January 2022 - Page 41 of 72

Common Problems 119101

Ubuntu 14.04 LTS PHP-FPM workers exhausted causing 502 Bad Gateway

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: 14.04 📖 ~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 […]

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FreeBSD 13 — libbrotli — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — libbrotli — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: brotli — buffer overflow Related CVEs: CVE-2016-1624 CVE-2016-1968 Upstream summary: Google Chrome Releases reports: [583607] High CVE-2016-1624: Buffer overflow in Brotli. Credit to lukezli. Mozilla Foundation reports: Security researcher Luke […]

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Common Problems 113400

Windows Server 2012 R2 — DNS Server service crashes after zone reload — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 03 May 2027 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Debian 11 — libthai — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libthai — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-4012 Upstream summary: Multiple integer overflows in LibThai before 0.1.13 might allow context-dependent attackers to execute arbitrary code via long strings that trigger heap-based buffer overflows, related to […]

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How to Install InfluxDB and Telegraf on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install InfluxDB and Telegraf on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install influxdb and telegraf on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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Debian 11 — nd — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — nd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0014 Upstream summary: Multiple buffer overflows in the nd WebDAV interface 0.8.2 and earlier allows remote web servers to execute arbitrary code via certain long strings. Table of […]

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Debian 11 — igraph — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — igraph — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-20349 Upstream summary: The igraph_i_strdiff function in igraph_trie.c in igraph through 0.7.1 has an NULL pointer dereference that allows attackers to cause a denial of service (application crash) […]

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Debian 11 — cimg — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — cimg — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-7587 CVE-2018-7588 CVE-2018-7589 CVE-2018-7637 CVE-2018-7638 CVE-2018-7639 CVE-2018-7640 CVE-2018-7641  +7 more Upstream summary: An issue was discovered in CImg v.220. DoS occurs when loading a crafted bmp image that […]

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Ubuntu 20.04へのDocker Composeのインストールおよび使用方法 — step-by-step Docker tutorial on Progressive Robot

Ubuntu 20.04へのDocker Composeのインストールおよび使用方法

Docker Composeは、YAMLファイルの定義に基づいてマルチコンテナアプリケーション環境を実行できるツールです。サービス定義を使用して、ネットワークやデータ量を共有できる複数のコンテナで完全にカスタマイズ可能な環境を構築します。本ガイドでは、Ubuntu 20.04サーバーにDocker Composeをインストールし、このツールを使用する方法を説明します。

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