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netvarun

2,770 karma · joined September 11, 2009

Varun Sivamani

Founder, Keygraph https://keygraph.io/ We build AI pentesting software.

Check out our open source AI pentester, Shannon (47k+ stars): https://github.com/KeygraphHQ/shannon

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netvarun··on If a Caller Says, 'I Am with the IRS,' He's Not
That's a really interesting story! I've noticed similar strange numbers appearing from those who call from a VoIP service like Skype. One heuristic I use when I see a call from an unrecognizable number is to drop the first call and take the next one (if it comes). Well meaning folks, usually will retry in a short while, while scammers will usually move onto the next target.
netvarun··on Lee Kuan Yew, Founding Father and First Premier of Singapore, Dies at 91
Because both were very clever social engineering hacks that were brought in to unite a disparate, migrant, non-homogenous group of folks to work together for the benefit of all.

Those random references I made, including playing football in the void decks, are just part of the collective Singaporean experience that has made the country as it is. All were due to the various policies crafted by LKY and his team.

Look, by the time I cared about politics or even had voted for the first time, the GREAT LEADER had already retired and was a shadow of his former self.

Having criss-crossed the globe and now running a startup that has offices in three (very) different countries, I have come to appreciate and admire the man and his vision.

I am not trying to make the man a saint. He had his flaws and there are many policies I strongly disagree with. However at the end of the day, a man's genius is measured by the number of goals he scored, subtracting off his own-goals. And his score runs pretty high.

Just to make myself clear, it's not reverence. It's respect.

netvarun··on Lee Kuan Yew, Founding Father and First Premier of Singapore, Dies at 91
I downvoted you because you cherrypicked a quote from LKY without any context and of all people, you had to quote Chee Soon Juan - that quite shows that you don't have ground reality or an understanding of Singaporean politics.

[Source: I'm Singaporean]

netvarun··on Lee Kuan Yew, Founding Father and First Premier of Singapore, Dies at 91
This is a really well-written comment. Thank you very much.

I'm Singaporean (though currently based in San Francisco) and identify myself as a supporter of the PAP.

I am currently traveling, and unfortunately got hold of LKY's passing a little late (though I had been following his health the past few days) and still feeling a little shell-shocked. I am personally very disappointed at all the comments on HN - most of them drowned out by expats and armchair political scientists.

Well if you had grown up in Singapore, read it's history, lived in HDB flats, recited the pledge and national anthem every goddamn day in school, played football at the void decks, served in the army, you will come to realize what a genius LKY was.

It's nice to see a message from a Singaporean from the other side.

netvarun··on YC Stats Winter 2015
Machine Zone (YC W08)

Source: http://blogs.wsj.com/digits/2014/07/16/newest-hit-game-maker...

netvarun··on Show HN: Docket – Do Docker Deploys through BitTorrent
I designed and built it as part of my submission to the Gopher Gala 48 hour Golang hackathon. Hope you guys like it. Please let me know if you have any feedback.
netvarun··on Open Food Facts – A free food products database
You could try hooking up the UPC to a pricing API like https://semantics3.com (Disclosure: I am one of the founders)
netvarun··on Purism Aims to Build a Philosophically Pure Laptop
The 10^6$ question is whether Richard Stallman[1] would use this?

[1]http://richard.stallman.usesthis.com/

netvarun··on Experimental KVM-based VMM, Written in Go
We've been actively using it. Just a couple of weeks ago - I managed to get it to restart processes in docker containers in a downtimeless way! I can't thank you enough for it :)
netvarun··on Experimental KVM-based VMM, Written in Go
(Off topic) Do also checkout the author's Huptime project (https://github.com/amscanne/huptime) A really simple, language agnostic way to do downtimeless restarts for any process.

It's been a lifesaver at my startup, especially when we are running many different (micro)services.

netvarun··on Experimental KVM-based VMM, Written in Go
Thank you very much for your Huptime project! It has now become an indispensable tool in my sysadmin arsenal.
netvarun··on An experimental, automatically generated set of AWS clients in Go
There is a similar Perl implementation that we use at my company (Semantics3), which uses auto generated code from the botocore - https://github.com/pplu/aws-sdk-perl
netvarun··on Magnus Carlsen – “I am chaotic and lazy” (2010)
This past two weeks, I have been reading Kasparov's "Life Imitates Chess" and your comment certainly rings true. He spends a fair number of pages discussing about Botvinnik's rigid and systematic training system and how that helped instill a strong work ethic in him. There is also a section on Casablanca and how his laziness cost him his crown to Alekhine, who was Botvinnik's predecessor.

If history serves right, I am predicting Carlsen will lose the throne to Caruana in 2016!

netvarun··on Serendipity – When 2 people listen to the same song at the same time
Off-topic: Could the admins change the link to point to the final, redirected url - https://www.spotify.com/us/arts/serendipity/ ?

Anyways, fantastic execution! Great visualization. My only super-minor complaint is the fade in/fade out could be a little less abrupt when the songs change :)

netvarun··on Visualising data structures and algorithms through animation
Steven Halim, the person behind this, was my lecturer for the competitive programming class I took in my sophomore year. Super nice guy who is really passionate about teaching!
netvarun··on 2014 Fields Medals announced
Quanta Magazine, published by the Simons Fonundation, has an article on each of the four Fields Medallists and the Nevanlinna Prize winner, Subhash Khot.

Artur Avila - A Brazilian Wunderkind Who Calms Chaos http://www.simonsfoundation.org/quanta/20140812-a-brazilian-...

Manjul Bhargava - The Musical, Magical Number Theorist http://www.simonsfoundation.org/quanta/20140812-the-musical-...

Martin Hairer - In Noisy Equations, One Who Heard Music http://www.simonsfoundation.org/quanta/20140808-in-mathemati...

Maryam Mirzakhani - A Tenacious Explorer of Abstract Surfaces http://www.simonsfoundation.org/quanta/20140812-a-tenacious-...

Subhash Khot - A Grand Vision for the Impossible http://www.simonsfoundation.org/quanta/20140812-a-grand-visi...

netvarun··on 2048 As A Service
HN formatting screws up the code :(

This will work:

    perl -e 'my $host = "http://2048.semantics3.com/hi/";my $cmd = "curl --silent -L $host"."start";my $output = `$cmd`;my $session_id = $output;$session_id=~s/.*?ID:\s(\w+).*/$1/si;my %keyMap = ( 'w' => 0, 'd' => 1, 's' => 2, 'a' => 3);print STDERR $output,"\n";while(1) { print STDERR "Input (w - up, a - left, d - right, s - down):\n"; my $userInput = <STDIN>; chomp ($userInput); if(defined($keyMap{$userInput})) { $userInput = $keyMap{$userInput}; } else { print STDERR "Invalid move.. w - up, a - left, d - right, s - down\n"; next; } my $cmd = "curl --silent $host"."state/$session_id/move/$userInput"; my $output = `$cmd`; print STDERR "\n$output\n"; if($output=~/Message:/si) { exit(0); }}'
netvarun··on 2048 As A Service
2048-as-a-service author here.

Do also checkout our demo showcase app built using the 2048-as-a-service API:

2048 - Startup Growth Edition (MVP) - http://2048.semantics3.com/2048.html

netvarun··on 2048 As A Service
2048-as-a-service author here.

Type curl -L http://2048.semantics3.com/hi/start to get started. Here is a full example on how to play it:

https://github.com/Semantics3/2048-as-a-service#full-example...

If you want a full game on the console:

    perl -e 'my $host = "http://2048.semantics3.com/hi/";my $cmd = "curl --silent -L $host"."start";my $output = `$cmd`;my $session_id = $output;$session_id=~s/.*?ID:\s(\w+).*/$1/si;my %keyMap = ( 'w' => 0, 'd' => 1, 's' => 2, 'a' => 3);print STDERR $output,"\n";while(1) { print STDERR "Input (w - up, a - left, d - right, s - down):\n"; my $userInput = <STDIN>; chomp ($userInput); if(defined($keyMap{$userInput})) { $userInput = $keyMap{$userInput}; } else { print STDERR "Invalid move.. w - up, a - left, d - right, s - down\n"; next; } my $cmd = "curl --silent $host"."state/$session_id/move/$userInput"; my $output = `$cmd`; print STDERR "\n$output\n"; if($output=~/Message:/si) { exit(0); }}'
netvarun··on Lessons learned publishing my first CPAN module
It's still alive and pretty vibrant. And of course, Perl is used extensively at my startup, Semantics3(yc w13) :)
netvarun··on Why productive people get up insanely early
Small nitpick:Satyendra Bose,is the person of 'Boson' fame -http://en.wikipedia.org/wiki/Satyendra_Nath_Bose

Higgs is of 'Higgs Boson' fame and recent Nobel laureate :)

netvarun··on How to Get Good at Chess, Fast
If you are looking for a systematic learning program, I would like to suggest Artur Yusupov's training program (9 books that gradually increase in difficulty). http://www.qualitychess.co.uk/docs/14/artur_yusupovs_awardwi...
netvarun··on What is the enlightenment I'm supposed to attain after studying finite automata?
I had come across this answer some time back, but got to revisit it again while reading another one of the author's (Vijay D. - http://www.eecs.berkeley.edu/~vijayd/#about ) answers trending on HN (https://news.ycombinator.com/item?id=6787836)

Additional discussion: https://news.ycombinator.com/item?id=6788969

netvarun··on Basic Data Structures and Algorithms in the Linux Kernel
On a (slightly) related note, you should also check out the author Vijay's (http://www.eecs.berkeley.edu/~vijayd/#about) answer on the benefits of learning Finite Automata: http://cstheory.stackexchange.com/questions/14811/what-is-th...
netvarun··on IBM Watson’s Next Venture
Me too :) varun [at] semantics3 [dot] com
netvarun··on University of Waterloo: Silicon Valley's Canadian Feeder School
No, Jeff Dean is not from UW. http://en.wikipedia.org/wiki/Jeff_Dean_(computer_scientist)
netvarun··on Search Engine Yandex Launches "Cocaine" To Compete With Google App Engine
Other than the fact that they are using docker, what I found most interesting was that they are developing support for Racket!
netvarun··on VisualPing - Get notified on visual changes to a website or website area
I am also specifically interested in what techniques they they are using to determine the levels of change - Is it based on content changes or changes in (x)html tree structure?
netvarun··on Distributed systems for fun and profit
Another really good article on distributed systems along the same lines is this one: http://www.somethingsimilar.com/2013/01/14/notes-on-distribu...
netvarun··on Goldbely (YC W13) Raises $3M Led By Intel Capital
Hmm. Goldbely's funding round was a seed round.
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