May 2026 - Page 199 of 223

Common Problems 116000

Ubuntu 26.04 LTS UFW Rules Block Container Traffic

🟠 High   ⏱ 5–30 min  Last verified: 3 May 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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 Secure MySQL 9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install MySQL 9 on Ubuntu 26.04

MySQL 9 brings improved performance, enhanced JSON support, and better replication capabilities over previous versions. Ubuntu 26.04 LTS includes MySQL 9 in its default repositories, making installation straightforward. This guide installs, secures, and verifies MySQL 9. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server A user with sudo privileges Step 1 […]

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FreeBSD 13 — php84-composer — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php84-composer — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PHP Composer — Multiple vulnerabilities Related CVEs: CVE-2026-40176 CVE-2026-40261 Upstream summary: Composer project reports: Fixed command injection via malicious Perforce reference (GHSA-gqw4-4w2p-838q / CVE-2026-40261) Fixed command injection via malicious Perforce […]

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Amazon Linux 2023 — ecs-service-connect-agent — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — ecs-service-connect-agent — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2026-1532 Related CVEs: CVE-2026-26308 CVE-2026-26309 CVE-2026-26310 CVE-2026-26311 CVE-2026-26330 CVE-2024-11407 CVE-2024-25176 CVE-2024-25177  +12 more Upstream summary: Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, the Envoy […]

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How to Configure OpenVPN Server on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure OpenVPN Server on FreeBSD 15

Introduction How to Configure OpenVPN Server on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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FreeBSD 15 — zabbix-frontend — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — zabbix-frontend — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 May 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: zabbix-frontend — multiple XSS vulnerabilities Upstream summary: Martina Matari reports: These URLs (hostgroups.php, usergrps.php) are vulnerable to persistent XSS attacks due to improper sanitation of gname variable when creating user […]

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FreeBSD 15 — p5-subversion — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — p5-subversion — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 May 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: subversion — heap overflow vulnerability Related CVEs: CVE-2009-2411 Upstream summary: A Subversion Security Advisory reports: Subversion clients and servers have multiple heap overflow issues in the parsing of binary deltas. […]

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