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rbsn

189 karma · joined January 6, 2013

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rbsn··on It's All About Time – Remote timing attacks in PHP
How can you actually make sensitive operations take constant time? This sounds impossibly hard. For example, your operating system could be context switching thousands of times per second. Your password comparison function could cause a page fault because the trailing end of the password spans onto another page of virtual memory. These are all factors that would throw any calculation for constant time out of the window.
rbsn··on Yahoo Mail moving to React
Just to follow up on topic of WhatsApp and Erlang, here is a presentation given at Erlang Factory 2014 about their goals with scaling WhatsApp to billions of simultaneous users.

http://youtu.be/c12cYAUTXXs

rbsn··on Senator Al Franken's Letter to Uber [pdf]
He did spell organisation correctly, just used British rather than of American English.
rbsn··on Show HN: Visualizing the Utilization of ALOHAnet
A small webpage I put together using JavaScript and Chart.js to help show the difference in utilization that can be achieved between slotted and unslotted ALOHAnet.
rbsn··on Brazil builds its own fiber optic network to avoid the NSA
Can you not have end to end encryption of the frames that go over the wire? I guess it's immensely expensive when you're transmitting at 100Gb/s.
rbsn··on 0h h1 – A little logic game
Oh wow. These were installed on all the computers at school. We would often have hours where we didn't have any lessons scheduled, but couldn't play games, watch YouTube or go on Facebook as we would get our accounts suspended. This was the only game we could play as we could argue that it was technically "learning". The other one was a website where you had to name and locate all states in the USA. We are a British school.
rbsn··on Transatlantic flying: Wow throws a curve-ball
British Airways does offer quite a competitive service. Now that Willie Walsh has stopped IAG bleeding cash from the acquisition of Iberia (an airline desperately in debt) they're turning a healthy profit for an airline - a complete parallel universe to what is happening at AA.
rbsn··on Show HN: Got Bored This Afternoon – Made a Terminal Emulator in HTML5
Hi, thanks for your comments. You can type help to see a list of commands that are support.

To answer your question about cd, mv, nano, etc I made this in the few hours I had yesterday afternoon, so I'm afraid I only had time to implement a small subset of commands.

I've now put it up on GitHub (https://github.com/grbsn/web-sh). I hope people can use it as a starting point to build their own web based console applications. Let's see how it goes!

rbsn··on Ask HN: Cheap and Cheerful Laptop for BSD/Linux: what are my options?
Nope. I'm actually looking at second hand ThinkPads, T series.
rbsn··on Lowly DSL poised for gigabit speed boost
We're getting hooked up at home with FTTP this month with Gigaclear. Up to 1000Mbps symmetric up and down.
rbsn··on Sacrificial Architecture
Are you speaking of COBOL or C++?
rbsn··on Twitter Natural Language Processing
Birthday paradox!
rbsn··on Yes, we’re being bought by Microsoft
Haha, I read that and thought exactly the same!
rbsn··on HAProxy 1.5
How embarrassing for OP!
rbsn··on When should I not kill -9 a process?
How is it anything like that?
rbsn··on The C10K problem
Can we see your results?
rbsn··on My Startup, a Retrospective
Could your performance problems be closer related to http://news.rapgenius.com/James-somers-herokus-ugly-secret-a... than the performance of Django or your code?
rbsn··on Survey for Dissertation: Web Analytics in the Cloud for Large Scale Websites
I am an undergraduate student in my final year at university. I am undertaking a dissertation to look at developing an open source web analytics package for large scale websites.

I want to understand how individuals, companies and organisations feel about their web analytics software, the security and privacy of the data collected through web analytics and if their is a demand for an open source web analytics designed for large scale websites, such as the BBC, Reuters, Hacker News, etc.

Thank you for your time!

rbsn··on PHP is as secure as any other major language
I am confused as to whether this article is trying to compare the security of the language implementations (PHP Interpreter, JVM, Ruby Interpreter, V8) or what vulnerabilities can be exposed in programs written in the language (SQL injection, non thread safe, stack overflows) etc.
rbsn··on PHP is as secure as any other major language
Exactly! Just because you choose to drive your car into a brick wall at 100mph, it doesn't mean your car is unsafe.
rbsn··on AOL CEO Tim Armstrong Apologizes For Firing Employee
This is really quite shocking. Surely there is something unlawful about publicly firing an employee in this way. All that needed to be said was "Please stop filming".
rbsn··on How Your Brain Becomes Addicted to Caffeine
I generally don't drink coffee because it makes your breath smell. It is really awful when you're talking to colleagues or clients with "coffee breathe".
rbsn··on Ask HN: Programmers - from Good to Great. How do you make it?
I agree. I also wonder if many of the great programmers would consider themselves great?
rbsn··on Poll: Full-time software engineers over 200k, how'd you get there?
Is there stack ranking even at level 62? :)
rbsn··on Poll: Full-time software engineers in London, what's your annual salary?
What about job applications? Almost every job application requires a degree in CS?
rbsn··on [dead]
I have an exam in Algorithm Design and Analysis coming up in the first week on July, and have been practicing implementing a number of the algorithm design questions in past papers. They are usually obscure questions around some sort of bin packing or placement. I attempted to implement this question described in the Gist using JavaScript and would like to get some feedback on my attempt. Thanks!
rbsn··on Free private Github repos for students and edu people
I agree with the enjoyment factor. I hate using BitBucket, I can't quite explain why. It feels neglected and the website layout hasn't been given much thought.
rbsn··on Free private Github repos for students and edu people
"Github is great for everyone but agencies who have a high number of repositories."

This is the single reason we cannot use GitHub, it would cost £1000s.

rbsn··on Free private Github repos for students and edu people
I have a student account on GitHub and I use BitBucket for private repositories with my employer. I prefer the GitHub website so much more. Better design, better graphs, you can get an overview of who in your team has committed in a time period (Pulse), better README, better commit history layout, more service hooks (no Trello support for BitBucket is annoying considering we use Trello for organizing and managing our projects), to mention a few.
rbsn··on Free private Github repos for students and edu people
I do agree that by charging by repository count they are losing a large number of customers who run small web design and development shops. If GitHub price per person rather than per repository, they would gain so many more paid for customers.
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