ThanksForAllTheFish
@ThanksForAllTheFish@sh.itjust.works
- Comment on Phones have unique phone numbers, why dont computers have unique computer-numbers? 7 months ago:
My understanding with phones is that you phone your own provider, who then looks up the provider of the number you’re calling based on country code, provider or area code prefixes. Providers will “peer” with each other to route calls over the most cost efficient path. So the other sides provider is responsible for getting it to the right destination phone within thier own customer network. Theres no authentication from the sending party on a protocol level, this is why scammers can spoof as any phone number.
I believe that IP routing does something similar, the IP data is handed over to possibly multiple providers until it reaches its destination provider. The blocks of ip addresses are published as linked to an Autonomous System and each autonomous system has an owner/provider. The source is not authenticated at a protocol level which is why we need client and server certificates.
In DNS you go to the root TLD servers and ask where the .com resolver is. The .com resolver has a list of mappings of authoritative name servers to domains. So example.com may have an authoritative NS of 1.2.3.4 who you can go to and ask what IP test.example.com is hosted on. The authoritative name server is the source of truth for that domain and other servers cache it to prevent overloading. You may check with the authoritative NS if you want but it may be slower to respond than your local NS. Again DNS is not authenticated at the protocol level so we need server certificates to prove that the device behind the IP serving you actually is allowed to serve you test.example.com.
- Comment on I'm a US citizen, people in other countries, what do you think when you read stories like these about the US health care system? 10 months ago:
In the UK you can invest £20,000 (25,000 USD) per year into a fully tax free ISA savings account. You can spend it on anything you chose at any time, and you will never need to spend any of it on healthcare against your will. www.gov.uk/…/how-isas-work
Dental care is free in the UK for under 18s, people who are pregnant or low income people. nhs.uk/…/who-is-entitled-to-free-nhs-dental-treat…
- Comment on I'm a US citizen, people in other countries, what do you think when you read stories like these about the US health care system? 10 months ago:
This is wild, in the UK, if you were in an accident and needed years of surgeries, it will always be free. The cost of parking to visit the hospital will be the most expensive thing anyone ever gets billed for, and that will be around 10 dollars a day. We do pay income tax, but lower income earners pay less or none. Theres also sales taxes, and things like sugar, alcohol and nicotine are taxed quite highly as they can contribute to health problems. But it’s all well worth it to never worry about medical costs. www.gov.uk/income-tax-rates gov.uk/…/sugar-tax-revenue-helps-tackle-childhood… www.gov.uk/tax-on-shopping/alcohol-tobacco
- Comment on Not even poor Notepad is safe from Microsoft's AI obsession 11 months ago:
That would be fine, but a lot of these features are added in an update, with complicated setups or mods to turn them off. Start bar local app search now gets sent to bing search by default, thats almost never what people want. Most people wont know how to disable it or care. But I guess thats fine as long as Microsoft gets to increase its bing usage stats and collect more user data.
- Comment on Not even poor Notepad is safe from Microsoft's AI obsession 11 months ago:
AI assistants usually need to upload the data to process it. So it’s potential enshitification via adding data upload/harvesting features to a trusted offline text editor. Usually companies have ways to generate revenue streams based on the data from these “free and useful features”. Adverts based on what text files you open might be the long term end goal.
- Comment on Stop doing Computer Science 1 year ago:
Serious question, wouldn’t it be cheaper to buy it?
- Submitted 1 year ago to technology@lemmy.world | 1 comment