Hacker News: fabioyy

New comment by fabioyy in "AirSnitch: Demystifying and breaking client isolation in Wi-Fi networks [pdf]"

fabioyy — Thu, 26 Feb 2026 18:56:12 +0000

macsec can encrypt data in ethernet for lan, maybe it can solve this

New comment by fabioyy in "Static Web Hosting on the Intel N150"

fabioyy — Wed, 19 Nov 2025 20:04:30 +0000

The numbers seems to be too much near 65535 to be a coincidence.

are you making the request from a single IP address source? are you aware of the limit of using the same source IP address for the same destination IP address ( and port )? ( each connection can have only a unique source address and source port to the destination, maxing out in source 65535 ports ) for the same destination

New comment by fabioyy in "Using FreeBSD to make self-hosting fun again"

fabioyy — Mon, 03 Nov 2025 17:18:27 +0000

what about docker/containerd compatibility? is now possible to run on freebsd?

New comment by fabioyy in "Ask HN: How to stop an AWS bot sending 2B requests/month?"

fabioyy — Fri, 17 Oct 2025 19:16:49 +0000

no need to mess with the kernel, block on the local machine firewall outgoing RST packet ,create a program that reads raw socket for incoming SYN and answer the syn/ack). but anyway, this technique will not differentiate legitimate connections.

New comment by fabioyy in "YouTube is a mysterious monopoly"

fabioyy — Wed, 10 Sep 2025 04:32:43 +0000

since google is tier 1 network. does anyone knows if they pay for bandwidth for serving youtube?

New comment by fabioyy in "Python has had async for 10 years – why isn't it more popular?"

fabioyy — Thu, 04 Sep 2025 15:45:48 +0000

fork is extremely heavy, threads are way lighter, but still opening thousands of threads can become a problem. opening a thread just to wait for a socket operation don't make sense. and the low level requirements to use ( select/iopool syscalls ) is hard. coroutines of async/await solve this problem.

New comment by fabioyy in "AWS CEO says using AI to replace junior staff is 'Dumbest thing I've ever heard'"

fabioyy — Fri, 22 Aug 2025 17:46:35 +0000

I do not agreed. Its was not even worth without llm. Junior will always take a LOT of time from seniors. and when the junior become good enough, he will find another job. and the senior will be stuck in this loop.

junior + llm, it even worse. they become prompt engineers

New comment by fabioyy in "Ask HN: Dangers of Unsecured WiFi?"

fabioyy — Mon, 23 Sep 2024 14:33:02 +0000

unless you accepted an invalid https certified popup, its not possible, even on public wifi. or maybe you still type: http:// instead of https://, and then is easy to fake a dns response to point to a clone site

Twitter/X migrated to Cloudflare, bypassing Brazilian block

fabioyy — Wed, 18 Sep 2024 16:32:12 +0000

twitter/X migrated to Cloudflare, rendering the block imposed by the Brazilian judiciary ineffective.

will Cloudflare block twitter on brazil?

Comments URL: https://news.ycombinator.com/item?id=41582046

Points: 54

# Comments: 79

New comment by fabioyy in "SSDs have become fast, except in the cloud"

fabioyy — Tue, 20 Feb 2024 17:51:06 +0000

it is not worth to use cloud if you need a lot of iops/bandwidth

heck, its not worth for anything besides scalability

dedicated servers are wayyyy cheaper

New comment by fabioyy in "How to build a IP geolocation database from scratch?"

fabioyy — Fri, 15 Sep 2023 04:26:22 +0000

a long time ago i build a project like that but instead of relying on whois. i did a traceroute to every ipv4 address avaliable. several router hops, have a reverse dns that uses some names that include city codes, (like airport codes ). most providers have a single hop for a city. so its easy to correlate the latest router hop to a city.

New comment by fabioyy in "Ask HN: IP cameras that don't require an app or internet?"

fabioyy — Fri, 23 Jun 2023 17:03:32 +0000

A little off topic, i don´t know your use case, but you can use an old phone as webcam, they will be better in quality than any IP camera.

A little example using my old galaxy s11. ( its connected to a pc using usb, airplane mode, no internet )

https://www.youtube.com/watch?v=2CDE7PsLwzk

New comment by fabioyy in "Ask HN: Do you measure and/or mitigate CO2 in your living space?"

fabioyy — Mon, 05 Dec 2022 13:16:54 +0000

there is a ton of devices that do that on amazon. here ( Brazil/beach ) i get only 300-400 ppm, ps: i dont use gas to Cook/shower. everything is elétric

New comment by fabioyy in "Tell HN: Google Cloud suspended our production projects at 1am on Saturday"

fabioyy — Mon, 22 Aug 2022 09:41:53 +0000

i was BANNED from hetzner when i forgot to Pay ( it has been almost 10 years ).at the time i offer to Pay any debts, but they said that i was not welcome anymore.

New comment by fabioyy in "Ask HN: Hetzner banned me with no explanation. What can I do?"

fabioyy — Tue, 02 Aug 2022 20:27:16 +0000

They also banned me because I forgot to pay one month ( and my contact email was one that I didn’t use anymore ). After a year I tried to resubscribe and they denied me, ( I offered to pay any debt , but they refuse )

New comment by fabioyy in "Husky, Datadog's Third-Generation Event Store"

fabioyy — Wed, 18 May 2022 17:49:02 +0000

same here

one mistake in my logs, and my account was due > 10k us$. until a manager contact-me after a month. It appears to be a method to force a "sales" call.

A simple indicator of how much you are due ( daily ) would solve this kind of problem. ( google/reddit shows that this kind of problem happens all the time in the last 2 years )

New comment by fabioyy in "Wireless is a trap (2020)"

fabioyy — Fri, 13 May 2022 19:03:29 +0000

anyone have tried to use fiber? is there a fiber to ethernet conversor? ( to connect the playstation for example )

New comment by fabioyy in "Timescale raises $110M Series C"

fabioyy — Wed, 23 Feb 2022 08:39:41 +0000

I have done no optimization, no WAL partition, no slave (yet). i'm just using a single t3a.xlarge Aws instance with 1500 IOPS (EBS Volume).

we use 1500IOPS just to speed up our read-only jobs and reports.

i'm just using AWS EBS snapshot feature ( every hour ) for backup.

New comment by fabioyy in "Timescale raises $110M Series C"

fabioyy — Tue, 22 Feb 2022 21:22:26 +0000

i'm using timescale to store sensor/gps log ( 50 inserts/s - 24/7 ). after 2 months still very good )

New comment by fabioyy in "Serving Netflix Video at 400Gb/s on FreeBSD [pdf]"

fabioyy — Mon, 20 Sep 2021 00:11:05 +0000

have you considered dpdk?