February 2020 - Page 30 of 64

How to Tune Kernel Parameters with sysctl on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on Debian 10

Introduction Deploying tune kernel parameters with sysctl on debian 10 on a Debian 10 Buster 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 Before […]

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Common Problems 112947

Windows Server 2016 — DISM RestoreHealth fails because component store is corrupt and unrepairable — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 04 June 2027 Affected versions: Windows Server 2016 📖 ~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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FreeBSD 12 — zabbix3-server — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — zabbix3-server — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Zabbix — Remote code execution Related CVEs: CVE-2017-2824 CVE-2020-11800 Upstream summary: Zabbix reports: Fixed security vulnerability cve-2020-11800 (remote code execution). (ZBX-17600) Table of contents Symptom & Impact Environment & Reproduction […]

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Why String is Immutable in Java? — step-by-step Programming tutorial on Progressive Robot

Why String is Immutable in Java?

URL: https://www.progressiverobot.com/string-immutable-final-java/ Why String is immutable in Java is one of the popular interview questions. The string is one of the most used classes in any programming language. We know that String is immutable and final in Java. Java runtime maintains a [String pool](/community/tutorials/what-is-java-string-pool) that makes it a special class. Why String is immutable in […]

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FreeBSD 12 — a2ps-a — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — a2ps-a — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: a2ps — insecure temporary file creation Related CVEs: CVE-2004-1170 CVE-2004-1377 Upstream summary: A Secunia Security Advisory reports that Javier Fernández-Sanguino Peña has found temporary file creation vulnerabilities in the fixps […]

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FreeBSD 12 — elinks — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — elinks — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: elinks — buffer overflow vulnerability Related CVEs: CVE-2008-7224 Upstream summary: SecurityFocus reports: ELinks is prone to an off-by-one buffer-overflow vulnerability because the application fails to accurately reference the last element […]

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How to Configure Jenkins with HTTPS via Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Jenkins with HTTPS via Nginx on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure jenkins with https via nginx both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Jenkins with HTTPS via Nginx on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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FreeBSD 12 — quagga — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — quagga — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: quagga — several security issues Related CVEs: CVE-2003-0858 CVE-2009-1572 CVE-2010-1674 CVE-2010-1675 CVE-2011-3323 CVE-2011-3324 CVE-2011-3325 CVE-2011-3326  +10 more Upstream summary: Quagga reports: The Quagga BGP daemon, bgpd, does not properly bounds […]

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Debian 10 — lilypond — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — lilypond — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-17353 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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