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Cake day: June 5th, 2025

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  • Ok, so it’s probably using NetworkManager. I would try disabling it in /etc/NetworkManager/NetworkManager.conf by adding a block like:

    [ipv6]
    addr-gen-mode=stable-privacy
    method=disabled
    

    Then sudo systemctl restart NetworkManager. Can’t say for sure if this will work. I dislike using NetworkManager on my servers so I can’t test if this works. But hopefully the before/after of ip addr is different.

    Although it looks like your ip addr output posted an hour or so ago doesn’t show any ipv6 addressing. Maybe the problem is solved now.


  • Different programs have different defaults.

    But in your situation which would be more helpful - prevent this one docker command from using ipv6 (likely more difficult), or preventing all commands from using your broken ipv6 config (likely easier)?

    I have no idea about the first. Maybe some people know this detail. But I’m sure that with a distro and version that you’re running, there are lots of people who could help with the second. Raspberry Pi 3B+ is the hardware. What software are you using?


  • Docker is a distraction in your problem description.

    It’s like if you asked why the top gear in your car isn’t working and gave the model of car and engine type and gearbox. But it’s really that you’re stuck in slow traffic. Focus on the road name and destination to find a faster route.

    For your problem, search for how to disable ipv6 for the Linux distribution and version that you have installed. You will find lots of guidance. Or share those details here for someone to help.

    Or, better might be to see if there is a way to get ipv6 tunneling working on your connection. It may be possible even if the ISP is unhelpful.






  • Public transportation in cities varies. But inter-city transportation? In most of the USA you simply cannot travel between towns or cities on public transportation. There are a few inter-city bus options (Greyhound, Flix, Megabus), but those don’t go everywhere.

    The rail options outside of the NE corridor (Boston to Washington DC, basically) are very sparse. Here’s the map: https://www.amtrak.com/content/dam/projects/dotcom/english/public/documents/Maps/Amtrak-System-Map-020923.pdf

    That’s it. Most of those routes are at most once per day in each direction. So if you city even has a stop (which it probably doesn’t) the train may only come through in the middle of the night. Some routes are only 3x/week. And because of the massive distances involved and old equipment, it takes at least 70h+ to travel from coast to coast (more really, since connection times are long) and costs twice the price of a 6h flight ($250+ vs $80-120).

    Trains are often on schedule, but can be many hours late. Once they are off schedule they are at the mercy of the freight train lines (who own the tracks) for passing. You can get stuck behind a slow moving cargo train for many hours.

    Why is it like this? It’s complicated. But it starts with very low population density, large areas/distances, and a very different relationship between the individual and the state in the US vs most of Europe. Add the rise of suburbs in the automobile right when many US cities were growing. Another factor is public attitudes. People think that public transportation is for poor people. I know people who have never ridden a city bus, and I live in a city that probably has above average public transportation for the region.

    Anyway, as a public transportation rider-by-choice I feel your pain. Having spent a few weeks in Germany recently (with a DT for travel), and having ridden extensively on US train and bus networks, yous is definitely much, much better. Resist the politics of privatization and decay.