Kernel Drivers

Oracle Linux 8 — kernel security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-1769)

  • February 14, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 14 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1769 Related CVEs: CVE-2019-15221 CVE-2019-17055 CVE-2019-15099 CVE-2020-1749 CVE-2019-8980 CVE-2019-15090 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Install and Configure Rundeck on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Rundeck on Debian 9

  • February 13, 2022
  • Linux
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Introduction How to Install and Configure Rundeck on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. […]

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How to Set Up Minio Object Storage on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Minio Object Storage on Debian 11

  • February 13, 2022
  • Linux
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Introduction This guide explains how to Set Up Minio Object Storage on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with […]

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Initial Server Setup with CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

Initial Server Setup with CentOS Stream 9

  • February 12, 2022
  • CentOS
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Introduction Initial Server Setup with CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible and […]

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How to Contribute to AIX Open Source Community on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Contribute to AIX Open Source Community on IBM AIX 7.1

  • February 12, 2022
  • 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 contribute to aix open source community on ibm aix […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2024-12433)

  • February 12, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 12 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-12433 Related CVEs: CVE-2022-23816 CVE-2022-29901 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 Configure Fail2ban on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Fail2ban on CentOS Stream 9

  • February 10, 2022
  • CentOS
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Introduction How to Configure Fail2ban on CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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How to Set Up a Certificate Authority with OpenSSL on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up a Certificate Authority with OpenSSL on Debian 11

  • February 10, 2022
  • Linux
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Introduction How to Set Up a Certificate Authority with OpenSSL on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ […]

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How to Set Up CentOS Stream 9 for SAP Workloads — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up CentOS Stream 9 for SAP Workloads

  • February 9, 2022
  • CentOS
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Introduction How to Set Up CentOS Stream 9 for SAP Workloads on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

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How to Install and Configure Erlang on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Erlang on Debian 9

  • February 9, 2022
  • Linux
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Introduction How to Install and Configure Erlang on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. […]

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