How to Set Up ModSecurity WAF with Apache on RHEL 7 ModSecurity is the most widely deployed open-source Web Application Firewall (WAF), and it integrates natively with Apache as a dynamic module. When paired with the OWASP Core Rule Set (CRS), ModSecurity can detect and block a broad range of web attacks including SQL injection, […]
🟡 Medium ⏱ 10–30 min Last verified: 8 April 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-4424 Related CVEs: CVE-2021-23840 CVE-2021-23841 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
🟠 High ⏱ 5–30 min Last verified: 8 April 2021 Affected versions: Ubuntu 16.04 LTS 📖 ~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 […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2021:4295 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 […]
🟡 Medium ⏱ 5–30 min Last verified: 8 April 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 […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2022:1890 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 […]
Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to manage paging space on ibm aix 7.1 on IBM […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 4.2.0-r0 📖 ~4 min read • Source: Alpine secdb entry — yara 4.2.0-r0 Related CVEs: CVE-2021-45429 Upstream summary: Alpine community repository for vedge ships yara 4.2.0-r0 which addresses CVE-2021-45429. Table of contents Symptom & Impact Environment […]
Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up checkmk on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Checkmk on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.18-r0 📖 ~4 min read • Source: Alpine secdb entry — jbig2dec 0.18-r0 Related CVEs: CVE-2020-12268 Upstream summary: Alpine main repository for vedge ships jbig2dec 0.18-r0 which addresses CVE-2020-12268. Table of contents Symptom & Impact Environment […]
