Wake up, everyone! Look, first all the long fear-mongering about DynDNS. So-called facts aside, the average user is happy with it:
https://blog.zetamex.com/posts/2019/12/why-dynamic-dns-is-...
But now, the "message of salvation," the savior in times of need, of course. What else...?
The "gift" to the long-suffering OpenSim world:
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"This among other small reasons is why we strongly recommend not to use such service and having your grid or standalone professionally hosted with hardware of adequate proportions. That is really the only way to mitigate some of these issues and reduce the effect they can have on your experience. In the past we have happily provided consulting to those wishing to move away from dynamic DNS and find a better home for their creations and events; along with providing the professional hosting that enables the stress-free use of the metaverse for everyone involved. If you are currently using a dynamic DNS and residential connection for your standalone or grid, get in contact with us, we can offer you something better that will in the long run avoid a lot of headaches!"
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In other words: "buy my toothpaste, only it helps against cavities."
Building uncertainty into the business concept, I know what to think of that...