript applications, build tools (Webpack, Gulp, Grunt), […]

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How to Configure Docker Security Scanning on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Docker Security Scanning on Debian 10

Introduction How to Configure Docker Security Scanning 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 Create Python Virtual Environments on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Create Python Virtual Environments on Debian 10

Introduction How to Create Python Virtual Environments 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 Set Up Read-Only Domain Controllers on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Read-Only Domain Controllers on Windows Server 2019

Introduction to Read-Only Domain Controllers A Read-Only Domain Controller (RODC) is a domain controller that hosts a read-only copy of the Active Directory database. RODCs were designed specifically for branch office scenarios where physical security cannot be guaranteed. If an RODC is stolen or compromised, the damage is limited because it holds no writable copy […]

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