Linux

How to Install Caddy Web Server on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Caddy Web Server on Debian 13

Introduction Deploying install caddy web server on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will need a registered […]

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How to Install Elasticsearch 8 on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Elasticsearch 8 on RHEL 10

Introduction How to Install Elasticsearch 8 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 configuration is reproducible and […]

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Common Problems 124103

Oracle Linux 10 – SELinux policy update leaves custom module disabled – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 September 2025 Affected versions: Oracle Linux 10 📖 ~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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How to Install Composer on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Composer on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install composer both straightforward and auditable. This tutorial covers the complete procedure for how to Install Composer on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites Before you begin, ensure you […]

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

How to Install SonarQube on Debian 13

Introduction Deploying install sonarqube on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 13 Trixie is fully updated […]

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Debian 13 — ppp — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ppp — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 September 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1002 CVE-2006-2194 CVE-2008-5366 CVE-2008-5367 CVE-2014-3158 CVE-2015-3310 CVE-2018-11574 CVE-2020-8597  +2 more Upstream summary: Integer underflow in pppd in cbcp.c for ppp 2.4.1 allows remote attackers to cause a denial […]

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Debian 13 — arduino-core-avr — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — arduino-core-avr — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 September 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-69209 Upstream summary: ArduinoCore-avr contains the source code and configuration files of the Arduino AVR Boards platform. A vulnerability in versions prior to 1.8.7 allows an attacker to trigger […]

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

Debian 13 — bcel — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 September 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-34169 CVE-2022-42920 Upstream summary: The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt […]

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Common Problems 119592

Debian 13 – Nginx 502 Bad Gateway from PHP-FPM Socket Permissions – Fix

🟠 High   ⏱ 5–30 min  Last verified: 28 September 2025 Affected versions: Debian 13 (Trixie) 📖 ~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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Debian 13 — jetty9 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — jetty9 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 September 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-7656 CVE-2017-7657 CVE-2017-7658 CVE-2017-9735 CVE-2018-12536 CVE-2019-10241 CVE-2019-10247 CVE-2019-17632  +12 more Upstream summary: In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 […]

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