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Common Problems 113910

RHEL 10 – AppStream modular dependency conflict blocks package install – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 15 January 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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How to Install OpenTofu on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install OpenTofu on RHEL 10

Introduction Setting up install opentofu on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install OpenTofu on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the result on […]

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How to Configure the Hostname and Timezone on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure the Hostname and Timezone on RHEL 10

Introduction How to Configure the Hostname and Timezone on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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AlmaLinux 8 — pam — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — pam — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:14557 Related CVEs: CVE-2025-6020 CVE-2025-8941 CVE-2024-10041 CVE-2024-10963 CVE-2024-22365 Upstream summary: Pluggable Authentication Modules (PAM) provide a system to set up authentication policies without the need to recompile programs to handle authentication. Security […]

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Common Problems 114097

RHEL 10 – DNF package install fails because repository GPG key is missing – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 10 January 2026 Affected versions: RHEL 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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SLES 12 — pam_pkcs11 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — pam_pkcs11 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 January 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:0688-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-24031 CVE-2025-24032 Upstream summary: PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. In versions 0.6.12 and prior, the pam_pkcs11 […]

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How to Register RHEL 10 with Red Hat Subscription Manager — step-by-step RHEL 10 tutorial on Progressive Robot

How to Register RHEL 10 with Red Hat Subscription Manager

Introduction Setting up register rhel 10 with red hat subscription manager on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Register RHEL 10 with Red Hat Subscription Manager, with all the commands you need, the SELinux and firewalld considerations to keep […]

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Common Problems 114048

RHEL 10 Cockpit Web Console Unreachable on Port 9090

🟡 Medium   ⏱ 5–30 min  Last verified: 9 January 2026 Affected versions: RHEL 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 114106

RHEL 10 insights-client Fails Through Corporate Proxy

🟡 Medium   ⏱ 5–30 min  Last verified: 8 January 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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How to Install Nagios Core on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Nagios Core on RHEL 10

Introduction How to Install Nagios Core on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible and […]

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