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Virtualbox “port forward” from Guest to Host [closed]
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If using NAT for the guest... If the service that is running on the host is bound to 127.0.0.1 only, then the guest cannot use the public ip of the host to connect to that service (example service: privoxy). Instead you need to use 10.0.2.2 as mentioned by Mark...
Collections.emptyMap() vs new HashMap()
...se case is when you need to provide an argument as an input to a method or service. Unless you expect the input collection to be modified by the service or method (which is usually a really bad design idea), passing in an immutable collection instead of the mutable one might be the reasonable and sa...
Putty: Getting Server refused our key Error
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! sudo service ssh restart for the changes to take effect. Otherwise there was nothing in my auth log-file.
– hogan
Nov 18 '16 at 20:02
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BasicHttpBinding vs WsHttpBinding vs WebHttpBinding
...ically just hit a URL and get back a truckload of XML or JSON from the web service
basicHttpBinding and wsHttpBinding are two SOAP-based bindings which is quite different from REST. SOAP has the advantage of having WSDL and XSD to describe the service, its methods, and the data being passed around ...
postgresql port confusion 5433 or 5432?
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/etc/services is only advisory, it's a listing of well-known ports. It doesn't mean that anything is actually running on that port or that the named service will run on that port.
In PostgreSQL's case it's typical to use port 543...
How can I read a text file without locking it?
I have a windows service writes its log in a text file in a simple format.
7 Answers
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Recommended way to get hostname in Java
... Amazon EC2 AMI Linux instance: java.net.UnknownHostException: Name or service not known java.net.InetAddress.getLocalHost(InetAddress.java:1438)
– Marquez
Mar 18 '13 at 13:42
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Difference between scaling horizontally and vertically for databases [closed]
...e is an additional architecture that wasn't mentioned - SQL-based database services that enable horizontal scaling without the complexity of manual sharding. These services do the sharding in the background, so they enable you to run a traditional SQL database and scale out like you would with NoSQL...
How to refresh app upon shaking the device?
... /* do this in onCreate */
mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
mSensorManager.registerListener(mSensorListener, mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
mAccel = 0.00f;
mAccelCurrent = Sen...
How do you increase the max number of concurrent connections in Apache?
...hreads determined by ThreadsPerChild parameter so this means 2 process can service only 50 concurrent connections/clients i.e. 25x2=50. Now if more concurrent users comes, then another child process will start, that can service another 25 users. But how many child processes can be started is control...