KProbe

By Karel Cermak | Karlosoft.

What is KProbe?

• KProbe is a lightweight, standalone monitoring system designed to run locally inside your network.
• It actively checks local devices – such as Wi-Fi access points, IP cameras, printers, and internal servers – using ping (ICMP) and HTTP requests.
• The status of these checks is exposed through a clean HTTP API, allowing you to easily integrate it with external monitoring dashboards like Uptime Kuma, Zabbix, or any custom tool of your choice.
• It is designed to be self-contained, easy to deploy, and runs completely independently on your local machine or server.

How Does It Work?

1. Deploy: Set up a small local server or VM running Linux (Ubuntu, Debian, CentOS, RHEL, Rocky Linux, or Fedora).
2. Install: Install KProbe using our native .deb or .rpm packages as detailed in FAQ.md.
3. Configure: Define the local devices and services you want to monitor.
4. Integrate: Point your favorite monitoring system (e.g., Uptime Kuma) to the KProbe API endpoint.
   • The API provides straightforward JSON responses showing the status of each scan, allowing you to monitor internal networks securely without exposing them directly to the internet.

Features

• ICMP Ping Checks: Monitor device availability with customizable timeouts and retry counts.
• HTTP/HTTPS Scans: Check web interfaces with timeout limits, expected HTTP status codes, and advanced response validation.
• Dynamic Expression Engine: Extract and evaluate variables from HTTP responses using JSON paths, boolean keywords, and logical operators (&&, ||, !, comparisons).
• Simple Web Editor & CLI: A minimal web-based configuration editor and a full-featured CLI to manage everything easily.
• Standalone API Server: A dedicated, lightweight API service to fetch scan results on demand.

Can I Use It Without Uptime Kuma?

• Absolutely. The HTTP API is fully standalone, meaning you can query check statuses directly, integrate them into your own dashboards, or write simple scripts to process the results.

• Please note:

  • KProbe is focused entirely on local execution and state reporting; it does not send notifications.
  • There are no plans to add alerting features, as it is intended to feed status data to systems that already handle notifications.

Getting Started

• For complete installation guides, command references, and troubleshooting, check out FAQ.md.

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KProbe is an independent open-source project developed by Karel Cermak (info@karlosoft.com). It is not affiliated with Uptime Kuma, Zabbix, or any other monitoring platform.