w8rbt

Joined 12 years ago

Karma

1,857

Submissions

632

Member since

Oct 2

[ my public key: https://keybase.io/w8rbt; my proof: https://keybase.io/w8rbt/sigs/kKhQPR9DV30u4BLVAipAEeTFptKrcKQmGN_0dNj_5Xw ]

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Recent submissions

Comment · 7 years ago

If managers come to developers with problems that are NP complete, no matter how well they transfer the idea/vision, or set time expectations, the problem cannot be solved efficiently. And, unless the developers have been trained in CS/Math they may not even understand that what they are being asked to do cannot be done.

For example, say a manager has an idea to find the largest group of friends in a massive social network. He wants a developer to write an app for that and has a 20K budget and 2 months. You could not write this app with 10 times that budget or time.

How can you determine which group of friends is the largest?

https://en.wikipedia.org/wiki/Clique_problem

https://en.wikipedia.org/wiki/List_of_NP-complete_problems

Comment · 7 years ago

You could also get a free Udacity account and watch the Georgia Tech CS Master classes (OMSCS). Algorithms, Machine Learning, Operating Systems, etc. It's a good program.

Comment · 7 years ago

This is my biggest issue with Python. I absolutely love the language, but Python 3 ought to be Python 3 no matter where/how you got it. If you are using 3.5 and I'm using 3.7 we ought to be able to share code and things just work. Unfortunately, that is not the case.

Comment · 7 years ago

If you majored in CS at university, you probably suffered through a lot of it. It sinks in after awhile and is rather useful.

Comment · 7 years ago

I did use it then and I never experienced that. I bet it was some unrelated coincidence. They would not do that.

Comment · 7 years ago

I have never heard this. Can you provide a link with more details?

Comment · 7 years ago

I hope we keep it. It matches the maps I have from 7th grade.

Comment · 7 years ago

Right, thanks. And I hope my question does not sound too critical. I was just genuinely curious why JS was used.

I think JS is fine for small to mid-sized tasks, prototyping and testing ideas. However, for real DNS servers, used by a lot of clients, I believe C, C++, Go or Rust would be an absolute requirement.

Comment · 7 years ago

I never imagined someone would write a recursive DNS sever in javascript. Have they explained why they chose javascript? It can't perform well nor scale and they even sort of admit that:

https://github.com/handshake-org/hsd#unbound-support

Comment · 7 years ago

Absolutely, but a great idea when combined with other defensive tactics. Obscurity is why armies use camouflage.

Comment · 7 years ago

I use CoreDNS as a stub resolver to do DNS over TLS. It works great. https://coredns.io/

Comment · 7 years ago

It's 2^15 rounds of pbkdf2 with long inputs. There is no master password as nothing is stored. Good luck.

Comment · 7 years ago

This is one reason why I believe that browser based password managers are flawed. I've written about this in the past (link below). These apps are popular with normal people (due to convenience), but long-term, we should not trust web browsers plugins or add-ons as password managers.

https://github.com/w8rbt/dpg#why-traditional-password-manage...

Comment · 7 years ago

I like to think that Go is C for the Cloud.

And don't let detractors get you down. No matter what you do, or how successful you are, there will always be critics. Ignore them.