Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up configure apache2 with mod_security on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and […]
🔴 Critical ⏱ 5–30 min Last verified: 8 February 2022 Affected versions: Debian 9 📖 ~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 & […]
Introduction How to Configure PostgreSQL Replication on CentOS Stream 9 on CentOS Stream 9 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 […]
Introduction How to Set Up Tekton CI/CD Pipelines on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 […]
🟠 High ⏱ 15–60 min Last verified: 8 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2022-9691 Related CVEs: CVE-2022-2588 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Two-factor authentication (2FA) adds a second layer of security to SSH logins by requiring both something you know (a password or private key) and something you have (a time-based one-time password generated by an authenticator app). On RHEL 8, the Google Authenticator PAM module is available through EPEL and integrates with OpenSSH via PAM and […]
Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure jaeger distributed tracing on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Jaeger Distributed Tracing on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up a pptp vpn server on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step […]
🟠 High ⏱ 15–60 min Last verified: 7 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2022-9147 Related CVEs: CVE-2021-4155 CVE-2021-3640 CVE-2022-0492 CVE-2021-3752 CVE-2021-44733 CVE-2022-0185 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
🟠 High ⏱ 15–60 min Last verified: 7 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2022-9211 Related CVEs: CVE-2022-0847 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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