Operations

How to Set Up HAProxy Load Balancer on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up HAProxy Load Balancer on Debian 9

Introduction How to Set Up HAProxy Load Balancer 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 […]

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How to Configure MySQL Group Replication on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure MySQL Group Replication on RHEL 7

How to Configure MySQL Group Replication on RHEL 7 MySQL Group Replication, introduced in MySQL 5.7.17, is a plugin-based high-availability mechanism that enables a set of MySQL servers to form a replication group where all writes are coordinated through a distributed consensus algorithm (Paxos-based). Unlike classic primary-replica replication, Group Replication provides built-in automatic failover: if […]

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How to Install Lighttpd on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Lighttpd on Debian 9

Introduction This guide explains how to Install Lighttpd 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 standard repositories […]

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How to Set Up Nginx as a Reverse Proxy on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Nginx as a Reverse Proxy on Debian 9

Introduction Deploying set up nginx as a reverse proxy 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. […]

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How to Configure MySQL Primary-Replica Replication on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure MySQL Primary-Replica Replication on RHEL 7

How to Configure MySQL Primary-Replica Replication on RHEL 7 MySQL replication allows data written to one server (the primary, formerly called master) to be automatically copied to one or more other servers (replicas, formerly called slaves). This is one of the most widely deployed MySQL high-availability techniques: it provides read-scale-out by offloading SELECT queries to […]

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

How to Configure Nginx Server Blocks on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure nginx server blocks 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 and […]

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

How to Install phpMyAdmin on RHEL 7

How to Install phpMyAdmin on RHEL 7 phpMyAdmin is a free, open-source web-based tool for administering MySQL and MariaDB databases through a browser interface. Rather than relying on the command line for every operation, phpMyAdmin lets you browse tables, run queries, manage users, import and export data, and monitor server status with a point-and-click UI. […]

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How to Install Nginx on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Nginx on Debian 9 (DEBIAN-9-2)

Introduction This guide explains how to Install Nginx 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 standard repositories […]

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

How to Install Redis on RHEL 7

How to Install Redis on RHEL 7 Redis is an open-source, in-memory data structure store used as a database, cache, message broker, and streaming engine. Its sub-millisecond response times make it the go-to solution for session caching, real-time leaderboards, pub/sub messaging, and rate limiting in high-performance web applications. On RHEL 7, Redis is available through […]

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How to Enable SSL/TLS with Let's Encrypt on Apache2 on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Enable SSL/TLS with Let’s Encrypt on Apache2 on Debian 9

Introduction How to Enable SSL/TLS with Let’s Encrypt on Apache2 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 […]

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