June 2019 - Page 54 of 62

Common Problems 117999

Ubuntu 18.04 LTS Failed to Fetch Repository Metadata

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: 18.04 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 Install and Configure Routing and Remote Access (RRAS) on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Install and Configure Routing and Remote Access (RRAS) on Windows Server 2019

Introduction to Routing and Remote Access Service on Windows Server 2019 Routing and Remote Access Service (RRAS) is a built-in Windows Server 2019 feature that provides multi-protocol routing, remote access VPN, and site-to-site VPN connectivity. RRAS can function as a software router supporting RIP, OSPF (through third-party plugins), BGP, and static routes; as a dial-up […]

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Common Problems 112539

Windows Server 2019 — SMB signing mismatch causes slow file transfers — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 30 May 2026 Affected versions: Windows Server 2019 📖 ~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 Install Jenkins on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Install Jenkins on Windows Server 2012 R2

How to Install Jenkins on Windows Server 2012 R2 Jenkins is one of the most widely adopted open-source automation servers in the industry, enabling organizations to build, test, and deploy software with repeatable, auditable pipelines. On Windows Server 2012 R2, Jenkins runs as a Windows service on top of the Java Runtime Environment, integrating naturally […]

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Arch Linux — wesnoth — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — wesnoth — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201807-15 Related CVEs: CVE-2018-1999023 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1.14.3-1. Fixed in: 1.14.4-1. Group: AVG-741. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 12 — openvpn-polarssl — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — openvpn-polarssl — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenVPN — out-of-bounds write in legacy key-method 1 Related CVEs: CVE-2017-12166 CVE-2017-7478 CVE-2017-7479 CVE-2017-7508 CVE-2017-7512 CVE-2017-7520 CVE-2017-7521 CVE-2017-7522 Upstream summary: Steffan Karger reports: The bounds check in read_key() was performed […]

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How to Configure Hyper-V Virtual Networking on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Hyper-V Virtual Networking on Windows Server 2019

Introduction to Hyper-V Virtual Networking on Windows Server 2019 Hyper-V virtual networking is the fabric that connects virtual machines to each other, to the physical network, and to the Hyper-V host. Windows Server 2019 introduces several significant networking improvements over previous versions, including support for Software Defined Networking (SDN), the Virtual Filtering Platform (VFP) extension, […]

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