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What is the best Distributed Brute Force countermeasure?

...so far I'm winning (so to speak). But I've run into a pretty non-trivial challenge (one that most auth libraries miss entirely, but I insist on handling it properly): how to deal intelligently with large-scale, distributed, variable-username brute-force attacks . ...
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Sticky and NON-Sticky sessions

..., a session object is created and remains in the memory of the web server. All the requests from the client go to this web server and update this session object. If some data needs to be stored in the session object over the period of interaction, it is stored in this session object and stays there ...
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What are the main uses of yield(), and how does it differ from join() and interrupt()?

...m a little bit confused about the use of yield() method in Java, specifically in the example code below. I've also read that yield() is 'used to prevent execution of a thread'. ...
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Install dependencies globally and locally using package.json

Using npm we can install the modules globally using -g option. How can we do this in the package.json file? 6 Answers ...
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What exactly do the Vagrant commands do?

...produces the information that you may need. vagrant gem is used to install Vagrant plugins via the RubyGems system. In fact, vagrant gem is just a frontend to the actual gem interface, with the difference being that Vagrant sets up a custom directory where gems are installed so that they a...
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How to limit the amount of concurrent async I/O operations?

... Stephen Toub, but the less announced news is that the async semaphore actually made it into the Beta release of .NET 4.5 If you look at our beloved SemaphoreSlim class (which you should be using since it's more performant than the original Semaphore), it now boasts the WaitAsync(...) series of ove...
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Why is lock(this) {…} bad?

... It is bad form to use this in lock statements because it is generally out of your control who else might be locking on that object. In order to properly plan parallel operations, special care should be taken to consider possible deadlock situations, and having an unknown number of lock en...
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What is causing “Unable to allocate memory for pool” in PHP?

I've occasionally run up against a server's memory allocation limit, particularly with a bloated application like Wordpress, but never encountered "Unable to allocate memory for pool" and having trouble tracking down any information. ...
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How to quickly clear a JavaScript Object?

...object). In this example, I believe setting the length to 0 still leaves all of the elements for garbage collection. You could add this to Object.prototype if it's something you'd frequently use. Yes it's linear in complexity, but anything that doesn't do garbage collection later will be. This is ...
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Python: Get relative path from comparing two absolute paths

...ou can even handle more than two paths, with this method, and test whether all the paths are all below one of them. PS: depending on how your paths look like, you might want to perform some normalization first (this is useful in situations where one does not know whether they always end with '/' or...