March 2023 - Page 23 of 72

CentOS Stream 9 — yajl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — yajl — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2023:6551 Related CVEs: CVE-2023-33460 CVE-2022-24795 Upstream summary: Yet Another JSON Library (YAJL) is a small event-driven (SAX-style) JSON parser written in ANSI C, and a small validating JSON generator. Security Fix(es): […]

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How to Configure BGP Routing with RRAS on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure BGP Routing with RRAS on Windows Server 2016

How to Set Up BGP Routing on Windows Server 2016 Border Gateway Protocol (BGP) is the routing protocol that powers the internet. It is a path-vector protocol used to exchange routing information between autonomous systems (AS). Windows Server 2016 includes a software-based BGP implementation as part of the Remote Access role, which can be used […]

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Oracle Linux 8 — prometheus-jmx-exporter — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — prometheus-jmx-exporter — vulnerability — patch and remediation guide (ELSA-2022-6820)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6820 Related CVEs: CVE-2022-25857 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Ubuntu 20.04にスワップ領域を追加する方法 — step-by-step Linux tutorial on Progressive Robot

Ubuntu 20.04にスワップ領域を追加する方法

アプリケーションのメモリ不足エラーを防ぐ方法の一つは、サーバーにスワップ領域を追加することです。このガイドでは、Ubuntu 20.04サーバーにスワップファイルを追加する方法を扱います。

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Oracle Linux 9 — 15 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — 15 — vulnerability — patch and remediation guide (ELSA-2023-4327)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4327 Related CVEs: CVE-2023-2455 CVE-2023-2454 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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FreeBSD 12 — mysql-connector-c++ — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mysql-connector-c++ — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL — Multiple vulnerabilities Related CVEs: CVE-2020-2752 CVE-2020-2875 CVE-2020-2922 CVE-2020-2933 CVE-2020-2934 CVE-2021-22946 CVE-2021-3712 CVE-2022-1941  +12 more Upstream summary: Oracle reports: This Critical Patch Update contains 37 new security patches, plus […]

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How to Set Up RADIUS Authentication on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up RADIUS Authentication on Windows Server 2022

Introduction to Fine-Grained Password Policies In legacy Active Directory deployments, a single password policy applied to all users within a domain through the Default Domain Policy GPO. This was limiting for organizations that needed stricter controls on privileged accounts such as domain administrators or service accounts while maintaining a more relaxed policy for regular users. […]

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An Introduction to Load Testing — step-by-step DevOps tutorial on Progressive Robot

An Introduction to Load Testing

In this article, we’ll talk about the server side of web performance optimization: how fast can your server respond to your user’s requests? We’ll review the general landscape of load testing, step through a plan to find your server’s maximum practical response rate, and discuss some options for open source load testing software.

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