Package Management

Windows Server 2019 — KB5030271 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5030271 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5030271 • MSRC update-guide entry Related CVEs: CVE-2023-38161 CVE-2023-38152 CVE-2023-38144 CVE-2023-38143 CVE-2023-38142 CVE-2023-38141 CVE-2023-38139 CVE-2023-36804  +2 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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Ubuntu 20.04 — ecdsautils — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — ecdsautils — vulnerability — patch and remediation guide

  • March 11, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 11 March 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6239-1 Related CVEs: CVE-2022-24884 Upstream summary: It was discovered that ECDSA Util did not properly verify certain signature values. An attacker could possibly use this issue to bypass signature verification. […]

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How to Configure PAM Authentication on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure PAM Authentication on IBM AIX 7.1

  • March 11, 2023
  • IBM AIX
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Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure pam authentication on ibm aix 7.1 on IBM […]

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How to Set Up ClamAV Antivirus on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up ClamAV Antivirus on Oracle Linux 9

Introduction Setting up set up clamav antivirus on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up ClamAV Antivirus on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to […]

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CentOS Stream 9 — opensc — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — opensc — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • March 11, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 11 March 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2024:0966 Related CVEs: CVE-2023-5992 CVE-2023-40660 CVE-2023-40661 CVE-2023-4535 CVE-2023-2977 Upstream summary: The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic […]

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SLES 12 — libjbig2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libjbig2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • March 11, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 11 March 2023 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2013-6369 CVE-2022-1210 Upstream summary: Stack-based buffer overflow in the jbg_dec_in function in libjbig/jbig.c in JBIG-KIT before 2.1 allows remote attackers to cause a denial of […]

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Oracle Linux 8 — libXpm — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libXpm — vulnerability — patch and remediation guide (ELSA-2023-0379)

  • March 11, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 11 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0379 Related CVEs: CVE-2022-4883 CVE-2022-46285 CVE-2022-44617 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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How to Install OpenVPN on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install OpenVPN on FreeBSD 12

  • March 11, 2023
  • FreeBSD
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Introduction Deploying install openvpn on freebsd 12 on a FreeBSD 12 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 + […]

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How to Install Zabbix on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Zabbix on RHEL 9

  • March 11, 2023
  • Linux
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Zabbix is a mature, enterprise-grade open-source monitoring solution capable of tracking thousands of servers, virtual machines, network devices, and applications from a single web interface. It supports agent-based and agentless monitoring, flexible alerting, and detailed graphing out of the box. This tutorial installs Zabbix 6.4 on RHEL 9 using MySQL (MariaDB) as the backend database […]

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

Oracle Linux 9 — keylime — vulnerability — patch and remediation guide (ELSA-2022-8444)

  • March 11, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 11 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-8444 Related CVEs: CVE-2022-3500 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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