Storage Disk

How to Monitor System Resources with htop, top and vmstat on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Monitor System Resources with htop, top and vmstat on RHEL 7

How to Monitor System Resources with htop, top and vmstat on RHEL 7 Effective system monitoring is the foundation of proactive administration. Whether you are troubleshooting a performance complaint, capacity planning for a growing workload, or simply verifying that a server is running within normal parameters, having command-line resource monitoring tools at your fingertips is […]

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How to Create and Manage Swap Space on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Create and Manage Swap Space on RHEL 7

How to Create and Manage Swap Space on RHEL 7 Swap space is a designated area on disk that the Linux kernel uses as an overflow when physical RAM is exhausted. While swap is not a substitute for adequate RAM — disk I/O is orders of magnitude slower than memory access — it is a […]

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How to Configure GitHub Actions Self-Hosted Runner on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure GitHub Actions Self-Hosted Runner on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up configure github actions self-hosted runner on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully […]

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How to Write Ansible Playbooks for Debian 10 Systems — step-by-step Debian 10 tutorial on Progressive Robot

How to Write Ansible Playbooks for Debian 10 Systems

Introduction This guide explains how to Write Ansible Playbooks for Debian 10 Systems on Debian 10 Buster. Debian Buster 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 10 install with the […]

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How to Set Up SSH Key-Based Authentication on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up SSH Key-Based Authentication on RHEL 7

How to Set Up SSH Key-Based Authentication on RHEL 7 SSH key-based authentication replaces password logins with a cryptographic key pair: a private key that stays on your local machine and a public key that you install on the remote server. When you connect, the server challenges your SSH client to prove it holds the […]

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How to Configure the Firewall on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure the Firewall on RHEL 7

How to Configure the Firewall on RHEL 7 Red Hat Enterprise Linux 7 ships with firewalld as its default firewall management solution. Unlike its predecessor iptables, which required you to manage chains and rules as a flat list, firewalld introduces the concept of zones — named trust levels that you assign to network interfaces and […]

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How to Configure Jenkins Pipelines on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Jenkins Pipelines on Debian 10

Introduction How to Configure Jenkins Pipelines on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster 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 10. This […]

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How to Install Jenkins on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Jenkins on Debian 10

Introduction How to Install Jenkins on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster 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 10. This tutorial […]

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How to Set Up Consul on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Consul on Debian 10

Introduction How to Set Up Consul on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster 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 10. This […]

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How to Configure Docker with TLS Authentication on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Docker with TLS Authentication on Debian 10

Introduction Deploying configure docker with tls authentication 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. Prerequisites Before […]

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