Boot Startup

How to Configure Redis Sentinel on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Redis Sentinel on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up configure redis sentinel on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully and the […]

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How to Configure Windows Server Backup on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Windows Server Backup on Windows Server 2016

How to Set Up Windows Server Backup on Windows Server 2016 Windows Server Backup is a built-in feature of Windows Server 2016 that allows administrators to protect critical data and system configurations without purchasing third-party software. It supports full server backups, bare metal recovery, individual volume and folder backups, and scheduled automatic backup jobs. Setting […]

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How to Configure Kubernetes Ingress Controller on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Kubernetes Ingress Controller on Debian 10

Introduction How to Configure Kubernetes Ingress Controller 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 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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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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Ubuntu 20.04 — grub2 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — grub2 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 May 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4432-2 Related CVEs: https://launchpad.net/bugs/1889556 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 CVE-2020-15705  +2 more Upstream summary: USN-4432-1 fixed vulnerabilities in GRUB2 affecting Secure Boot environments. Unfortunately, the update introduced regressions for […]

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How to Configure Jail Networking on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure Jail Networking on FreeBSD 12

Introduction This guide explains how to Configure Jail Networking 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 privilege […]

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