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SSH configuration: override the default username [closed]

...ostName example.net User buck The second example will set a username and is hostname specific, while the first example sets a username only. And when you use the second one you don't need to use ssh example.net; ssh example will be enough. ...
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Implementation difference between Aggregation and Composition in Java

I'm aware of the conceptual differences between Aggregation and Composition. Can someone tell me the implementation difference in Java between them with examples? ...
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How to start two threads at “exactly” the same time

The threads should start at same split second. I understand, if you do thread1.start() , it will take some milliseconds before the next execution of thread2.start() . ...
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optional parameters in SQL Server stored proc?

I'm writing some stored procs in SQL Server 2008, and wondered if the concept of optional input parameters is possible here? ...
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MIT vs GPL license [closed]

... It seems to me that the chief difference between the MIT license and GPL is that the MIT doesn't require modifications be open sourced whereas the GPL does. True - in general. You don't have to open-source your changes if you're using GPL. You could modify it and use it for your own purp...
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What are best practices for using SmtpClient, SendAsync and Dispose under .NET 4.0

...en before await was available. This is a traditional callback using event handlers. await should be used if using the newer SendMailAsync. – TheCodeKing Jan 10 '15 at 11:05 ...
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Sort Dictionary by keys

...ry. However, 'Dictionary' is also a 'CollectionType' of (key, value) pairs and we can use the global 'sorted' function to get a sorted array containg both keys and values, like this: let sortedKeysAndValues = sorted(dictionary) { $0.0 < $1.0 } println(sortedKeysAndValues) // [(A, [1, 2]), (D, [5...
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Debugging iframes with Chrome developer tools

I'd like to use the Chrome developer console to look at variables and DOM elements in my app, but the app exists inside an iframe (since it's an OpenSocial app). ...
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How do I create a category in Xcode 6 or higher?

...; File Select Objective-C file under Sources in iOS or Mac OS respectively and Click Next Now under File Type: choose either Category, Protocol, or Extension PS. Under File Name: whatever you type here will be either the Category, Protocol, or Extension Name. ...
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HTML5 best practices; section/header/aside/article elements

There is enough information about HTML5 on the web (and also on stackoverflow), but now I'm curious about the "best practices". Tags like section/headers/article are new, and everyone has different opinions about when/where you should use these tags. So what do you guys think of the following layout...