Security Hardening

How to Harden PHP on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Harden PHP on Oracle Linux 10

Introduction This tutorial demonstrates how to Harden PHP on Oracle Linux 10 on Oracle Linux 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 Oracle Linux 10 system with the default AppStream […]

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SLES 16 — libcaca0 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — libcaca0 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 6 November 2025 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:0754-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-30498 CVE-2021-30499 CVE-2018-20547 CVE-2021-3410 CVE-2022-0856 CVE-2018-20544 CVE-2018-20545 CVE-2018-20546  +2 more Upstream summary: A flaw was found in libcaca. A heap buffer overflow in export.c in […]

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Common Problems 111221

Windows Server 2025 — SQL Server backup to UNC share failing with access denied on Server 2025 — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 6 November 2025 Affected versions: Windows Server 2025 📖 ~2 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 Go 1.23 on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Go 1.23 on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install go 1.23 on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will […]

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Gentoo Linux — sys-libs/pam — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sys-libs/pam — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202508-01 Related CVEs: CVE-2024-10963 CVE-2025-6020 CVE-2024-10041 CVE-2020-27780 Upstream summary: Multiple vulnerabilities have been discovered in PAM. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment […]

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Debian 13 — thunderbird — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — thunderbird — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2353 CVE-2006-0292 CVE-2006-0294 CVE-2006-0295 CVE-2006-0296 CVE-2006-0297 CVE-2006-0298 CVE-2006-0299  +12 more Upstream summary: run-mozilla.sh in Thunderbird, with debugging enabled, allows local users to create or overwrite arbitrary files via […]

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How to Install Python 3.13 on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Python 3.13 on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install python 3.13 on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will […]

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How to Tune the Linux Kernel with sysctl on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Tune the Linux Kernel with sysctl on Debian 13

Introduction This guide explains how to Tune the Linux Kernel with sysctl on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install […]

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How to Enable Brotli Compression in Nginx on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Enable Brotli Compression in Nginx on Oracle Linux 10

Introduction Oracle Linux 10 ships with a stable, security-hardened base that makes deploying enable brotli compression in nginx on oracle linux 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Enable Brotli Compression in Nginx on Oracle Linux 10, including dnf module streams where applicable, systemd unit management, and the […]

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How to Set Up ModSecurity WAF with Apache on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up ModSecurity WAF with Apache on Oracle Linux 10

Introduction Setting up set up modsecurity waf with apache on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up ModSecurity WAF with Apache on Oracle Linux 10, with all the commands you need, the SELinux […]

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