DNS

Common Problems 114994

RHEL 8 NFS Mount Timeout During Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 16 December 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 & Cross-Refs References & Further […]

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How to Deploy a Node.js App with PM2 on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Deploy a Node.js App with PM2 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 deploy a node.js app with pm2 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 […]

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How to Configure SSL/TLS on Nginx on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure SSL/TLS on Nginx on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure ssl/tls on nginx on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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How to Configure a Python uWSGI Application Server on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure a Python uWSGI Application Server on Debian 9

Introduction This guide explains how to Configure a Python uWSGI Application Server on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install […]

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Common Problems 118115

Ubuntu 18.04 LTS – OpenSSL legacy protocol mismatch breaks outbound integrations

🟡 Medium   ⏱ 5–30 min  Last verified: 14 December 2019 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]

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Common Problems 118608

Ubuntu 16.04 LTS Journald Log Growth Consumes Disk

🟡 Medium   ⏱ 5–30 min  Last verified: 14 December 2019 Affected versions: 16.04 LTS 📖 ~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 Hyper-V Replication on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Hyper-V Replication on Windows Server 2012 R2

How to Set Up Hyper-V Replication on Windows Server 2012 R2 Hyper-V Replica is a built-in disaster recovery feature in Windows Server 2012 R2 that continuously replicates virtual machines from a primary Hyper-V host to a replica host over the network. In the event of a primary host failure, you can fail over to the […]

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Common Problems 113095

Windows Server 2016 – Just-in-Time admin elevation fails through PAM workflows – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 December 2019 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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Uma Introdução ao Serviço de DNS do Kubernetes — step-by-step Kubernetes tutorial on Progressive Robot

Uma Introdução ao Serviço de DNS do Kubernetes

object storage é um serviço de armazenamento de objetos que torna mais fácil e econômico armazenar e fornecer grandes quantidades de dados. Spaces individuais podem ser criados e colocados em uso rapidamete, sem necessidade de configuração adicional. Neste tutorial,…

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Common Problems 119048

Ubuntu 14.04 LTS High CPU by kswapd0 and Severe Memory Thrashing

🟡 Medium   ⏱ 5–30 min  Last verified: 12 December 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 & Cross-Refs References & Further […]

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