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Docker can't connect to docker daemon
After I update my Docker version to 0.8.0 , I get an error message while entering sudo docker version :
40 Answers
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Should I URL-encode POST data?
...your "Content-Type" is in the HTTP headers.
A value of "application/x-www-form-urlencoded" means that your POST body will need to be URL encoded just like a GET parameter string. A value of "multipart/form-data" means that you'll be using content delimiters and NOT url encoding the content.
This an...
How to Compare Flags in C#?
... testItem.HasFlag( FlagTest.Flag1 ) )
{
// Do Stuff
}
which is much more readable, IMO.
The .NET source indicates that this performs the same logic as the accepted answer:
public Boolean HasFlag(Enum flag) {
if (!this.GetType().IsEquivalentTo(flag.GetType())) {
throw new Argument...
How to send commands when opening a tmux session inside another tmux session?
...new-window) in a second-level instance of tmux, you would type C-b C-b c. For a third-level instance of tmux you would type C-b C-b C-b C-b c.
This doubling for each level can be annoying if you are commonly dealing with multiple layers of tmux. If you can spare some other key, you could make a non...
What are all the possible values for HTTP “Content-Type” header?
I have to validate the Content-Type header value before passing it to an HTTP request.
4 Answers
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Node.JS constant for platform-specific new line?
Is there a constant available in Node.JS for a newline character that is specific to the platform the application is running on?
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Understanding garbage collection in .NET
...nager, change the "Active solution configuration" combo in the upper left corner to "Release". Next, go into Tools + Options, Debugging, General and untick the "Suppress JIT optimization" option.
Now run your program again and tinker with the source code. Note how the extra braces have no effect ...
What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?
...nonical path.
.\file.txt - This is a path. It's neither an absolute path nor a canonical path.
C:\temp\myapp\bin\..\\..\file.txt - This is a path and an absolute path. It's not a canonical path.
A canonical path is always an absolute path.
Converting from a path to a canonical path makes it abso...
Why should I not wrap every block in “try”-“catch”?
...ogging) at the highest level of the call stack to ensure that any fatal errors are logged.
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How do I see the extensions loaded by PHP?
...ning php -m will give you all the modules, and php -i will give you a lot more detailed information on what the current configuration.
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