Linux

How to Monitor MariaDB Performance with mytop on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Monitor MariaDB Performance with mytop on Debian 13

Introduction This guide explains how to Monitor MariaDB Performance with mytop 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 with […]

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How to Enable Gzip and Brotli Compression in Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Enable Gzip and Brotli Compression in Nginx on RHEL 10

Introduction How to Enable Gzip and Brotli Compression in Nginx 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 […]

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Debian 13 — freedink-dfarc — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — freedink-dfarc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 September 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-0496 Upstream summary: Directory traversal issues in the D-Mod extractor in DFArc and DFArc2 (as well as in RTsoft's Dink Smallwood HD / ProtonSDK version) before 3.14 allow an […]

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Debian 13 — python-markdown2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — python-markdown2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 September 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-11888 CVE-2021-26813 Upstream summary: python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match succeeds. For example, an attack might use elementname@ or elementname- […]

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Debian 13 — libpam-krb5 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libpam-krb5 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 September 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-0360 CVE-2009-0361 CVE-2020-10595 CVE-2023-3326 Upstream summary: Russ Allbery pam-krb5 before 3.13, when linked against MIT Kerberos, does not properly initialize the Kerberos libraries for setuid use, which allows […]

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Debian 13 — imlib2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — imlib2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 22 September 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0802 CVE-2004-1026 CVE-2006-4806 CVE-2006-4807 CVE-2006-4808 CVE-2006-4809 CVE-2008-2426 CVE-2008-5187  +12 more Upstream summary: Buffer overflow in the BMP loader in imlib2 before 1.1.2 allows remote attackers to execute arbitrary […]

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Common Problems 119620

Debian 13 initramfs Missing Storage Module Prevents Root Mount

🟡 Medium   ⏱ 5–30 min  Last verified: 22 September 2025 📖 ~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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How to Install Ceph Storage Cluster on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Ceph Storage Cluster on Debian 13

Introduction This guide explains how to Install Ceph Storage Cluster 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 with the […]

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Debian 11 — python-h2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-h2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 September 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-57804 Upstream summary: h2 is a pure-Python implementation of a HTTP/2 protocol stack. Prior to version 4.3.0, an HTTP/2 request splitting vulnerability allows attackers to perform request smuggling […]

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Debian 13 — openid4java — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — openid4java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 September 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-4314 Upstream summary: message/ax/AxMessage.java in OpenID4Java before 0.9.6 final, as used in JBoss Enterprise Application Platform 5.1 before 5.1.2, Step2, Kay Framework before 1.0.2, and possibly other products […]

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