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Joined 3 years ago
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Cake day: June 20th, 2023

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  • Since nobody seemed to actually answer your question: the answer is that ram is actually really simple electrically. Modern DDR5 is very difficult and expensive to manufacture at scale, but is very simple to design.

    If someone were to try and poison a memory package, it would be massively obvious by virtue of the package being larger, being very electrically noisy, or by sucking an order of magnitude more power to function.

    DRAM sockets are not generic pci busses, and cannot be used on a typical motherboard to load arbitrary hardware the way USB or PCIE can.

    Also, the way ram works, you really couldn’t do much more than read contents and relay via an on-dir radio, which would have to be super short range. Even something as “simple” as Bluetooth or wifi would be too big, too slow and take too much power to still function as a memory die.

    You should be way more scared of cloud services, appliances, or iot devices than a stick of DDR5.

    Tl/DR: it’d be prohibitively expensive and itd have nowhere to go, if it could even work at all without Corsair noticing.







  • People shit on it but there’s a lot of good open-source tooling that supports it.

    There are nist l1 profiles

    Tutorials and guides for everything

    etc

    Part of being a good sysadmin is knowing when not to reinvent the wheel. Ubuntu has a lot of options for vetted, hardened, “other people’s wheels.”

    Also, for posterity, the competent ones are running the headless, server version of Ubuntu. (As opposed to the bloated mess that is Ubuntu Desktop). The server version catches a lot of flack it doesn’t deserve.










  • If caddy is acting as a proxy for anything, you should not need to forward that port externally. Local host firewalls allowing traffic on your local network is sufficient.

    Depending on your physical host layout you may be looking at an issue with nat reflection.

    You have not given us enough about your topology to assist in troubleshooting.



  • There are server chips like the E7-8891 v3 which lived in a weird middle ground of supporting both ddr3 and ddr4. On paper, it’s about on par with a ryzen 5 5500 and they’re about $20 on US eBay. I’ve been toying with the idea of buying an aftermarket/used server board to see if it holds up the way it appears to on paper. $20 for a CPU (could even slot 2), $80 for a board, $40 for 32gb of ddr3 in quad chanel. ~$160 for a set of core components doesn’t seem that bad in modern times, especially if you can use quad/oct channel to offset the bandwidth difference between ddr3 and ddr4.

    I think finding a cooler and a case would be the hardest part