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Cake day: July 31st, 2025

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  • frongt@lemmy.ziptoSelfhosted@lemmy.worldOpenVPN ipv4 troubles.
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    1 day ago

    IPv6 is exactly the same as IPv4, just that the addresses are written with hex. Routing and subnetting and everything is exactly the same. (Also you can have exactly one double-colon, which expands to the necessary number of zeroes, purely for human ease of use.)

    The only big difference is that DHCP isn’t really a thing. Yes there’s DHCPv6, but it’s not the end of the story. There’s also SLAAC and other stuff. Ideally your provider assigns you a big subnet and your devices use smaller networks or addresses from there.



  • frongt@lemmy.ziptoAsk Science@lemmy.worldElectrons: particles or charge?
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    1 day ago

    are they merely negative charge with no physical form?

    Charge is a property of a particle. You can’t have charge with no physical form.

    Whether electrons zoom or bump or flow depends on how closely you look. The best answer, without several courses of physics, is just don’t worry about it, you apply charge to a wire and it conducts. The short “real” answer is that electrons kind of move like a gas along the conductor.