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What is middleware exactly?

...on of middleware? When I look into middleware, I find a lot of information and some definitions, but while reading these information and definitions, it seems that mostly all 'wares' are in the middle of something. So, are all things middleware? ...
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virtualenv --no-site-packages and pip still finding global packages?

...on that virtualenv --no-site-packages would create a completely separate and isolated Python environment, but it doesn't seem to. ...
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“No X11 DISPLAY variable” - what does it mean?

...erent userid, this will fail. If you're coming in from another machine, and you're at the main display of that machine and it's running X, then you can use "ssh -X hostname" to connect to that host, and ssh will forward the X display back. ssh will also make sure that the DISPLAY environment var...
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Does ruby have real multithreading?

...e confusing two very different things here: the Ruby Programming Language and the specific threading model of one specific implementation of the Ruby Programming Language. There are currently around 11 different implementations of the Ruby Programming Language, with very different and unique thr...
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Constant Amortized Time

...erations". Amortised time doesn't have to be constant; you can have linear and logarithmic amortised time or whatever else. Let's take mats' example of a dynamic array, to which you repeatedly add new items. Normally adding an item takes constant time (that is, O(1)). But each time the array is ful...
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Redis - Connect to Remote Server

...will tell you if it is listening where you think it is. If not, restart it and be sure it restarts. If it restarts and still is not listening where you expect, check your config file just to be sure. After establishing it is listening where you expect it to, from a remote node which should have acc...
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MsDeploy is returning 403 forbidden

We had a Web Application working on an intranet and I'm trying to publish it to the internet using Visual Studio 2010. The destination server is running iis7 and the Web Management Service is running. ...
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Remove header and footer from window.print()

I am using window.print() for printing page, but I got header and footer contains page title, file path, page number and date. How to remove them? ...
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Detect if an input has text in it using CSS — on a page I am visiting and do not control?

... input has text in it via CSS? I've tried using the :empty pseudo-class, and I've tried using [value=""] , neither of which worked. I can't seem to find a single solution to this. ...
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What is the purpose of the var keyword and when should I use it (or omit it)?

What exactly is the function of the var keyword in JavaScript, and what is the difference between 19 Answers ...