Tutorial by Examples: l

Both connecting to a remove SSH server and accepting SSH connections require installation of openssh Debian: # apt-get install openssh Arch Linux: # pacman -S openssh Yum: # yum install openssh

To generate keys for SSH client: ssh-keygen [-t rsa | rsa1 | dsa ] [-C <comment>] [-b bits] For example: ssh-keygen -t rsa -b 4096 - C [email protected] Default location is ~/.ssh/id_rsa for private and ~/.ssh/id_rsa.pub for public key. For more info, please visit man.openbsd.org

Detailed instructions on getting ssas set up or installed.

Detailed instructions on getting visual-foxpro set up or installed.

Usually we struggle through the process of making login in the Raspberry Pi using ssh or other similar tools. But we can make the process more pleasent. Once your Raspberry Pi is connected to a network it gets an IPv4 address and an IPv6 address, that is based on the NIC's MAC address. The good thi...

this can also be cv-qualified, the same as any other pointer. However, due to the this parameter not being listed in the parameter list, special syntax is required for this; the cv-qualifiers are listed after the parameter list, but before the function's body. struct ThisCVQ { void no_qualifi...

C++11 Similarly to this cv-qualifiers, we can also apply ref-qualifiers to *this. Ref-qualifiers are used to choose between normal and rvalue reference semantics, allowing the compiler to use either copy or move semantics depending on which are more appropriate, and are applied to *this instead of...

Objective-C //Displays the country pickerView with black background and white text [self. countryPicker setValue:[UIColor whiteColor] forKey:@"textColor"]; [self. countryPicker setValue:[UIColor blackColor] forKey:@"backgroundColor"]; Swift let color1 = UIColor(colorLitera...

This is a porting of set up sourced from DigitalOcean's tutorial of How To Serve Flask Applications with uWSGI and Nginx on Ubuntu 14.04 and some useful git resources for nginx servers. Flask Application This tutorial assume you use Ubuntu. locate var/www/ folder. Create your web app folder m...

Custom Post Type Archive: To create an archive template for a custom post type you have to set the has_archive argument equal to true in your register_post_type() function. In the example below a custom post type is created for an Event post type. add_action( 'init', 'create_events_post_type' );...

First off, let's assume this is your initial model, inside an application called discography: from django.db import models class Album(models.Model): name = models.CharField(max_length=255) artist = models.CharField(max_length=255) Now, you realize that you want to use a ForeignKey ...

You could describe variable affectation in different ways. Typed int a = 1 int a := 1 let int a = 1 int a <- 1 No type a = 1 a := 1 let a = 1 a <- 1

Akka Streams allows you to easily create a stream leveraging the power of the Akka framework without explicitly defining actor behaviors and messages. Every stream will have at least one Source (origin of the data) and at least one Sink (destination of the data). import akka.actor.ActorSystem impo...

An example implementation of BubbleSort in C++: void bubbleSort(vector<int>numbers) { for(int i = numbers.size() - 1; i >= 0; i--) { for(int j = 1; j <= i; j++) { if(numbers[j-1] > numbers[j]) { swap(numbers[j-1],numbers(...

By utilizing the pre_save we can determine if a save action on our database was about updating an existing object or creating a new one. In order to achieve this you can check the state of the model object: @receiver(pre_save, sender=User) def pre_save_user(sender, instance, **kwargs): ...

Download the .jar file from vaadin add-ons And put it in the lib folder of WEB-INF then right click on the .jar file and click on to Build Path --> Add To Build Path

public class QuickSort { private static int Partition(int[] input, int low, int high) { var pivot = input[high]; var i = low - 1; for (var j = low; j <= high - 1; j++) { if (input[j] <= pivot) { i++; ...

An example of a constraint as expressed in the C standard is having two variables of the same name declared in a scope1), for example: void foo(int bar) { int var; double var; } This code breaches the constraint and must produce a diagnostic message at compile time. This is very usef...

// initialize library $this->load->library('form_validation'); $this->form_validation->set_rules('username', 'Username', 'required|max_length[20]'); // Add validation rules for require and max $this->form_validation->set_rules('password', 'Password', 'required|matches[passw...

We have a DataListComponent that shows a data we pull from a service. DataListComponent also has a PagerComponent as it's child. PagerComponent creates page number list based on total number of pages it gets from the DataListComponent. PagerComponent also lets the DataListComponent know when user c...