Kernel Drivers

How to Install Java (OpenJDK 21) on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install Java (OpenJDK 21) on FreeBSD 12

Introduction How to Install Java (OpenJDK 21) on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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How to Set Up GlusterFS on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up GlusterFS on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up glusterfs on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up GlusterFS on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2021-9115)

🟠 High   ⏱ 15–60 min  Last verified: 24 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9115 Related CVEs: CVE-2021-27364 CVE-2021-27365 CVE-2021-27363 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 Deploy a Django Application on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Deploy a Django Application on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying deploy a django application on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Deploy a Django Application on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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How to Install RabbitMQ on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install RabbitMQ on FreeBSD 12

Introduction How to Install RabbitMQ on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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How to Configure SSL/TLS with OpenSSL on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure SSL/TLS with OpenSSL on FreeBSD 13

Introduction How to Configure SSL/TLS with OpenSSL on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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How to Configure Corosync on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Corosync on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure corosync on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Corosync on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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How to Automate CentOS Stream 9 with Ansible — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Automate CentOS Stream 9 with Ansible

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying automate centos stream 9 with ansible both straightforward and auditable. This tutorial covers the complete procedure for how to Automate CentOS Stream 9 with Ansible, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2021-9565)

🟠 High   ⏱ 15–60 min  Last verified: 18 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9565 Related CVEs: CVE-2021-3653 CVE-2021-3656 CVE-2021-3744 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 Resource Limits in Kubernetes on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Resource Limits in Kubernetes on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure resource limits in kubernetes on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Resource Limits in Kubernetes on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the […]

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