September 2020 - Page 16 of 59

How To Configure BIND as a Private Network DNS Server on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Configure BIND as a Private Network DNS Server on Ubuntu 20.04

In this tutorial, you will set up an internal DNS server using two Ubuntu 20.04 servers. You will use the BIND name server software (BIND9) to resolve private hostnames and private IP addresses. This provides a central way to manage your internal hostnames and private IP addresses, which is indispensable when your environment expands to more than a few hosts.

Read more
Oracle Linux 8 — nodejs:16 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:16 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-5360)

🟠 High   ⏱ 15–60 min  Last verified: 22 September 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5360 Related CVEs: CVE-2022-25883 CVE-2023-32559 CVE-2023-32002 CVE-2023-32006 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

Read more
How to Implement Mandatory Access Control on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Implement Mandatory Access Control on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying implement mandatory access control on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Implement Mandatory Access Control on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

Read more
openSUSE Tumbleweed — cni-plugins — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — cni-plugins — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:1049-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-10749 Upstream summary: A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows malicious containers in Kubernetes clusters to perform man-in-the-middle […]

Read more
Common Problems 113526

Windows Server 2012 R2 – ACPI chipset driver conflict triggers unexpected reboots – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 22 September 2020 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 […]

Read more
How to Use nmon for Performance Monitoring on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use nmon for Performance Monitoring on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use nmon for performance monitoring on ibm aix 7.2 […]

Read more
QUIC & HTTP/3: Open Standards and Open Source Code — step-by-step DevOps tutorial on Progressive Robot

QUIC & HTTP/3: Open Standards and Open Source Code

This talk is intended to help jumpstart anyone with an interest in Web or Internet communications on the exciting new protocols QUIC and HTTP/3. It attempts to shed light on the sometimes-confusing world of Internet standards development, hopefully revealing that the tools and processes that are strikingly familiar to typical software development. Familiarity with networking principles such as TCP, UDP and TLS will be beneficial but is not a requirement for understanding.

Read more
FreeBSD 12 — phpMyAdmin5-php — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — phpMyAdmin5-php — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 September 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: phpMyAdmin — XSS vulnerability in drag-and-drop upload Related CVEs: CVE-2020-5504 Upstream summary: phpMyAdmin Team reports: PMASA-2023-1 XSS vulnerability in drag-and-drop upload Table of contents Symptom & Impact Environment & Reproduction […]

Read more
CHAT