Filesystem

How to Configure Kubernetes Persistent Volumes on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Kubernetes Persistent Volumes on FreeBSD 13

Introduction How to Configure Kubernetes Persistent Volumes 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 Storage Spaces on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Storage Spaces on Windows Server 2012 R2

How to Configure Storage Spaces on Windows Server 2012 R2 Storage Spaces is a software-defined storage technology introduced with Windows Server 2012 and significantly enhanced in Windows Server 2012 R2. It allows administrators to group physical disk drives of varying types and sizes into a storage pool, then carve virtual disks — called storage spaces […]

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How to Manage Users and Groups on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Manage Users and Groups on FreeBSD 13

Introduction How to Manage Users and Groups 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 Harden the Linux Kernel with sysctl on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Harden the Linux Kernel with sysctl on RHEL 7

How to Harden the Linux Kernel with sysctl on RHEL 7 The Linux kernel exposes hundreds of tunable parameters through the /proc/sys/ virtual filesystem, and the sysctl utility provides a clean interface for reading and setting those values at runtime and persistently across reboots. Many of these parameters have direct security implications: they control whether […]

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How to Configure ZFS Encryption on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure ZFS Encryption on FreeBSD 13

Introduction How to Configure ZFS Encryption 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 filtering, […]

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Common Problems 112610

Windows Server 2019 PerfMon Shows High Split IO per Sec on Misaligned Virtual Disks – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 24 May 2021 Affected versions: Windows Server 2019 📖 ~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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How to Install cAdvisor for Container Monitoring on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install cAdvisor for Container Monitoring on FreeBSD 12

Introduction How to Install cAdvisor for Container Monitoring 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 […]

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How to Set Up a Certificate Authority with OpenSSL on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up a Certificate Authority with OpenSSL on FreeBSD 12

Introduction How to Set Up a Certificate Authority with OpenSSL 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, […]

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Common Problems 115468

RHEL 7 service httpd Fails with Permission Denied on Logs

🟡 Medium   ⏱ 5–30 min  Last verified: 8 May 2021 📖 ~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 & Cross-Refs References & Further […]

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