Focused, reliable, and purpose‑built utilities for networking, automation, and performance testing.
These are the tools I actively maintain and use in real‑world environments.
An automated Raspberry Pi OS setup script that installs Ewald’s tools, utilities, and custom .deb packages with minimal user interaction.
View on GitHub →A lightweight, scriptable reachability tester designed for automation workflows.
View on GitHub →A tmux‑powered iPerf3 measurement and logging framework with multi‑pane views and interactive controls, designed to integrate additional tools.
View on GitHub →Utilities for Cisco IOS‑XE Guestshell to automate tasks and extend device capabilities.
View on GitHub →A specialized cf‑update version for Cisco IOS‑XE Guestshell environments.
View on GitHub →A Cloudflare DNS updater for dynamic IP environments, ideal for home labs and VPN endpoints.
View on GitHub →
I’m Ewald Jeitler, a systems engineer with over two decades of experience and a Distinguished Senior Systems Engineer at NTS Netzwerk Telekom Service AG. I also hold a CCIE Enterprise Infrastructure certification (#27300)
All tools on this site are personal hobby projects that I build in my spare time. They reflect my curiosity, my passion for clean engineering, and my desire to create practical solutions for the networking and automation community. I hope everyone who uses these tools has fun exploring them and finds them as helpful as I do.