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genmud

1,784 karma · joined September 18, 2017

Security nerd. Father.
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genmud··on Ask HN: How do I build a drone?
I would recommend not building from scratch. Take a known platform (even if you build it yourself) and focus on the navigation.

I would highly recommend looking at ardupilot and inav.

You need a bunch of components to make a drone... frame, motors, props, flight controller, speed controllers, batteries, camera, receiver and transmitter.

genmud··on Supermicro Racks Up the System Revenues
Maybe in tech, enterprises are building their own stuff, but outside those companies large enterprises are largely either outsourcing(to AWS, or managed providers) or looking for solutions with minimal system maintenance...

I see oxide as a cloud in a rack, fairly hands off, whereas SuperMicro is a choose your own adventure book.

Personally, I want both companies to crush HPE and Dell.

genmud··on Supermicro Racks Up the System Revenues
Dell "almost" got it with their c series, where they had like 4 compute in a 2u box, so you can run 8 CPUs in 2u with like 12 or 16 slots of ram per compute, but they increased the pricing so much they aren't worth it anymore.
genmud··on Supermicro Racks Up the System Revenues
Eventually that might be the case, but I actually think there will be enough room for both companies to have healthy growth. Personally I think oxide will clean up in the enterprise space, whereas SuperMicro will focus more on the people building their own systems.
genmud··on Supermicro Racks Up the System Revenues
Are you implying it will decrease?

Personally I think that SuperMicro (and oxide) scratches a niche that dell, hpe, ibm and other "on premise" enterprise solutions don't really seem to care about. The smaller, but hyperscaler style of DC without dealing with the bullshit from those sales reps. I think over the next 5-10 years, the pendulum will swing back to either colocated or on-prem compute/storage now that places like AWS, Azure and GCP have critical mass with minimal incentives to lower their prices.

Supermicros AMD 1u products, GPU and storage products don't really have competition price-wise from other providers, and the TCO for a colocated beast of a server is like 20% of AWS over 3 years. SuperMicro has a bunch of 32dimm servers and their ram isn't marked up insane like other companies. And their 60 and 90 3.5 inch drive servers are really hard to beat price-wise for distributed storage.

genmud··on Intel Itanium IA-64 Support Removed with the Linux 6.7 Kernel
This makes their modeling errors even more egregious and embarrassing. If you know governments are subsidizing it, and there are no foreseeable plans to cut said subsidies, you would be a fool to not forecast growth.
genmud··on As the public begins to believe Google isn’t as useful, what happens to SEO?
Encyclopedia Britannica type of resources are probably gonna make a comeback. I recently was thinking how much of an opportunity for growth there is going to be for fact checked/expert verified resources in the next 10-20 years.
genmud··on As child care costs soar, more parents may have to exit the workforce
When the median household income is 75,000 and the average household size is 2.5, yes, a metric like this can be a value judgement of policies.

I have another kid on the way and daycare for both kids (when the new one is about 8-9 months old) is going to be around $3,700/month, or $44,400 per year. For my family we will spend more than half the median household income just on child care. The story is almost the same with nearly every parent I talk to.

genmud··on SEC Charges SolarWinds and CISO with Fraud, Internal Control Failures
The dirty secret is that almost every award for companies is pay to play. Some just obfuscate it better than others (e.g. gartner, forester or other big boys) rather than making it a straight up cash for award play.

If you aren’t paying to talk to analysts, sponsor events for their customers, etc… they aren’t going to pay attention to you or listen to what kind of products/services you provide. You do the same thing with customers, put them on bullshit advisory boards or whatever.

Boom! You are part of a wave or end up in one of the quadrants.

genmud··on USB Power Delivery for Hobby Projects
Wanna make one, we could open source it? I have thought about making something similar before for driving VFD/Nixie tubes. There are a bunch of things out there that don't quite scratch the itch.

https://www.sparkfun.com/products/15801

https://www.adafruit.com/product/5807

https://electroniccats.com/store/catsink-usb-c-pd/

genmud··on FCC wants to bolster amateur radio
So, why wouldn’t you be able to encrypt the data you send before digital encoding?
genmud··on FCC wants to bolster amateur radio
I thought the encryption restriction was only for analog radio, not digital?
genmud··on The risk of RISC-V: What's going on at SiFive?
I had actually worked on a greenfield project and was comparing them with ARM, I was quite surprised how expensive they were when you did an apples to apples comparison to ARM. I was expecting like 30-50% savings on ARM, which they wouldn't be anywhere near.

They kept mentioning they would match or do better than ARM pricing, but at least with ARM, there was a bit more flexibility (like paying at tapeout, and for startups with ARM it's like $100k for support IIRC).

genmud··on Off-duty pilot allegedly tried to shut off engines on Alaska Airlines flight
First off, people with known mental issues (depression, ADHD or suicidal thoughts) actually can legally purchase / possess guns, silencers, machineguns and grenade launchers (assuming they have the proper paperwork/taxes paid). They only become a prohibited possessor when they are adjudicated mentally defective (a legal process) or have been institutionalized at a mental hospital.

Secondly, issues like this aren't a 0 or 1, they are on a scale. Someone can be depressed without being suicidal and someone can be suicidal without being homicidal. Someone can have ADHD without being a danger to passengers.

The FAA treats all mental issues effectively as the same thing, which results in pilots being barred from flying. Someone feeling down for a month or two after their wife dying after 30 years of marriage gets the same treatment as someone who ideates killing a plane full of passengers.

genmud··on Off-duty pilot allegedly tried to shut off engines on Alaska Airlines flight
From what I have read in biographies on suicidal people in bands and performers, who show similar traits, they can/do enjoy things... it's just they are constantly looking for "more" and can't really get the easy fulfillment they used to, since it's hard to outperform their career highs.

I imagine it's similar with some pilots.

genmud··on 1Password detects "suspicious activity" in its internal Okta account
Full PCAP, process auditing and centralized logs are not only a thing, they have been for decades.

It just simply isn't worth the investment for CIO/CTO/CISO types because it isn't sexy. To say it's impossible is just factually inaccurate.

I know more than a few places doing 40gbps and 100gbps full packet capture for 30+ days. And relatively speaking, the investment isn't that large (for tens of petabytes it isn't as expensive as you might think).

genmud··on An antiquated law rules mining in the West
Having done executive level consulting for two of the biggest mining operations in the world, it's my anecdotal observations that the execs at those companies have some of the lowest/worst ethics I have ever seen in my 20+ years of work.

To put it into context, I have worked with lawmakers / politicians, lobbyists, fortune 100 boards / exec teams and porn companies. By far the worst human beings I have ever encountered in my life (who weren't like, legitimately criminals, at trial) were the people in the mining industry.

genmud··on Amazon to managers: OK to fire employees who won't come to office thrice a week
I wonder how their morale is. I imagine it has to be really frustrating for folks who were hired remote and then rug pulled to go back into an office.
genmud··on Google opens Falcon, a reliable low-latency hardware transport, to the ecosystem
Because aggregation, summarization and continents are a thing. Also... there are things which speak IP and don't use Ethernet for underlying communications, specifically in the network carrier and high performance optical space.
genmud··on Google opens Falcon, a reliable low-latency hardware transport, to the ecosystem
But you can't route MACs... you can't associate domain names to MACs...

Maybe for a LAN that's fine, but for connecting devices between broadcast domains, it just doesn't cut it.

genmud··on One year post-acquisition, X traffic and MAUs in decline, report claims
Well, anecdotally it feels like infosec and osint twitter are rotten husks of their former glory. There used to be vibrant discussions and commentary, but I guess it depends on what you do/follow on Twitter.

MAU might be flat, but I can almost guarantee the bot or inauthentic traffic is what are keeping those numbers flat. Heck, a non zero amount of that inauthentic traffic has paid for twitter for purposes of spam or propaganda.

Protip: you can generally tell a sites actual user base by the quality of ads and their ad revenue. They are running non brand safe ads and reports are their ad revenue is a fraction of pre-musk levels. I half expect them to start running straight up taboola ads at some point.

genmud··on Google Cloud Spanner is now half the cost of Amazon DynamoDB
That's a trick question, since there isn't any customer service.
genmud··on Delta finds fake jet aircraft engine parts with forged airworthiness documents
It’s insane to watch YouTube on some of the industrial “promotional” videos from China and India. Like if you look up videos of really any manufacturing, you see shit that simply would never fly in Europe or the US because we don’t tolerate having stuff in factories that will eventually maim or kill someone.

Like if people doesn’t care about killing their coworkers they work with and can see, they sure as shit don’t care about dangerous practices that impact someone they don’t know.

genmud··on X confuses the masses by removing all details from links
And yet, we are talking about X. Which currently shows a cover photo and nothing else about a link, so you have no idea what the link / article / page is about.

Many people share links with commentary and without clicking on an article you would have no idea other than a photo, about what the commentary is referring to.

genmud··on How BlackBerry failed to respond to the iPhone
They won because their browser wasn’t hot garbage. Blackberry browser was so limited, android was not great and iPhones come along with a browser that was almost equivalent to a desktop experience.

By the time iPhone 4s came out it was a viable option for enterprise.

genmud··on New CEO took International Harvester from 4th largest US firm to bankruptcy
Yea, like how they destroyed Ford, GM and Chrysler? While the auto industry recovered, International did not.

Unions were willing to work with other companies in the early 80s during the oil / financial problem, but from everything I read it was a two way street and their priority was the workers they represented.

genmud··on F-35 can’t be found after pilot ejected
Probably made out of special radar absorbing shit and requires specialized to make sure it is uniform (or not) in its application.

I used a really thin ceramic based paint coating and it was really difficult to apply in a uniform manner. I can’t imagine how hard getting stealth coating onto a fighter jet is.

genmud··on To build ships that break ice, U.S. must relearn to cut steel
I call BS. Code and any process can be documented just fine.

> 3 different cooks will read his instructions and will end up with 3 different steaks

Either his instructions are shit, or the cooks are donkeys.

Sear steak at high heat, 1 minute, rotate steak 45 degrees, flip steak to sear back side for 1 minute, rotate steak 45 degrees. Move steak to indirect heat until internal temp probed at center of steak reaches 145F, remove steak and plate steak after resting for 4 minutes.

There. If you follow those instructions you can get a perfectly done steak every. single. time.

Shit is only subjective if you don’t have a repeatable way of measuring things.

You absolutely can learn steel working and foundry type of stuff from books, but you have to find ways of measuring what you are doing. E.G. heat to this temp, control cooling process by means of $X, $Y, $Z. Inspect crystal structure of coupon, X-ray for porosity.

It isn’t easy, but it can be done.

genmud··on $1,599 RTX 4090 Beats $6,800 RTX 6000 Ada in Content Creation
I can't really buy 4090s for rack mount servers though. Power/cooling can be a pain.
genmud··on What is RISC-V, and why we're unlocking its potential
Yea, but I think that is a response to google not allowing / strongly encouraging android kernel patches into mainline. This is a huge difference than the previous model where there were forked versions of the system tied to a kernel version.

This talk is a great overview of where things are going...

https://youtu.be/6O878RYYM18?si=nabScwXDTGQ4seCj

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