🟡 Medium ⏱ 10–30 min Last verified: 9 January 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5662-1 Related CVEs: CVE-2019-16163 CVE-2019-19012 CVE-2019-19203 CVE-2019-19204 CVE-2019-19246 Upstream summary: It was discovered that Oniguruma incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a […]
Introduction Deploying configure logstash on debian 9 on a Debian 9 Stretch 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 9 Stretch […]
🟢 Low ⏱ 5–15 min Last verified: 9 January 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2019-13132 CVE-2019-6250 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-201808-2 Related CVEs: CVE-2018-14912 Upstream summary: Type: directory traversal. Status: Fixed. Affected: 1.2-1. Fixed in: 1.2.1-1. Group: AVG-745. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]
How to Configure Huge Pages for Database Performance on RHEL 7 Database engines — particularly Oracle, PostgreSQL, and MySQL/InnoDB — allocate and manage large memory pools for their buffer caches and shared memory segments. By default, the Linux kernel manages memory in 4 KB pages, which means that a 32 GB database buffer pool requires […]
🟡 Medium ⏱ 5–30 min Last verified: 8 January 2020 📖 ~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 […]
🟠 High ⏱ 5–30 min Last verified: 8 January 2020 Affected versions: 8.6 8.7 8.8 8.9 8.10 📖 ~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 […]
Introduction This tutorial covers How to Deploy a Zend Framework Application on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: […]
🟡 Medium ⏱ 10–30 min Last verified: 8 January 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: tiff — buffer overflow vulnerability Related CVEs: CVE-2004-0803 CVE-2004-0804 CVE-2004-0886 CVE-2004-1308 CVE-2005-1544 Upstream summary: A Gentoo Linux Security Advisory reports: Tavis Ormandy of the Gentoo Linux Security Audit Team discovered […]
Introduction How to Set Up Yubikey Authentication on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. […]
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