Cpu Memory

How to Set Up Cron Jobs and Scheduled Tasks on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Cron Jobs and Scheduled Tasks on Debian 12

Introduction How to Set Up Cron Jobs and Scheduled Tasks 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 […]

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How to Manage Users and Groups on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Manage Users and Groups on Debian 12

Introduction Deploying manage users and groups 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 Configure Swap Space on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Swap Space on Debian 12

Introduction This guide explains how to Configure Swap Space on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with the standard […]

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How to Install and Configure OpenLiteSpeed Web Server on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure OpenLiteSpeed Web Server on RHEL 8

OpenLiteSpeed is the open-source edition of LiteSpeed Web Server and delivers significantly higher PHP throughput than Apache or standard Nginx for WordPress and other PHP-heavy applications. Unlike traditional web servers, OpenLiteSpeed uses its own event-driven architecture and a tight integration with the LSPHP interpreter to handle thousands of concurrent connections with minimal RAM. On RHEL […]

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How to Set Up Varnish Cache as a Reverse Proxy on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up Varnish Cache as a Reverse Proxy on RHEL 8

Varnish Cache is a high-performance HTTP accelerator designed to sit in front of web servers and serve cached responses at near-wire speed, offloading PHP and database work from your backend. On RHEL 8, Varnish is packaged in the default AppStream repository, making installation straightforward. This guide shows how to install Varnish, write a VCL configuration […]

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How to Configure Nginx FastCGI Caching on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Nginx FastCGI Caching on RHEL 8

Nginx FastCGI caching dramatically reduces PHP processing load by storing rendered responses on disk and serving them directly to subsequent visitors. On RHEL 8, combining Nginx with a PHP-FPM backend and a well-configured cache can cut backend response times by 80–95% for cacheable pages. This tutorial walks through configuring the fastcgi_cache_path directive, defining cache keys, […]

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How to Configure Static IP on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Static IP on Debian 12

Introduction Deploying configure static ip 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 Set Up a Tor Relay on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up a Tor Relay on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up set up a tor relay on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting […]

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How to Configure SPF and DMARC Records on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure SPF and DMARC Records on Debian 13

Introduction How to Configure SPF and DMARC Records on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie 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 OpenDKIM with Postfix on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure OpenDKIM with Postfix on Debian 13

Introduction How to Configure OpenDKIM with Postfix on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie 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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