adiabatichottub

5 ms·

31.
by adiabatichottub 7mo ago
Ho ho ho, you asked for it: https://www.youtube.com/watch?v=OC7sNfNuTNU
32.
by adiabatichottub 7mo ago
Maybe if by "same voltage" we mean DC voltage the same as AC peak voltage. When we talk about AC voltage we are referring to root-mean-square (RMS) voltage. It's kind of like saying the average, though for math reasons the
33.
by adiabatichottub 7mo ago
Right, but that's why I mentioned safety equipment. Your common DIN-mount UL-489 branch circuit breaker will be rated for the same trip current, same short circuit current rating (SCCR), but lower voltage. So you can use the same wir
34.
by adiabatichottub 7mo ago
Your modern fridge is probably going to have an inverter-driven motor, so you're right back to using DC.
35.
by adiabatichottub 7mo ago
Really depends on what we're talking about. A lot of electrical safety equipment has a DC rating, usually something like 90VDC/300VAC. Also, most DC equipment just isn't going to have the stored energy to generate a big arc
36.
by adiabatichottub 7mo ago
Don't forget general familiarity. I don't know about today, but Apple was once very big on giving large discounts to education specifically for the purpose of getting students familiar with their machines. https://amer
37.
by adiabatichottub 7mo ago
If people stopped buying cigarettes there would be no tobacco industry. But the true cost of smoking is not something that the smoker realizes until it's already too late. That's why we had to have huge public health campaigns t
38.
by adiabatichottub 7mo ago
That's probably reading too much into the metaphor. I think it's apropos because regardless of whether the others are smart or not, we all have blind sides, and in order to get things done that need to be done you have to apply pr
39.
by adiabatichottub 7mo ago
I was mainly referring to statements made by Linus Torvalds that got a lot of press. Canonical seems undeterred by any such arguments.
40.
by adiabatichottub 7mo ago
Fair, but to my point none of those security patches for 14.2 or 14.3 that required a reboot were critical for our use case. I'm more worried about people's crappy Wordpress blogs getting hacked.
41.
by adiabatichottub 7mo ago
Stock FreeBSD is about 1.5GB. If you really strip it down to a barebones OS it's about 300MB.
42.
by adiabatichottub 7mo ago
Well, my experience on the stable release branches is that there aren't all that many kernel updates, so if you keep your services patched then you really only need to reboot about every 6 months.
43.
by adiabatichottub 7mo ago
sysctl kern.randompid=1 Oddly enough, not in the sysctl(3) manual
44.
by adiabatichottub 7mo ago
Well, I mean... Netflix is the example I think most people have heard of: https://freebsdfoundation.org/end-user-stories/netflix-case-... But it's still a pretty small market share.
45.
by adiabatichottub 7mo ago
I guess I was thinking microcontroller as client, so yes I agree
46.
by adiabatichottub 7mo ago
> It also helps technically. If you want to make a tiny web server, like on a microcontroller, encryption is the hardest part. > Two problems remain with the lack of encryption, first is authenticity. Anyone can man-in-the-middle and
47.
by adiabatichottub 7mo ago
> I have FreeBSD servers that I have not touched for years, and they have worked 24/7 with no downtime and no rebooting, and this includes servers connected directly to the Internet, which implement firewalls, routers and various se
48.
by adiabatichottub 7mo ago
I've been using both Linux and BSD since 2000. Honestly, I prefer Linux on the desktop. My dev workstation runs Arch, and I keep a FreeBSD VM running to do OS and ports builds. As a server OS I find FreeBSD really consistent and easy
49.
by adiabatichottub 7mo ago
I've been surprised at times by what's missing. There are are some strange omissions, from most recent memory around the Bourne shell builtin commands and make(1). I've had to go hunting in other BSD distribution manuals at
50.
by adiabatichottub 7mo ago
Right. On my development workstation I use Arch and I'm always worried a kernel upgrade is going to break the ZFS module. For those that aren't familiar, ZFS isn't part of mainline Linux because of licensing incompatibility
51.
by adiabatichottub 7mo ago
I don't know about difficult to translate, sounds a lot like being a "Good Old Boy" https://en.wiktionary.org/wiki/good_old_boy https://en.wikipedia.org/wiki/Old_boy_network#United_S
52.
by adiabatichottub 7mo ago
It's been a conflation issue (and major point of contention) since the 90s. "Free Software" and "Open Source Software" are two different things that have traditionally been used together to promote the rights of th
53.
by adiabatichottub 7mo ago
There's been something lost over time about the philosophy of open source. It appeared at a time when it was becoming apparent that computers represented a new type of technology where you couldn't just "look under the hood&
54.
by adiabatichottub 7mo ago
I think we've all been burned by 20+ years of exploitation in the guise of "free product." Google more or less spearheaded that movement. I agree we should all be community-minded and have nice things, but when you look at
55.
by adiabatichottub 7mo ago
In the early 2000s I traveled thousands of miles in an old school bus fueled by waste vegetable oil (WVO). The system was very simple, the bus had an extra fuel tank with a heat exchanger to the engine coolant, a couple fuel filters, and s
56.
by adiabatichottub 7mo ago
I think you're talking about "execpromises"?[1] I'll have to study it a bit. [1] https://bsdb0y.github.io/posts/openbsd-intro-to-update-on-pl...
57.
by adiabatichottub 7mo ago
I'm not terrible familiar with Linux container systems, cgroups and all that, but I have been down the rabbit-hole with FreeBSD's jails, and I definitely wouldn't call them a capabilities system. You can lock down the enviro
58.
by adiabatichottub 7mo ago
One question I've always had about these capability systems is: why isn't there a way to set capabilities from the parent process when execing? Why trust a program to set its own capabilities? I know that having a process set ca
59.
by adiabatichottub 8mo ago
Right, a lot of discussion about the energy economy of transportation would probably be better framed using units of people-miles or cargo-miles, per unit energy.
60.
by adiabatichottub 8mo ago
Yeah I'm not sure that EV number maths out. That's 18kw at 60mph for 10 minutes. It sounds really low to me. Going 45mph on a 110lb eMoto with 180lb rider takes ~6kw.

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