Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Introduction This article is focused on the upgrading mechanism of container images. There are various methods to upgrade a container to its newest image. Here we have used some of the simple and easy-to-use methods. First, we discussed the manual method for a quick test. Then we tried some automatic methods. These methods will monitor the image and if any new update is present, they create a new container with the updated image. Methods Manually but using CLI Automatic but using CLI Automatic but using Docker Compose Manually but using CLI Here we are going to follow ... Read More
Introduction Connection in Docker container can be made using various ways. Some of these are explained in this article. Docker networking using the command line interface and docker-compose. This networking leads to communication between the containers. Pre-requisites Install the below prerequisites before executing the commands. Docker Engine Docker compose Methods These methods are simple and easy to implement on the local machine. Using CLI commands Using Docker Compose Using Command Line Interface Here we are going to create two different containers and connect them using the docker networking features. Step 1: Create a Docker network $ ... Read More
Introduction The main goal of this article is to find out the if the process is on the container. We have discussed several methods that could help us to filter out the non-container machine from the container once. Simple commands and some special kernel files are used to conclude our point. Pre-requisite To implement the complete article on your setup machine, you need to have the below-listed prerequisites − Linux OS: Ubuntu Docker Daemon and Client Methods Some of the methods that help identify the machine are listed below. The machine could be a container or a ... Read More
Introduction Bugs are bugging mankind since ancient times. At that time they produced different diseases but today’s bugs are logical errors in the program. Sometimes these are also a nightmare for developers. Here in this article, we will learn to create a Node.js app on a Docker container and also how to attach a debugger to the node application. What is debugging? Debugging is nothing but resolving the issues or errors in the code of the Node.js application. This application might be going through a rough time implementing all the tasks given to it. Debugging helps in smoothing all ... Read More
Introduction Security has always been a great threat to mankind. In IT the security of credentials is a tedious task. Here, we are going to discuss various methods to add the credentials to the docker container. Also, the most useful and secure methods are mentioned. Methods Adding credentials can be done in a lot of different ways. Some of the types are mentioned below. Each method has its place in the industry. Some are just rejected by the developers due to security issues and some works very well in the case of credential security. Using the Build ... Read More
IPSec is a suite of protocols that provides security services during communications between networks. It supports network-level peer authentication, data origin authentication, data integrity, data encryption and decryption. It is often used to create a VPN.SSL is a networking protocol that provides a secure connection between a client and a server over the internet. It works at the transport layer. It is often used to secure the communication between a web browser and a web server.Read through this article to find out more about IPSec and SSL and how they are different from each other.What is IP Security (IPSec)?IPSec is ... Read More
CRT and LCD are both display devices. CRT is an old technology whereas LCD is modern one. One major difference between CRT and LCD is in the technology used for image formation. The CRT display produces an image by using an electron beam, while LCD display produces an image on the screen using liquid crystal display. What is a CRT? CRT stands for Cathode Ray Tube. CRT displays produce an image on the screen by using a sharp beam of electrons that is highly focused to hit a phosphor screen present in front of the tube. The important components of ... Read More
JavaScript is a lightweight and interpreted language, therefore, inside the context of a web browser, you don't even need to buy a compiler. You can start with a simple text editor such as Notepad. To make our life simpler, various vendors have come up with very nice JavaScript editing tools. Some of them are listed here − Microsoft FrontPage − Microsoft has developed a popular HTML editor called FrontPage. FrontPage also provides web developers with a number of JavaScript tools to assist in the creation of interactive websites. Macromedia Dreamweaver MX − Macromedia Dreamweaver MX is a very popular ... Read More
In JavaScript, the NaN property is a special value that represents "Not a Number". It is a property of the Number object and can be accessed using Number.NaN. The NaN property is usually produced as a result of an operation that cannot produce a meaningful result. For example, dividing 0 by 0 or trying to parse an invalid number will both produce NaN. Here are a few examples of operations that will produce NaN − Math.sqrt(-1); // NaN 0/0; // NaN parseInt("foo"); // NaN It ... Read More
In Java, Array is an object. It is a non-primitive data type which stores values of similar data type. As per the problem statement we have to increment all negative numbers by 1 and decrement all positive numbers by 1. Let’s explore the article to see how it can be done by using Java programming language. To Show You Some Instances Instance-1 Suppose the original array is {12, 21, -31, -14, 56, 16, 17, -18, 9} After updating the array element are: -30 -17 -13 8 11 15 16 20 55 (sorted) Instance-2 Suppose the original array is {19, ... Read More