Live data from Hacker News

WiFi without internet on a Southwest flight

jamesbvaughan.com

211–220 of 675 posts

Re: WiFi without internet on a Southwest flight

#211

Earlier quoted context omitted.

Give me one example, then. Of an app which uses a notification as an actual app data source and not just as a notification which opens the app. And which also updates the primary app view to reflect this new information. No other app has updated its app state based on the content of notifications. Slack/Discord/Teams et al (the ones that aren't allowed on free messaging plans) will show you previously cached messages…

Slack/Discord/Teams ? Those are desktop web applications hosted via Electron. Failing to leverage basic platform functionality is practically their telos. It’s a trivial, documented, supported, long-standing API for a common use-case. It is widely used, as documented, for its intended purpose. I cannot share information about specific applications.

No one is asking for a survey of apps that do this. You’re making the claim that it’s far from rare, so you have enough knowledge to make this claim. Share with us the smallest piece of your knowledge by naming one single other app that does this. It’s the least you can do since you’re making the claim. Please, I’m very curious!

Re: WiFi without internet on a Southwest flight

#212

When my son was younger - maybe 9 or 10 or so, we were on a plane and he was using his phone and I looked over his shoulder and realized he was on the internet... but I hadn't paid for an internet plan. I said, "son, how are you using the internet?" He said, "oh, a kid at school showed me - if you go here" (he opened up the wifi settings where the DHCP assigned IP address is) "and start changing the numbers, eventual…

This is an amazing story. Thanks for posting.

Re: WiFi without internet on a Southwest flight

#213
post #200
post #136

“According to this data, the plane’s altitude was only fluctuating by about 20-30 feet. This is more stable than I expected!” Autopilots are very good and they are servoing to the pressure altitude. Many pressure altitude encoders used in modern aircraft (for example to drive altitudes that transponders report to SSR radar or via ADS-B) have 25 ft encoding resolution. That 25ft resolution is likely what is being seen…

A plane going up and down 20-30 feet seems like it would be very unpleasant. Considering that there's longitude and latitude, isn't it more likely that the altitude is coming from GPS, which is notoriously inaccurate with regards to elevation?

20-30 feet change over what timeframe? The resolution of the chart data in the article is about 30 seconds. While I think the fluctuation is due to the accuracy of instrumentation, 20-30 feet change over the course of a minute seems like nothing.

Re: WiFi without internet on a Southwest flight

#214

When my son was younger - maybe 9 or 10 or so, we were on a plane and he was using his phone and I looked over his shoulder and realized he was on the internet... but I hadn't paid for an internet plan. I said, "son, how are you using the internet?" He said, "oh, a kid at school showed me - if you go here" (he opened up the wifi settings where the DHCP assigned IP address is) "and start changing the numbers, eventual…

I used to do the same thing at hotels. Still often works.

  nmap -sn 192.168.0.1-255
To find everyone on the network, then start spoofing each of their MACs until you find one that works

Re: WiFi without internet on a Southwest flight

#215
post #133

Earlier quoted context omitted.

Tomorrow it'll be 8 bucks to drink water, 8 bucks to use the bathroom, ... Yeah, you can argue internet isn't a necessity. Neither is the bathroom, you can use a poo bag and a diaper. But we're a civilized society. So we provide bathrooms to anyone that needs them. And internet access.

This seems like a poor slippery slope argument. It’s not as if charging for internet is new, it’s been what? 20 years? And yet they still don’t charge for water

Still

Re: WiFi without internet on a Southwest flight

#216

I'm an Alaska (relatively) frequent flyer. That airline offers a free "messaging" plan, that lets you send and receive messages on apps like iMessage, Facebook Messenger and Whatsapp. Though, it somehow prevents images/attachments from coming through on those platforms. I've always wondered how this is implemented technically, and if it might be possible to setup some kind of protocol/wrapper to send data that looks…

Hussein Nasser covered this. His videos are great.

How Airline WIFI allows Texting but not Media in WhatsApp/iMessage

https://www.youtube.com/watch?v=AYSxxO2yZp8

Re: WiFi without internet on a Southwest flight

#217
post #133

Earlier quoted context omitted.

Tomorrow it'll be 8 bucks to drink water, 8 bucks to use the bathroom, ... Yeah, you can argue internet isn't a necessity. Neither is the bathroom, you can use a poo bag and a diaper. But we're a civilized society. So we provide bathrooms to anyone that needs them. And internet access.

This seems like a poor slippery slope argument. It’s not as if charging for internet is new, it’s been what? 20 years? And yet they still don’t charge for water

Is that an American thing? Absolutely paying for the water here.

Re: WiFi without internet on a Southwest flight

#218
post #179

Earlier quoted context omitted.

Someone will probably figure out how to send a request to disable auto-pilot or turn off the fasten seat belt sign.

the airline industry is nowhere nearly as stupid as the software industry with things like this. the communication between plane and wifi/entertainment system, if there is any, is almost certainly one-way. likely, the wifi system providing this info is receiving data from the flight systems and repeating it or transforming it a bit and providing that. it would not surprise me at all if the flight attendants have to p…

Might be one way, but that doesn't mean you can't DDoS it (by accident or otherwise).

Re: WiFi without internet on a Southwest flight

#219
post #214

When my son was younger - maybe 9 or 10 or so, we were on a plane and he was using his phone and I looked over his shoulder and realized he was on the internet... but I hadn't paid for an internet plan. I said, "son, how are you using the internet?" He said, "oh, a kid at school showed me - if you go here" (he opened up the wifi settings where the DHCP assigned IP address is) "and start changing the numbers, eventual…

I used to do the same thing at hotels. Still often works. nmap -sn 192.168.0.1-255 To find everyone on the network, then start spoofing each of their MACs until you find one that works

I should probably know the answer, but what happens when two devices have the same MAC address?

Re: WiFi without internet on a Southwest flight

#220

I'm an Alaska (relatively) frequent flyer. That airline offers a free "messaging" plan, that lets you send and receive messages on apps like iMessage, Facebook Messenger and Whatsapp. Though, it somehow prevents images/attachments from coming through on those platforms. I've always wondered how this is implemented technically, and if it might be possible to setup some kind of protocol/wrapper to send data that looks…

I'd suspect it kills TCP connections once a threshold of data has been transferred, and the threshold is enough to let text through but not enough for attachments.

Good luck doing that against Telegram. It would simply reconnect and resume the download where it left off.
Post reply on HN