Networking

How to Configure Kubernetes Ingress Controller on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Kubernetes Ingress Controller on Debian 11

  • October 17, 2022
  • Linux
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Introduction Deploying configure kubernetes ingress controller on debian 11 on a Debian 11 Bullseye 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. Prerequisites Ensure Debian […]

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Common Problems 120512

Debian 11: Network outage from ifupdown and NetworkManager conflict

  • October 15, 2022
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 15 October 2022 Affected versions: Debian 11 📖 ~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 Automate Debian 11 Server Provisioning with Ansible — step-by-step Debian 11 tutorial on Progressive Robot

How to Automate Debian 11 Server Provisioning with Ansible

  • October 15, 2022
  • Linux
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Introduction Deploying automate debian 11 server provisioning with ansible on a Debian 11 Bullseye 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. Prerequisites You will […]

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How to Configure IBM PowerVM Hypervisor on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure IBM PowerVM Hypervisor on IBM AIX 7.3

  • October 14, 2022
  • IBM AIX
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Introduction IBM AIX 7.3 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure ibm powervm hypervisor on IBM AIX 7.3 with […]

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How to Install and Configure RabbitMQ on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install and Configure RabbitMQ on RHEL 9

  • October 14, 2022
  • Linux
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RabbitMQ is a mature, battle-tested open-source message broker that implements the AMQP 0-9-1 protocol. It decouples application components by enabling asynchronous communication through exchanges, queues, and bindings. Producers publish messages to exchanges; exchanges route messages to queues based on routing rules (direct, topic, fanout, headers); consumers subscribe to queues and process messages independently of the […]

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Common Problems 121519

Debian 9 Temporary Failure Resolving During apt update

  • October 13, 2022
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 13 October 2022 Affected versions: Debian 9 📖 ~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 117989

Ubuntu 18.04 LTS Package Dependency Errors After Partial Upgrade

  • October 13, 2022
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 13 October 2022 Affected versions: 18.04 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 a PXE Boot Server on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up a PXE Boot Server on RHEL 9

  • October 13, 2022
  • Linux
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PXE (Preboot Execution Environment) booting allows machines to boot from the network and install an operating system without a physical installation medium. This is invaluable for data centres and labs where provisioning dozens or hundreds of machines manually is impractical. On RHEL 9, you can build a complete PXE infrastructure using TFTP for boot file […]

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How to Set Up Nagios4 on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Nagios4 on Debian 11

  • October 13, 2022
  • Linux
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Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up set up nagios4 on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and the […]

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How to Install and Configure Squid Proxy on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install and Configure Squid Proxy on Debian 11

  • October 12, 2022
  • Linux
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Introduction Deploying install and configure squid proxy on debian 11 on a Debian 11 Bullseye 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. Prerequisites Before […]

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