IT Links.
Useful places to start.

minikube

Run a local Kubernetes cluster for learning and application testing.

• Windows
• macOS
• Linux

Requires a supported container or virtual-machine driver.

K3s

Deploy a lightweight Kubernetes distribution on lab, edge, or server hosts.

• Linux

OpenTofu

Provision infrastructure from declarative configuration files.

• Windows
• macOS
• Linux

Cloud provider resource charges are separate.

Ansible Core

Automate server configuration and repeatable administration with playbooks.

• Linux
• macOS

The control node uses Linux or macOS; Windows targets can be managed remotely.

Pulumi CLI

Define and deploy infrastructure using programming languages.

• Windows
• macOS
• Linux

The CLI supports self-managed state; hosted services and infrastructure can cost extra.

SOPS

Encrypt sensitive fields in YAML, JSON, ENV, and other configuration files.

• Windows
• macOS
• Linux

External key-management services may have separate costs.

Prometheus

Collect time-series metrics and evaluate alerting rules for services and hosts.

• Windows
• macOS
• Linux

Requires configuration and storage.

Grafana OSS

Build dashboards for metrics, logs, and supported data sources.

• Windows
• macOS
• Linux

Choose OSS; Grafana Cloud and Enterprise features are separate.

Zabbix

Monitor servers, networks, and applications using a self-hosted monitoring platform.

• Linux

Server runs on Linux; agents support additional platforms.

Icinga 2

Schedule infrastructure checks and generate alerts for service availability.

• Linux

Requires server configuration; Windows agents are also available.

Nagios Core

Monitor hosts and services with the community monitoring engine and plugins.

• Linux

Core is free; Nagios XI is a separate commercial product.

Uptime Kuma

Monitor HTTP, TCP, DNS, and other services with a self-hosted status dashboard.

• Linux
• Windows
• macOS

Run with supported Node.js or a container deployment.

Netdata Community

Inspect host and application metrics with a real-time monitoring agent.

• Linux
• macOS

The local community agent is free; hosted and enterprise features have separate plans.

btop

View CPU, memory, disk, network, and process activity in a terminal dashboard.

• Linux
• macOS

htop

Inspect and manage processes using an interactive terminal process viewer.

• Linux
• macOS

Glances

Watch system resources in a terminal or web interface.

• Windows
• macOS
• Linux

Some metrics and plugins depend on operating system support.

nginx

Serve websites and reverse-proxy application traffic with the open-source web server.

• Windows
• macOS
• Linux

nginx Plus is a separate commercial product; Windows has platform limitations.

Apache HTTP Server

Host websites and reverse-proxy applications with a modular HTTP server.

• Windows
• macOS
• Linux

Official releases provide source; use trusted OS packages or build for your platform.

Caddy

Serve sites and reverse-proxy applications with automatic HTTPS support.

• Windows
• macOS
• Linux

Additional plugins may have their own terms.

Traefik Proxy

Route application traffic to containers and services using dynamic configuration.

• Linux

The open-source Proxy is free; commercial offerings are separate.

HAProxy

Load-balance TCP and HTTP services and proxy traffic between application servers.

• Linux

Community edition; enterprise offerings are separate.

lighttpd

Run a lightweight web server for sites and supported application backends.

• Linux

Use the official download links or your distribution package manager.

Squid

Deploy a caching HTTP proxy for controlled network access and traffic management.

• Linux

Requires proxy access-control configuration.

BIND 9

Operate authoritative or recursive DNS services with ISC BIND.

• Linux

Set up zone data and recursion access controls for your environment.