We often hear about the internet's future, a world where everything is connected. A big part of that future relies on something called IPv

6. It's supposed to replace the older IPv4 system, which is slowly running out of addresses.

But what if that future isn't quite here yet? One developer, trying to build new servers with only IPv6, found out just how many hidden walls still exist. Their story shows a surprising truth about the internet's hidden problems.

The

Promise of IPv6: A New Internet Era

For years, experts have warned that the internet is running out of unique IPv4 addresses. Think of these like phone numbers for every device online. There simply aren't enough to go around anymore, especially with so many new devices connecting every day.

*IPv6

• was created to solve this. It offers a practically endless supply of addresses, making it the clear path forward for the internet. Many hosting companies have started encouraging its use, and some even charge extra for older IPv4 addresses.

Our developer decided to take a hosting provider (Hetzner) at their word. They wanted to set up a new group of servers using only IPv

6. This seemed like a smart move, saving money and preparing for the internet's next chapter. However, the experiment ended much sooner than expected.

Hitting Early Walls: GitHub and Software Downloads

The first major problem appeared when trying to get basic software. Many popular tools and programs are shared through services like GitHub. The developer found that the GitHub API, which lets computers talk to GitHub to download files, was not reachable using only IPv6.

This meant they couldn't download important software pieces for many projects. If a project distributes its software through GitHub, and GitHub's API doesn't work with IPv6, then those projects are simply out of reach. It was a significant roadblock right at the start.

The GPG Gauntlet:

Ubuntu and Package Installs

Installing software on servers often involves special keys to make sure the software is real and safe. These keys come from key servers. Our developer discovered that the standard *Ubuntu key servers

• (Ubuntu is a popular server operating system) were also not reachable via IPv6.

This made it very hard to install common programs from other sources, like Docker or Grafana. While looking into this, they noticed that a lot of the general GPG key infrastructure (the system for these keys) seemed broken or outdated. Only one key server, pgpkeys.eu, actually worked with IPv6.

Deployment Headaches: BitBucket and CI/CD

Building and deploying software automatically is a big part of modern server management. Tools like BitBucket offer "pipelines" to do this. But the developer hit another snag: *BitBucket pipelines

• cannot send software to servers that only use IPv6.

Even if you try to set up your own BitBucket helper program on your server, it still needs to be able to talk to both IPv4 and IPv

6. If it's only IPv6, the helper won't even start. This makes automated software deployment to an IPv6-only server nearly impossible with these tools.

The Irony: Even Hosting Providers Struggle

Perhaps the most surprising discovery was about the hosting provider itself. Hetzner, the company charging for IPv4 and pushing for IPv6, didn't even provide their own management tools (their API) over IPv

6. This was a huge irony.

This meant the developer's IPv6-only servers couldn't talk to Hetzner's own systems to find other servers in the same cluster. It was a clear sign that even the biggest players in the hosting world haven't fully committed to the IPv6 future.

"It seems IPv6 is still not viable, more than a decade after launch."

Why Does This Still Happen?

The Slow March of Progress

The developer's experience raises a big question: Why is *IPv6 adoption

• still so difficult, even after being available for over a decade? Part of the problem comes from the sheer size of the internet.

Changing something as fundamental as internet addressing is a massive undertaking. Many older systems, often called legacy systems, were built only with IPv4 in mind. Upgrading them can be expensive, time-consuming, and risky.

Also, there's a kind of "chicken and egg" situation. Many users and small companies don't feel a strong need to switch until more services fully support IPv

6. At the same time, many services don't fully support IPv6 until more users demand it. This creates a slow, difficult path forward.

This developer's experience shows that the internet's future, while bright in theory, still has some dark corners. Moving fully to IPv6 isn't just about new addresses, it's about every piece of the internet infrastructure catching up.

For now, it seems the old and new internet will have to keep working side by side. The full IPv6 world might still be further away than many of us realize, hiding in plain sight.