Cpu Memory

How to Configure Network Bridging on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Network Bridging on FreeBSD 13

Introduction Deploying configure network bridging on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]

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How to Configure Postfix Mail Server on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Postfix Mail Server on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure postfix mail server on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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How to Manage Systemd Services with systemctl on Linux: Complete Guide (2025–2026) — step-by-step tutorial on Progressive Robot

How to Manage Systemd Services with systemctl on Linux: Complete Guide (2025–2026)

Manage systemd services with systemctl is one of the most essential skills for any Linux system administrator or DevOps engineer in 2025–2026. Since systemd became the default init system on virtually all major distributions (Ubuntu, Debian, Fedora, CentOS Stream, Rocky Linux, AlmaLinux, and more), the systemctl command is now the central tool for controlling services, checking statuses, modifying boot behavior, and troubleshooting.

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How to Configure OpenVPN Server on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure OpenVPN Server on FreeBSD 13

Introduction How to Configure OpenVPN Server on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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How to Install and Secure Redis on Ubuntu: Complete Guide (2025–2026) — step-by-step tutorial on Progressive Robot

How to Install and Secure Redis on Ubuntu: Complete Guide (2025–2026)

In 2025–2026, installing and securing Redis on Ubuntu is a critical task for developers and sysadmins using Redis as a fast in-memory cache, session store, message broker, or real-time data engine. By default, Redis listens on all interfaces without authentication—leaving it vulnerable if port 6379 is exposed. This step-by-step guide shows you exactly how to install and secure Redis on Ubuntu (22.04 LTS, 24.04 LTS, and later), including binding to localhost, setting a strong password (or ACLs), renaming/disabling dangerous commands, and verifying everything works.

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How to Install Ansible and Manage Windows Servers with Ansible on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Install Ansible and Manage Windows Servers with Ansible on Windows Server 2025

How to Install Ansible and Manage Windows Servers with Ansible on Windows Server 2025 Ansible is an agentless automation platform that manages remote systems by pushing configuration over existing protocols. On Linux targets Ansible uses SSH; on Windows targets it uses WinRM (Windows Remote Management), the native Windows remoting protocol. This means Windows Server 2025 […]

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How to Install and Configure BIND9 DNS Server on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install and Configure BIND9 DNS Server on FreeBSD 13

Introduction How to Install and Configure BIND9 DNS Server on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf […]

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How to Configure GitHub Actions Self-Hosted Runner on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Configure GitHub Actions Self-Hosted Runner on Windows Server 2025

How to Configure a GitHub Actions Self-Hosted Runner on Windows Server 2025 GitHub Actions self-hosted runners let you execute workflow jobs on your own infrastructure instead of GitHub’s cloud-hosted runners. For teams building Windows applications, running integration tests against local databases, or working in air-gapped environments, a self-hosted runner on Windows Server 2025 is the […]

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PyTorch DataLoader Tutorial: Complete Guide to Dataset, DataLoader, Custom Datasets, Transforms, and Efficient Loading (2025-2026 Best Practices) — step-by-step tutorial on Progressive Robot

PyTorch DataLoader Tutorial: Complete Guide to Dataset, DataLoader, Custom Datasets, Transforms, and Efficient Loading (2025-2026 Best Practices)

In deep learning with PyTorch, efficient data handling is often the biggest bottleneck during model training. Poor data pipelines can slow down training dramatically—even more than model complexity or hardware limitations. PyTorch’s Dataset and DataLoader classes provide powerful, flexible abstractions to handle loading, preprocessing, batching, shuffling, augmentation, and multi-worker parallel loading seamlessly.

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How to Set Up VLAN Tagging on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up VLAN Tagging on FreeBSD 13

Introduction How to Set Up VLAN Tagging on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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