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Hey! Please contact me at my primary Fedi account: @lemann@lemmy.dbzer0.com

https://lemmy.one/u/lemann@lemmy.dbzer0.com

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Joined 1 year ago
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Cake day: June 6th, 2023

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  • Dang, that thing is the bees knees!

    Would make more sense to replace just the batteries rather than the whole unit IMO. Looks like it takes standard 12v 7Ah sealed lead acid batteries, so should be doable for under $120 (if you buy them individually and use the existing battery harness)

    I have three other UPSes, but none of them are as good as yours lol:

    • APC SUA1500RM2U - was a great online rackmount unit, stopped using this a few years back because of its tendency to overcharge batteries without a charge controller ADC calibration mod. It wrecked my last battery pack bad 😭 plan to convert it to LiFePo4 and put it back into service 🤞
    • Zigor Ebro - cheap and cheerful line-interactive UPS for the modem, network switch and CCTV cameras. Switchover time is pretty much instantaneous, worth every cent paid and has kept my network up through many outages
    • Cyberpower UT650 - A temporary offline UPS to hold the server gear specifically until I get the APC back in service. Honestly not worth the cheap price, the switchover delay is long enough to shut off anything that’s not a server PSU with massive bulk capacitors

    Edit: fix bullet list formatting




  • Flash drive hidden under the carpet and connected via a USB extension, holding the decryption keys - threat model is a robber making off with the hard drives and gear, where the data just needs to be useless or inaccessible to others.

    There’s a script in the initramfs which looks for the flash drive, and passes the decryption key on it to cryptsetup, which then kicks off the rest of the boot mounting the filesystems underneath the luks

    I could technically remove the flash drive after boot as the system is on a UPS, but I like the ability to reboot remotely without too much hassle.

    What I’d like to do in future would be to implement something more robust with a hardware device requiring 2FA. I’m not familiar with low level hardware security at all though, so the current setup will do fine for the time being!






  • Edit: sorry, I may have misunderstood your post - free email != email masking.

    My original post below…


    Curious why you consider email address masking services as for those with “drastic anonymity” requirements?

    I personally don’t think so: they are pretty much just a digital P.O. box, and are typically not anonymous in any way (subpoena/court order to the provider). They are built-in to Firefox too, it will automatically create new ones OOTB as you sign up on websites, if you click the autofill.

    They are however IMO one effective tool out of many to restrict the ability of data brokers and hacking groups (aggregated breach datasets) alike from making money from your online presence without your consent.

    In almost all cases this data is freely searchable for law enforcement and private investigators, allowing them to avoid going through the legal system to investigate and possibly detain you for things you’re not guilty of