Logging Monitoring

How to Install Ansible on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Ansible on RHEL 7

How to Install Ansible on RHEL 7 Ansible is an agentless automation platform that lets you manage servers, deploy applications, and orchestrate complex workflows using simple YAML-based playbooks. Unlike other configuration management tools, Ansible requires no daemon or database on managed nodes — it connects over SSH and executes tasks on demand. On Red Hat […]

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Common Problems 115469

RHEL 7 SSH login denied due to key permissions and SELinux context

🟠 High   ⏱ 5–30 min  Last verified: 3 October 2021 Affected versions: RHEL 7 📖 ~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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Oracle Linux 8 — virt-manager security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt-manager security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3464)

🟢 Low   ⏱ 5–15 min  Last verified: 2 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3464 Related CVEs: CVE-2019-10183 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Common Problems 115138

Cockpit Web Console Unreachable on Port 9090 – RHEL 8 Post 169

🟡 Medium   ⏱ 5–30 min  Last verified: 2 October 2021 📖 ~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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FreeBSD 13 — apache+mod_ssl+mod_deflate — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — apache+mod_ssl+mod_deflate — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: apache — Prevent chunk-size integer overflow on platforms where sizeof(int) < sizeof(long) Related CVEs: CVE-2005-2088 CVE-2005-3352 CVE-2006-3747 Upstream summary: Apache ChangeLog reports: Integer overflow in the ap_proxy_send_fb function in proxy/proxy_util.c […]

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AlmaLinux 8 — python-schedutils — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python-schedutils — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3627 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 113561

Windows Server 2012 R2 — NPS service not processing RADIUS requests — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 2 October 2021 Affected versions: Windows Server 2012 R2 📖 ~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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FreeBSD 13 — rubygem18-rdoc — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem18-rdoc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Ruby — XSS exploit of RDoc documentation generated by rdoc Related CVEs: CVE-2013-0256 Upstream summary: Ruby developers report: RDoc documentation generated by rdoc bundled with ruby are vulnerable to an […]

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Common Problems 113478

Windows Server 2012 R2 — SoftwareDistribution Corruption Causes Endless Update Retry Loop — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 2 October 2021 Affected versions: Windows Server 2012 R2 📖 ~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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