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johnjac

24 karma · joined August 26, 2011

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johnjac··on Online pornography age checks for UK web users [video]
Hah Hah, no.
johnjac··on The Man Who Invented Information Theory (2017)
Here is the Kindle version: https://www.amazon.com/dp/B008XJ8O4E/ref=cm_sw_r_tw_dp_U_x_4...
johnjac··on AWS DeepRacer – Go Hands-On with Reinforcement Learning
Based on all the images on the product page, can SOMEONE please tell what which side is the front of this car? The side with the AWS logo looks most car like, but the logo makes it look like it runs with the black side first.
johnjac··on An IPv6 Update [pdf]
As a network engineer for over 2 decades, I've been skeptical of IPv6 for the majority of them.

I still am.

As IPv4 becomes more scarce, two economic forces trigger

1) They become more valuable (read more desired). IPv4 has all the network effects going for it. It's where 99.9% of the Internet already is. .1% being IPv6 only devices.

2) To counter the rising value/cost: Workaround/Kludges/Alternatives to every devices needing a globally unique address are tried. Everyone is going to reply with how awful NAT is, and I concede it has its flaws. However, it is hard to deny its success so far. Business then do the cost benefit of the shortcomings of things like NAT vs selling their now valuable IPv4 address space, think where they are going to come down?

johnjac··on Why You Should Never Buy an Amazon Echo or Even Get Near One
Yes but we could could look at the amount of of data transmitted in total. Audio compression is well understood, and can infer within an range of usable quality, if any excess voice or other data is sent over the network.
johnjac··on Why You Should Never Buy an Amazon Echo or Even Get Near One
http://www.vnutz.com/articles/Idle_Network_Activity_of_an_Am...
johnjac··on Why You Should Never Buy an Amazon Echo or Even Get Near One
https://www.iot-tests.org/2017/06/careless-whisper-does-amaz...
johnjac··on Amazon owns a whole collection of secret brands
I think Fossil only makes watches under these brands, They don't own the brands themselves.
johnjac··on Bitcoin 'creator' backs out of Satoshi coin move 'proof'
We're an anarcho-syndicalist commune. We take it in turns to act as a sort of 'Satoshi Nakamoto' for the week. But all the decision of that Satoshi have to be ratified at a special biweekly meeting.
johnjac··on Talk Obama to Me
so cool, just one annoying thing, the clip used for saying "Obama" has "the" at the beginning, it just doesn't sound quite right. http://talkobamato.me/synthesize.py?speech_key=ec64653148647...
johnjac··on Twitter lands NFL deal to stream Thursday night games
They can't stream to mobile, and CBS already has apps on all the set top boxes they can stream too. So twitter can stream to browsers? What exactly did twitter buy here?

edit fixed grammar

johnjac··on Nationwide High Voltage DC Grid: Cheapest Way to Radically Cut CO2 Emissions?
Yeah, this should have been included in the article. From Wikipedia: A long distance point to point HVDC transmission scheme generally has lower overall investment cost and lower losses than an equivalent AC transmission scheme. HVDC conversion equipment at the terminal stations is costly, but the total DC transmission line costs over long distances are lower than AC line of the same distance. HVDC requires less conductor per unit distance than an AC line, as there is no need to support three phases and there is no skin effect. https://en.wikipedia.org/wiki/High-voltage_direct_current#Ad...
johnjac··on Show HN: Using PostGIS and CartoDB to identify schools at risk from earthquakes
This is not to say the earthquakes are not a problem, they are. Just don't assume that this data maps to school damage see so far.
johnjac··on Show HN: Using PostGIS and CartoDB to identify schools at risk from earthquakes
Prague the school right in the middle of the hot spot, is where I graduated from. However that was well before the rash of earthquakes (1998) They did have a gym destroyed by a tornado a few years ago. I have not heard of any damage yet from the earthquakes.
johnjac··on BPG Image Format Specification
Am the only one who was expecting something network related, just for a second?
johnjac··on Raising Floor for Minimum Wage Pushes Economy into the Unknown
The problem with this type of wealth redistribution is that the poor are often consumers of the same products and services served by min wage jobs. This is one of many reasons I support unconditional basic income. It allows labor to be accurately priced in the market, without raising cost to the poor.
johnjac··on Rogue antimatter found in thunderclouds
If this blast of gamma rays didn't give us scientist with superpowers, I'm going to start to think comic books aren't true.
johnjac··on Observations of an Internet Middleman
This "out vs in" comparison in order to determine who pays is a meme that won't die. I've never known agreements to be formed in such a way. Maybe before my day in the dial up era when "out vs in" could serve as rule of thumb of sorts to determin who was an access ISP and who was an "Upstream" or "Tier 1" ISP. Can someone provide a source for this?
johnjac··on Observations of an Internet Middleman
My understanding is this. No Money exchanges hands between Level3 and Comcast, but there is an agreement for Comcast to provide a port for Level3 to connect to. Level3 brings the traffic to Comcast door Step. Level3 pays for the port on their side. Level3 is happy to add more ports, BUT Comcast Refuses. Not because more ports are that expensive but those in charge at Comcast are from the TV side of the house where blackouts are common negotiating tactics in order to be paid. And Level3 refuse to be held over a barrel for payment when Comcast has a local monopoly power.
johnjac··on Avram Miller says Steve Jobs has one more Apple intro
<tin foil hat thought> Maybe they are behind duckduckgo.com ? That would give them cover to start spridering </tin foil hat thought>
johnjac··on An Open Letter to the Chiefs of EMC and RSA
2nd, and I'm not so certain backdoors like these are not used on all people.
johnjac··on You need nothing.
This is sarcasm, the question is whether or not the sarcasm is intentional or not.
johnjac··on Infographic on IPv4 Addresses Running Out
"IPv6 is the future and the future is NOW!" Is what has been said for years. And everyone overlooks the value that IPv4 has ala Metcalfe's Law. And that value can be further mined if we had a public market for IPv4 addresses. IPv6 is not the only solution.

Let's start admitting that IPv6 offers no (or little) present day net benefits compared to the benefit of currently connecting to all of IPv4. And let's stop with the NAT booggy man argument. NAT works well, as much as any tech works and isn't perfect. And let's stop pretending that only thing stopping a peer 2 peer utopia is the lack of globally unique address. There many economic forces in play beyond that.

(edit spelling fix)

johnjac··on Infographic on IPv4 Addresses Running Out
I also need my ISP, my power company, etc. I'll never be an island. This IPv6 utopia where everything is peer2peer just isn't going to happen, there is too much value in central services.
johnjac··on Infographic on IPv4 Addresses Running Out
This is getting close to my point. If: 1) outbound only is going to be the default, and 2) most services already need 'man in the middle' (directly service at least) and 3) IPv6 is going to need to NAT to get to the legacy IPv4 addresses anyway

What advantage is IPv6 for most of my devices giving me?

johnjac··on Infographic on IPv4 Addresses Running Out
That is still allocations, not usage. If we had a public market for IPv4 addresses there would be incentive to use them like the limited resource they are.
johnjac··on Infographic on IPv4 Addresses Running Out
I know how it works, but the point is it works. Let's not pretend that everyone getting Nest thermostats is a reason for IPv6. And Most applications need "man in the middle" services anyway even if everything was publicly addressable. Nest HQ needs it public servers, There is no need for my thermostat to have a public IP.
johnjac··on Infographic on IPv4 Addresses Running Out
In my home I have: Nest, Sonus Playbar, Sonus Sub, 2 Wemo light switches, 2 Wemo outlets, 1 Wemo activity sensor, AppleTV, Ruku, ChromeCast, PS3, Apple Time Capsule, Apple airport, Work router for VPN, Work IP phone, Printer, Ooma home phone, 2 ipads, 1 kindle HD, and 2 iphones.

I have 1 public IP address and everything works.

We have an an IPv4 allocation problem, TONS of IPv4 space allocated to companies and not used. What we don't have is IPv4 usage problem, or the need for everything "on the internet" to be publicly addressable.

johnjac··on Google Sets Plan to Sell Users’ Endorsements
For a year.