Connecting to PUB400 with VS-Code for IBM i

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April 10, 2025

Welcome to the magical world of PUB400, where your IBM i dreams come true – assuming you can connect to it first!

Code for IBM i VS-Code

Are you ready to supercharge your development workflow and bring your IBM i coding into the 21st century?

If wrestling with connection errors and configuration settings feels like a cruel joke, fear not this blog is here to turn that chaos into clarity. Or clarity into chaos. You can never be too sure.

In today’s blog, we’re diving into the exciting world of connecting to PUB400 (a free, public IBM i server) with Visual Studio Code (VS-Code), the go-to editor for developers everywhere.

The glorious combination of PUB400 and VS Code, means you can actually get things done instead of staring blankly at error messages.

Whether you’re a seasoned RPG programmer or a newbie looking to explore IBM i, using VS-Code with PUB400 is the key to unlocking a world of modern tools, extensions, and productivity hacks.

Let’s bridge the gap between IBM i’s rock-solid reliability and VS-Code’s cutting-edge features, grab your keyboard, fire up your VS Code, and let’s get you connected without losing your sanity.

Connection settings should look like this:

Connecting to PUB400 with VS-Code for IBM i

NickLitten


IBM i Software Developer, Digital Dad, AS400 Anarchist, RPG Modernizer, Shameless Trekkie, Belligerent Nerd, Englishman Abroad and Passionate Eater of Cheese and Biscuits.

Nick Litten Dot Com is a mixture of blog posts that can be sometimes serious, frequently playful and probably down-right pointless all in the space of a day.

Enjoy your stay, feel free to comment and remember: If at first you don't succeed then skydiving probably isn't a hobby you should look into.

Nick Litten

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