Tutorials

How to Configure Kubernetes RBAC on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Kubernetes RBAC on RHEL 8

Role-Based Access Control (RBAC) is the primary authorization mechanism in Kubernetes, allowing you to define exactly which users and service accounts can perform which actions on which resources. On RHEL 8 clusters this is especially important when multiple teams share the same cluster or when you need to grant applications only the permissions they need […]

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How to Set Up Open-iSCSI on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Open-iSCSI on Debian 12

Introduction Deploying set up open-iscsi on debian 12 on a Debian 12 Bookworm 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 you begin, […]

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How to Configure XFS File System on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure XFS File System on Debian 12

Introduction Deploying configure xfs file system on debian 12 on a Debian 12 Bookworm 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 Set Up Kubernetes Ingress with Nginx Ingress Controller on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up Kubernetes Ingress with Nginx Ingress Controller on RHEL 8

Kubernetes Ingress resources give you a single entry point for routing external HTTP and HTTPS traffic to services inside your cluster. On RHEL 8, the Nginx Ingress Controller is a popular choice because it integrates cleanly with bare-metal deployments and supports TLS termination, name-based virtual hosting, and path-based routing out of the box. This tutorial […]

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How to Set Up Snapshots with LVM on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Snapshots with LVM on Debian 12

Introduction Deploying set up snapshots with lvm on debian 12 on a Debian 12 Bookworm 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 […]

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How to Configure Kubernetes Persistent Volumes and Storage Classes on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Kubernetes Persistent Volumes and Storage Classes on RHEL 8

Stateful applications running in Kubernetes — databases, content management systems, message queues — need storage that persists beyond the lifecycle of any individual pod. Kubernetes solves this through two complementary abstractions: PersistentVolumes (PV), which represent actual storage capacity provisioned by an administrator or a storage provider, and PersistentVolumeClaims (PVC), which are requests for storage made […]

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How to Install Amanda Network Backup on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install Amanda Network Backup on Debian 12

Introduction How to Install Amanda Network Backup on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. […]

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How to Deploy an Application to Kubernetes on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Deploy an Application to Kubernetes on RHEL 8

Once your Kubernetes cluster is running on RHEL 8, the next essential skill is deploying and managing application workloads using the two most fundamental resource types: Deployments and Services. A Deployment describes the desired state of your application pods and ensures that the specified number of replicas are always running, performing rolling updates and self-healing […]

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How to Configure Bacula Backup Server on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Bacula Backup Server on Debian 12

Introduction Deploying configure bacula backup server on debian 12 on a Debian 12 Bookworm 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 you […]

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How to Install and Use Helm on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Use Helm on RHEL 8

Helm is the package manager for Kubernetes, allowing you to define, install, and upgrade even the most complex applications through reusable, versioned packages called charts. Rather than managing a collection of disconnected YAML manifests, Helm wraps them into a single chart with templating, default values, and lifecycle hooks. On RHEL 8 the installation is straightforward: […]

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