Storage Disk

How to Install and Use Fluentd for Log Aggregation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Use Fluentd for Log Aggregation on RHEL 7

How to Install and Use Fluentd for Log Aggregation on RHEL 7 Log aggregation is a critical discipline in any production environment: raw log files scattered across dozens of servers are nearly impossible to correlate during an incident. Fluentd, distributed as the td-agent package by Treasure Data, is an open-source data collector written in Ruby […]

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

How to Install Fluentd on FreeBSD 12

Introduction This guide explains how to Install Fluentd on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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

How to Install Docker Engine on FreeBSD 12

Introduction This guide explains how to Install Docker Engine on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege […]

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Common Problems 112447

Windows Server 2019 – NVMe stornvme timeout storms trigger disk failover – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 April 2020 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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Common Problems 112986

Windows Server 2016 MPIO Path Imbalance Sends Traffic Over Single Storage Link – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 16 April 2020 Affected versions: Windows Server 2016 📖 ~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 Configure Nginx as a TCP/UDP Load Balancer on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Nginx as a TCP/UDP Load Balancer on Debian 10 (ON-DEBIAN-10)

Introduction Deploying configure nginx as a tcp/udp load balancer on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. […]

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How to Configure PgBouncer Connection Pooling on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure PgBouncer Connection Pooling on FreeBSD 12

Introduction Deploying configure pgbouncer connection pooling 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 […]

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Common Problems 121205

Debian 10 Logrotate Not Rotating Application Logs

🟡 Medium   ⏱ 5–30 min  Last verified: 14 April 2020 Affected versions: Debian 10 📖 ~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 Set Up OpenTelemetry Collector on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up OpenTelemetry Collector on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up opentelemetry collector on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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How to Set Up ArgoCD on Kubernetes on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up ArgoCD on Kubernetes on FreeBSD 12

Introduction This guide explains how to Set Up ArgoCD on Kubernetes on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for […]

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