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How To Contribute to Open Source: Getting Started with Git — step-by-step DevOps tutorial on Progressive Robot

How To Contribute to Open Source: Getting Started with Git

Open-source projects that are hosted in public repositories benefit from contributions made by the broader developer community, and are typically managed through Git. This tutorial will discuss the benefits of contributing to open-source projects, and go over installing and setting up Git so that you can contribute to software projects.

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SLES 12 — libldap — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libldap — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 2 December 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1018-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-29155 CVE-2020-12243 CVE-2020-25692 CVE-2020-36221 CVE-2020-36222 CVE-2020-36223 CVE-2020-36224 CVE-2020-36225  +12 more Upstream summary: In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability […]

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How to Set Up Always On VPN with Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Always On VPN with Windows Server 2022

Always On VPN vs DirectAccess: Why the Upgrade Matters Always On VPN (AOVPN) is Microsoft’s modern replacement for DirectAccess, introduced with Windows 10 and Windows Server 2016. While DirectAccess provided transparent remote access using IPv6-over-IPv4 tunneling and IPsec, it was tightly coupled to Active Directory group policy, required IPv6 infrastructure, only supported domain-joined Windows Enterprise […]

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Common Problems 116985

Ubuntu 22.04 LTS – Kubelet node NotReady from cgroup mismatch – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 December 2022 Affected versions: Ubuntu 22.04 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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IBM AIX 7.2 — CVE-2022-40750 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2022-40750 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 1 December 2022 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2022-40750, IBM Support Bulletin CVE: CVE-2022-40750 NVD summary: IBM WebSphere Application Server 8.5, and 9.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web […]

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FreeBSD 12 — py37-slixmpp — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py37-slixmpp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 December 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-slixmpp — incomplete SSL certificate validation Related CVEs: CVE-2019-1000021 CVE-2022-45197 Upstream summary: Slixmpp before 1.8.3 lacks SSL Certificate hostname validation in XMLStream, allowing an attacker to pose as any server […]

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Common Problems 115628

RHEL 7 auditd backlog overflow causing dropped security events

🟠 High   ⏱ 5–30 min  Last verified: 1 December 2022 Affected versions: RHEL 7 📖 ~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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Common Problems 111809

Windows Server 2022 — BitLocker Recovery Key Prompt Appears at Every Boot — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 December 2022 Affected versions: Windows Server 2022 📖 ~1 min read Table of contents Symptom & Impact Quick Checks Deep Diagnosis Primary Fix Verification Prevention & Hardening Symptom & Impact Servers repeatedly request BitLocker recovery keys on restart, delaying automated patch cycles and remote operations. This […]

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Debian 11 — openscenegraph — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — openscenegraph — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-0280 Upstream summary: Array index error in Jan Eric Kyprianidis lib3ds 1.x, as used in Google SketchUp 7.x before 7.1 M2, allows remote attackers to cause a denial […]

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How to Configure Oracle RAC on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Oracle RAC on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure oracle rac on IBM AIX 7.3 with practical […]

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