How to Configure Jenkins Pipelines and Jenkinsfile on RHEL 7 Jenkins Pipelines transform your CI/CD process from a series of fragile, click-configured jobs into version-controlled, repeatable automation defined entirely in code. A Jenkinsfile lives alongside your application source, meaning every change to the build process goes through the same review workflow as application code. This […]
Introduction How to Set Up Dovecot IMAP Server on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 […]
How to Install Jenkins on RHEL 7 Jenkins is the leading open-source automation server, used by development teams worldwide to build, test, and deploy software continuously. On Red Hat Enterprise Linux 7, getting Jenkins running requires a few deliberate steps: installing the correct version of Java, adding the official Jenkins repository, starting the service, and […]
Introduction This guide explains how to Configure Postfix Mail 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 with the […]
How to Set Up a Kubernetes Dashboard on RHEL 7 The Kubernetes Dashboard is a web-based UI that provides a graphical interface for managing cluster resources, viewing workload status, inspecting pod logs, executing commands inside containers, and monitoring resource utilisation. While kubectl provides full cluster control from the command line, the Dashboard is invaluable for […]
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install and configure squid proxy 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 […]
How to Configure Docker Daemon TLS Encryption on RHEL 7 By default, the Docker daemon on RHEL 7 listens only on a Unix socket at /var/run/docker.sock, which limits access to processes on the same host. When you need to manage Docker remotely — from a CI server, a centralised management host, or a deployment automation […]
Introduction How to Configure StrongSwan IPsec on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. This […]
Introduction Deploying configure openvpn server on debian 9 on a Debian 9 Stretch 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 9 […]
How to Install and Use Skopeo for Container Image Management on RHEL 7 Skopeo is a command-line utility for performing operations on container images and image registries without requiring a running Docker daemon. It is part of the Open Container Initiative (OCI) ecosystem championed by Red Hat and is included in the standard RHEL extras […]
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