Boot Startup

How to Configure SELinux Policies on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure SELinux Policies on CentOS Stream 10

Introduction This tutorial demonstrates how to Configure SELinux Policies on CentOS Stream 10 on CentOS Stream 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 10 system with the default […]

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Common Problems 127102

CentOS Stream 10 – Common Problem 139 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 22 June 2025 Affected versions: CentOS Stream 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 Apache HTTP Server on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Install Apache HTTP Server on Windows Server 2025

How to Install Apache HTTP Server on Windows Server 2025 Apache HTTP Server remains one of the most widely deployed web servers in the world, and running it on Windows Server 2025 is a practical option for teams that need a familiar open-source stack in a Windows environment. Unlike Linux distributions where Apache is available […]

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How to Back Up PostgreSQL with pg_dump on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Back Up PostgreSQL with pg_dump on RHEL 10

Introduction Setting up back up postgresql with pg_dump on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Back Up PostgreSQL with pg_dump on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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How to Configure PostgreSQL High Availability with Patroni on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure PostgreSQL High Availability with Patroni on CentOS Stream 10

Introduction This tutorial demonstrates how to Configure PostgreSQL High Availability with Patroni on CentOS Stream 10 on CentOS Stream 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 10 system […]

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How to Configure Postfix Mail Server on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Postfix Mail Server on RHEL 10

Introduction This tutorial demonstrates how to Configure Postfix Mail Server on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream repositories […]

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How to Set Up OpenVPN on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Set Up OpenVPN on CentOS Stream 10

Introduction CentOS Stream 10 ships with a stable, security-hardened base that makes deploying set up openvpn on centos stream 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up OpenVPN on CentOS Stream 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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openSUSE Leap 15.6 — grub2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — grub2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14822-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-56737 CVE-2025-0624 CVE-2025-54770 CVE-2025-54771 CVE-2025-61661 CVE-2025-61662 CVE-2025-61663 CVE-2025-61664  +12 more Upstream summary: GNU GRUB (aka GRUB2) through 2.12 has a heap-based buffer overflow in […]

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How to Install Perl on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Install Perl on CentOS Stream 10

Introduction This tutorial demonstrates how to Install Perl on CentOS Stream 10 on CentOS Stream 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 10 system with the default AppStream […]

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How to Install containerd as a Container Runtime on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install containerd as a Container Runtime on RHEL 9

containerd is a high-performance, industry-standard container runtime that implements the Open Container Initiative (OCI) specification. While Docker uses containerd internally as its core container lifecycle manager, containerd can also run standalone as a Kubernetes container runtime — this is the default runtime for most managed Kubernetes services (EKS, GKE, AKS) and the recommended runtime for […]

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