chris

Common Problems 118471

Ubuntu 16.04 LTS – apt update fails with 404 Not Found for package index – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 21 August 2019 Affected versions: Ubuntu 16.04 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 Configure pf Firewall Rules on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure pf Firewall Rules on FreeBSD 12

Introduction How to Configure pf Firewall Rules on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 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 […]

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Common Problems 113041

Windows Server 2016 — RDS Session Host Patch Fails Due to Active User Session Locks — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 21 August 2019 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 — py32-graphite-web — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py32-graphite-web — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-graphite-web — Multiple vulnerabilities Related CVEs: CVE-2013-5093 Upstream summary: Graphite developers report: This release contains several security fixes for cross-site scripting (XSS) as well as a fix for a remote-execution […]

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How to Install Go on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Go on Debian 9 (DEBIAN-9-2)

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install go on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and the resulting […]

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Как установить Node.js в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Как установить Node.js в Ubuntu 18.04

Node.js это платформа для разработки приложений на языке JavaScript, позволяющая быстро создавать приложения, работающие в сети. Использование JavaScript одновременно на клиентской и на серверной стороне позволяет сделать разработку более унифицированной…

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

FreeBSD 12 — bnc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: fd_set — bitmap index overflow in multiple applications Related CVEs: CVE-2004-1052 Upstream summary: 3APA3A reports: If programmer fails to check socket number before using select() or fd_set macros, it's possible […]

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openSUSE Tumbleweed — sarg — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — sarg — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SR:2008:011 (see also SUSE bugzilla) Related CVEs: CVE-2008-1922 Upstream summary: Multiple stack-based buffer overflows in Sarg might allow attackers to execute arbitrary code via unknown vectors, probably a crafted Squid log file. […]

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