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Cannot download Docker images behind a proxy
...A quick outline:
First, create a systemd drop-in directory for the Docker service:
mkdir /etc/systemd/system/docker.service.d
Now create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:
[Service]
Environment="HTTP_PROXY=http://pro...
What is the meaning and difference between subject, user and principal?
... Consider two principals where #123 is John and #124 refers to a service account. We probably want to treat these different regarding things like password policy, login capability, etc. Principals of type 'user' are subject to password complexity and expiry policies whereas principals of t...
What is an idempotent operation?
...potent.
Idempotence is talked about a lot in the context of "RESTful" web services. REST seeks to maximally leverage HTTP to give programs access to web content, and is usually set in contrast to SOAP-based web services, which just tunnel remote procedure call style services inside HTTP requests a...
How should a model be structured in MVC? [closed]
...le to store data, and your Data Mappers are parsing from and to XML files.
Services
You can think of them as "higher level Domain Objects", but instead of business logic, Services are responsible for interaction between Domain Objects and Mappers. These structures end up creating a "public" interfa...
Amazon products API - Looking for basic overview and information
...u're having trouble finding information on the API, that's because the web service has undergone two name changes in recent history: it was also known as ECS and AAWS.
The signature process you're referring to is the same HMAC signature that all of the other AWS services use for authentication. All ...
HTML5 check if audio is playing?
... thread, I use this implementation to figure out if the sound is playing:
service.currentAudio = new Audio();
var isPlaying = function () {
return service.currentAudio
&& service.currentAudio.currentTime > 0
&& !service.currentAudio.paused
&& ...
How to start nginx via different port(other than 80)
...
listen 81;
}
To start the server, run the command line below;
sudo service nginx start
You may now access your application on port 81 (for localhost, http://localhost:81).
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What's an appropriate HTTP status code to return by a REST API service for a validation failure?
...as not made it into HTTP 1.1, RFC-7231.
Richardson and Ruby's RESTful Web Services contains a very helpful appendix on when to use the various HTTP response codes. They say:
400 (“Bad Request”)
Importance: High.
This is the generic client-side error status, used when no other 4xx error...
Why is Hibernate Open Session in View considered a bad practice?
...garding performance, i think the problem is quite similar than to access a service layer that will return your dto. If you face a performance problem, then you should optimize that specific issue with a smarter query or a more lightweight dto. If you have to develop too many service methods to hand...
Android 4.3 Bluetooth Low Energy unstable
...ising
Better not use android.bluetooth.BluetoothAdapter#startLeScan(UUID[] serviceUuids, LeScanCallback callback) with the parameter to filter for certain service UUIDs because this is broken completely in Samsung Galaxy S3 with Android 4.3 and doesn't work for 128bit UUIDs in general.
Gatt always c...