hipaulshi
Joined 13 years ago
Karma
332
Submissions
78
Member since
Mar 6
[ my public key: https://keybase.io/jianershi; my proof: https://keybase.io/jianershi/sigs/4EeVyuUZk24x9SPO_b4H6HFtLziaezbEwqKm14dPnv4 ]
View on Hacker NewsRecent submissions
Comment · 6 years ago
Do people still remember Telegram don't have E2E encryption on by default? and does not work across multiple platforms when E2E is on? I am annoyed because those are my favorite apps and they don't have what's important.
Comment · 8 years ago
I am learning Japanese. Ever since d-addict took down their torrent section. It was almost to impossible to find quality content with Japanese subtitles. I now rely on Netflix Japan, but the content is still very limited.
Comment · 9 years ago
Pilot here.
Every airplane has a maximum weight it can fly. Different than cars, every airplanes also have an envelope where the center of gravity has to fall enter. If the center of gravity is behind the design envelope, airplane has a tendency to flip backward, stall on take off then crash, it has happened before. It could also means if the airplane enters a spin, the recover may not be possible. If the center of gravity is too forward, it will slow the cruising speed due to increased drag, much easier to stall during cruise and burning more fuel.
So for every single flight, pilot or dispatch has to calculate those 2 numbers, for every passenger and baggage, and decide how many fuel to take on each flight.
Of course, asking each passengers weight would be awkward at best, so airlines and FAA used an average body weight number to avoid this, it worked until 2003. An accident happened which killed 21 people on board a small transportation aircraft. It is found that the average body weight number FAA and airline used were outdated http://www.ntsb.gov/Investigations/AccidentReports/Pages/AAR... FAA has since advised airlines that what FAA presumed average weight of its population has increased, and advised airlines to do the same.
Of course, this will only work on average cases, and will fail if the sample group is out of average. Resampling has to be done to remain operating in the envelope, and if standard deviation is still out of normal, each individual weight has to be taken.
Comment · 10 years ago
the end of the story just made me smile :)
Comment · 10 years ago
So I updated to iOS latest Anyconnect. Which claims now support ipv6. But after some testing, it seems like the iOS app will not tunnel ipv6 traffic when the server doesn't support ipv6 in the first place. But instead of dropping all ipv6 traffic, all ipv6 traffic will go through local connection if your local connection support ipv6.
Not sure if it is a intentional design choice or serious bug? While I haven't looked very deep into it but I doubt ipv6 connections got dumped to local is encrypted in anyway. Mac version doesn't seem to be have this problem and properly dumped ipv6 link when the vpn server doesn't support ipv6.
Comment · 10 years ago
Wow!! Wow!!! Wowww!!!! That is SOOO COOL!!! >.<
Comment · 10 years ago
10USD from San Jose to SF?! AWESOME
Comment · 10 years ago
Maybe I shall starting offer 1m USD dollars for leaking this said software to me. O.k. I am just kidding, but just imagine how much some organizations are willing to offer to get hands on this. Will you ever trust Apple again if it known this software is leaked? What if such software is leaked to a competitor corporate? What is such software is leaked to an enemy spy agency? Apple will be very doomed.
Comment · 11 years ago
lol.. I would have thought they have the fastest data center.
Comment · 11 years ago
setup a server with aliyun. the cloud service provider from alibaba. And relay the traffic from there.
Comment · 11 years ago
As far as Microsoft office in Beijing, I think they VPN to their Tokyo office first. Their traffic is ensured by negotiating directly with the big telecom company. Disclaimer: I do not work for them.
Comment · 11 years ago
@olalonde GFW is known to tighten the control on national holidays or any event they see fit. The day after Tianjin explosion, IKEV2 stopped working for 1 day on my network (I was in Beijing). PPTP from time to time suffer the same issue though I couldn't say when. Also check your ip location, I found out one provider was having reliable PPTP connection about a week ago, and it turned out they were just relaying traffic in a data center in China. Those traffic are not blocked by GFW as long as it is domestic and I could only imagine that data center simply forwarded the traffic onward using other means.
Comment · 11 years ago
SSH dynamic port forwarding is no longer working for years. It is so easily picked up by GFW and minutes later it is gone together with the whole SSH connection. So does PPTP and L2TP VPN. GFW has been upgraded so many times for the past few years. The target audience is developers. The install is super simple via one line of `pip install`, the start code for daemon is also one line with the configuration inline or through <10 lines of json. On the client side the author and other contributors developed native clients that allow connection by supplying just 1 password and 1 server address. Super simple and highly reliable to this day.