Posts

Create Directory in HDFS Takes the path URI’s like an argument and creates a directory or multiple directories. Remember that you must create a home directory in HDFS with your system’s username. For example, you are logged in as hduser on your system, So first create /user/hduser else you will get this error, Now create directory structure inside it Copy Files to HDFS After creating directory structure, Now put some files to HDFS from your local file system....

The increased exposure to RF-EMF radiation is due to the fact that 5G wireless service will be delivered via powerful millimeter-sized waves at higher frequencies than used in the past, 5G towers will be located very close to humans, and many more towers will be needed to deliver 5G service than prior wireless technologies. The impending barrage of 5G millimeter-sized radiation raises real health concerns, especially since recent health studies indicate cell phone radiation exposure is more harmful than previously thought....

Michael H I added movement to some of my photos. The first animation I made was a moving Star Wars toy. After taking a series of pictures with the arm moving I turned it into a GIF. One of the reasons I like it is that toys are not supposed to move by themselves. It is unexpected and unrealistic. Like a painting, it can be more appealing than real life....

This tutorial uses array_push() function to insert or append a new element to end of the Array. PHP – Append Element to Array The following example creates an initial array with two elements (as “black”,”blue”). After that add use array_push() function to append new element “white” to the array. Output:

Unity uses C# programming language and offers tutorials, courses, and projects to help you get started. There are also some projects to build games visually, with no programming necessary. If you are interested in getting up to speed and need a little help in addition to what Unity offers, a guide like Learning C# by Developing Games with Unity 2019 will do the trick. The scope of Unity is widening rapidly, and they are developing a wide array of industry partnerships and projects....

Most Linux distributions use OpenSSH as the default application as an SSH server. It encrypts all traffic throughout the route and provides a higher level of security. This article describes you to change the OpenSSH server port on a Linux system. Change SSH Port in Linux Changing SSH port is a straightforward process in Linux systems. Any system can use the port range 1 to 65535, For TCP, port number 0 is reserved and cannot be used....

We will discuss 2 methods for configuring static IP addresses on Fedora using GUI and terminal. Method 1: Configuring Static IPv4 Address on Fedora with GUI The Fedora Desktop editions provide a graphical user interface for managing the system configuration. You can quickly configure the network interfaces using GUI. Follow the below steps to configure a static IP address on Fedora Desktop systems. Method 2: Configuring Static IPv4 Address on Fedora with CLI The fedora provides nmcli command-line tool for managing NetworkManager....

However, not all companies are willing to make the necessary investments, and definitely, not all threats are viewed as equal. While company will most definitely employ basic security solutions, such as firewalls and anti-viruses, not everybody is makes the necessary investment into privileged account security and user action monitoring, with many opting for standard built-in measure that their software and systems provide. Linux in particular has the reputation for being less vulnerable to malware, but its privileged accounts are in fact very prone to both hacker attacks and misuse by malicious insiders....

Creating an aesthetic bio doesn’t have to be difficult since there are many ways to do so. From making use of custom fonts to text symbols and everything-in-between, a plethora of techniques will be showcased here! Let’s get started! Make Use of Aesthetic Fonts To create an aesthetic bio, you could apply aesthetic fonts to your bio or to particular portions of the bio, for instance. Rather than including the default font for your bio, why not try out different fonts and see which work best?...

Prerequisites Before diving into the article, let’s make sure we have everything ready. You will need aws cli installed and configured on your machine. You already have created a User Pool in your AWS account Find out the App client id at User Pool » App integration » App clients and analytics Steps to Create Cognito User in AWS Let’s say we want to create a user named “Rahul”. Let’s also say that John is from India, and wants to be identified by his “[email protected]” email address....

Once you are connected to a remote host file time via SSH, the SSH clients check for the host key file under the known_hosts file. If the key is found, you will be connected to a remote server after authentication, but if key doesn’t found in the known_hosts file, the command will show a warning message and a prompt to accept or reject the connection request. Once you accepted the by typing “yes”, the key is added in the known_hosts file....

Many people shy away from Linux-based operating systems just because they’re too accustomed to using a graphical user interface. However, contrary to popular belief, Linux distributions also come with a user-friendly GUI. Now, it is possible for users to easily create folders, change wallpapers, and install different applications with the help of the desktop environment that comes with Linux. With that being said, if any issues arise, then some help from the Linux terminal will be needed....

Android 13 was announced to be released on August 13th. It offers a list of comprehensive features that surpass Android 12. Including a bunch of bug fixes and glitches. However, with this new update, new problems have surfaced. Many users have reported their batteries to be draining even faster. There can be multiple reasons why your battery is draining at such a rapid pace. We have come across several solutions, which we will discuss at length in this article....

There’s no doubt that LinkedIn is one of the leading networking platforms for connecting professionals from different industries. Users can use its built-in messaging platform and InMail feature to connect with a potential partner or client. However, the built-in messaging platform isn’t always working and many users report having issues with it. If you are reading this, we can assume that your messages are not sending on LinkedIn. This can be a problem if you are running a campaign for your business and need to connect with professionals and individuals for potential opportunities....

Epic Games is an online game distribution service with over 189 million users worldwide. It has released some popular titles like Fortnite and Rocket League and is a great alternative for Steam. Despite having an amazing track record in the gaming industry, Epic Games isn’t safe from issues, like any app or service. One of the most common problems you can encounter on Epic Games is connectivity issues. Given that Epic Games is an online service, connectivity errors are quite common and should be easy to fix....

The Certbot provides an easy way to generate Let’s Encrypt free certificates for all websites that support HTTP and serve their content over HTTPS. In this article, we will see how to use Certbot to automate the process of generating Let’s Encrypt certificates. Step 1 – Installing Certbot Most Linux systems have the certbot package under default package repositories. is a tool to obtain certificates from Let’s Encrypt and configure them on your web server....

A Snap package is containerised software packages build by Canonical team for the Linux based systems. Nodepad++ is also available as Snap package for the installation. This tutorial will help you to install Nodepad++ on Ubuntu 18.04 LTS Linux system. Prerequisites You must have Desktop installed on your Ubuntu system. Login to your system on desktop using sudo privileged account. Step 1 – Install Nodepad++ on Ubuntu 18.04 You system must have installed and running Snapd service....

Parse dashboard is another application built on node.js by the parse developers. It is an front-end web interface for managing backend parse server. You can add and manage multiple parse server from single dashboard. This tutorial will help you to install and configure parse server and parse dashboard applications on Ubuntu system. Prerequisites Setup a sudo privileged account and apply initial security by following initial server setup Login to instance via SSH as root account...

The latest version of this database system is PostgreSQL 13.2, while versions 12.6, 11.11, 10.16, 9.6.21, & 9.5.25 still getting regular updates. This tutorial describes how to install the latest PostgreSQL on Ubuntu 20.04 LTS Linux system. Also, include the steps to install pgAdmin4. Prerequisites A running Ubuntu 20.04 LTS system with shell access. Log in as a sudo user and press “CTRL+ALT+T” to open a terminal. Then install a few required packages....

A snapcraft package of postman is officially build the official team. The snap packages provides an efficient way of packaging and deployment of application on multiple Linux operating systems. This tutorial will help you to install Postmap on Ubuntu 18.04 Linux system. Prerequisites Login to your Ubuntu 18.04 LTS system with sudo privileged account. Install Postman on Ubuntu 18.04 Postman snap package is available on the snapcraft. You must have snapd service installed on your Ubuntu system....