VPN

How to Install Netdata on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Netdata on RHEL 7

How to Install Netdata on RHEL 7 Netdata is a real-time performance monitoring agent that delivers per-second metrics with zero configuration on most Linux systems. Unlike heavier monitoring solutions that scrape on 15-second or 1-minute intervals, Netdata collects and stores data every second, making it ideal for diagnosing transient performance problems that would be invisible […]

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How to Set Up a Certificate Authority with OpenSSL on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a Certificate Authority with OpenSSL on RHEL 7

How to Set Up a Certificate Authority with OpenSSL on RHEL 7 A Private Certificate Authority (CA) is essential infrastructure for any organization that needs to issue and manage TLS certificates for internal services, VPNs, mutual TLS authentication, or code signing — without relying on commercial CAs or exposing internal hostnames to the public internet. […]

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How to Install and Configure OpenVPN on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure OpenVPN on RHEL 7

How to Install and Configure OpenVPN on RHEL 7 OpenVPN is one of the most widely deployed VPN solutions in the enterprise, valued for its flexibility, strong encryption, and compatibility across nearly every operating system. On RHEL 7, OpenVPN is not included in the base repositories but is available from EPEL. Building a proper PKI […]

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How to Set Up WireGuard VPN on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up WireGuard VPN on RHEL 7

How to Set Up WireGuard VPN on RHEL 7 WireGuard is a modern, high-performance VPN protocol built directly into the Linux kernel (from 5.6 onward) and available as a DKMS module on older kernels like those shipped with RHEL 7. Compared to OpenVPN and IPsec, WireGuard has a dramatically smaller codebase, faster handshake times, and […]

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How to Harden SSH on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Harden SSH on RHEL 7

How to Harden SSH on RHEL 7 SSH (Secure Shell) is the primary remote administration protocol for RHEL 7 servers, and by default its configuration leaves several attack vectors open. Brute-force attacks against exposed SSH ports are constant on any internet-facing host, making SSH hardening one of the first tasks every RHEL 7 administrator should […]

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How to Set Up a PPTP VPN Server on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up a PPTP VPN Server on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up a pptp vpn server 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 […]

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How to Set Up a Kubernetes Dashboard on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a Kubernetes Dashboard on RHEL 7

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 […]

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How to Configure StrongSwan IPsec on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure StrongSwan IPsec on Debian 9

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 […]

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How to Configure OpenVPN Server on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure OpenVPN Server on Debian 9

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 […]

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How to Install Xdebug for PHP on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Xdebug for PHP on RHEL 7

How to Install Xdebug for PHP on RHEL 7 Xdebug is the de facto debugging and profiling extension for PHP. It transforms PHP development from a cycle of var_dump() statements into a proper interactive debugging experience: you can set breakpoints, step through code line by line, inspect variable values at runtime, and generate detailed execution […]

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