August 2021 - Page 59 of 69

FreeBSD 13 — linux-vieb — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-vieb — security advisory — 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: Vieb — Remote Code Execution via Visiting Untrusted URLs Upstream summary: Zhengyu Liu, Jianjia Yu, Jelmer van Arnhem report: We discovered a remote code execution (RCE) vulnerability in the latest […]

Read more
Common Problems 112909

Windows Server 2016 – Failover cluster loses quorum after witness outage – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 18 May 2026 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 […]

Read more
Swift init() — step-by-step DevOps tutorial on Progressive Robot

Swift init()

URL: https://www.progressiverobot.com/swift-init/ In this Swift tutorial, we'll be discussing an important concept, namely Swift init or Swift initialization. Initialization is what happens when we create an instance of some type. Swift init() Initialization is the process of preparing an instance of a class, structure, or enumeration for use. This process involves setting an initial value […]

Read more
How to Install Perl on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Perl on FreeBSD 13

Introduction Deploying install perl on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + […]

Read more
Ubuntu 20.04 — whoopsie — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — whoopsie — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4450-1 Related CVEs: CVE-2020-11937 CVE-2020-12135 CVE-2020-15570 Upstream summary: Seong-Joong Kim discovered that Whoopsie incorrectly handled memory. A local attacker could use this issue to cause Whoopsie to consume memory, resulting […]

Read more
CHAT