Capacity Planning

Common Problems 121024

Debian 10 – kernel or grub updates fail because /boot is full

🟠 High   ⏱ 5–30 min  Last verified: 28 February 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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Common Problems 115482

Root filesystem reaches 100 percent usage

🟡 Medium   ⏱ 5–30 min  Last verified: 26 February 2020 📖 ~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 Configure Azure Backup Agent on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Azure Backup Agent on Windows Server 2012 R2

How to Configure Azure Backup Agent on Windows Server 2012 R2 The Microsoft Azure Backup Agent (also known as the MARS agent — Microsoft Azure Recovery Services) enables you to back up files, folders, and system state directly from Windows Server 2012 R2 to Microsoft Azure Recovery Services Vault, without requiring Azure virtual machines or […]

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Common Problems 118561

Ubuntu 16.04 LTS – LightDM login loop returns to greeter repeatedly – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 February 2020 Affected versions: Ubuntu 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 Configure IPv6 Networking on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure IPv6 Networking on RHEL 8

IPv6 adoption has accelerated significantly as IPv4 address exhaustion becomes more acute, and most modern Linux distributions including RHEL 8 ship with full IPv6 support enabled by default. Configuring IPv6 on RHEL 8 requires working with nmcli for network interface configuration, firewalld for controlling IPv6 traffic including ICMPv6, and optionally adjusting service configurations to bind […]

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Common Problems 121105

Debian 10 Journald Grows Too Large and Consumes Disk

🟡 Medium   ⏱ 5–30 min  Last verified: 17 February 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 Install Portainer for Docker Management on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Portainer for Docker Management on RHEL 7

How to Install Portainer for Docker Management on RHEL 7 Portainer is an open-source container management UI that puts a graphical interface in front of Docker, Swarm, and Kubernetes. Instead of memorising dozens of docker subcommands, Portainer lets you inspect containers, manage images and volumes, view real-time logs, open an in-browser terminal, and deploy stacks […]

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How to Monitor Windows Server 2016 with Zabbix — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Monitor Windows Server 2016 with Zabbix

How to Set Up Windows Server 2016 with Zabbix Zabbix is a powerful open-source enterprise monitoring platform that supports monitoring of servers, virtual machines, applications, databases, cloud services, and network devices. It provides active and passive check modes, auto-discovery, distributed monitoring, sophisticated alerting with escalation policies, and rich visualization through dashboards and graphs. Integrating Windows […]

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Common Problems 118496

Ubuntu 16.04 LTS – /var reaches 100 percent and services fail

🟠 High   ⏱ 5–30 min  Last verified: 12 February 2020 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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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How to Install Terraform on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Install Terraform on Windows Server 2012 R2

How to Install Terraform on Windows Server 2012 R2 Terraform is HashiCorp’s infrastructure-as-code tool that enables you to define, provision, and manage cloud and on-premises infrastructure using declarative configuration files. On Windows Server 2012 R2, Terraform runs as a standalone binary with no installation wizard or service required — you simply extract the executable and […]

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