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Step 1 – Prerequsities First, of all, you need to install the required packages needed by PhantomJS to work correctly. RedHat 8 & Fedora Users CentOS 7/6 Users: Step 2 – Install FantomJS Now download the latest FantomJS from its official website. After downloading the archive file, just extract this to the desired system location. You don’t need to install this. Now simply create a soft link phantomjs binary file to systems bin dirctory as below: pre> sudo ln -sf /usr/local/share/phantomjs-2....

Prerequisites Launched a CentOS 8 instance on DigitalOcean. Setup a sudo privileged account and apply initial security by following initial server setup Login to instance via SSH as root account Step 1 – Install LAMP Server Roundcube webmail application is written in PHP programming language. It uses MySQL as the database server. So we required to set up a LAMP server on your server. All the packages are available in default repositories, to install them type: Once the installation finished....

This tutorial will help you to how to install Apache Tomcat 10 on Debian 10 Buster Linux system. Prerequisites A running Debian 10 system with sudo privileged account shell access. You can get cheaper instances from DigitalOcean hosting. Step 1 – Install Java Tomcat 10 required JRE 8 or higher version installed on your system. If your system doesn’t have JRE installed, Use the following commands to install OpenJDK to fulfil the requirements....

Apt don’t provide any command to list available package under the specific repository. But you can find the list from a cache file, which contains list of available package to that repository with other details. This tutorial will help you to find all the available packages in a repository on Ubuntu and other Debian based systems. Find Packages Details in Repository Apt keeps all repository cache files under /var/lib/apt/lists directory....

We can also run any custom script as systemd service. It helps the script to start on system boot. This can be helpful for you to run any script which required to run at boot time only or to run always. In our previous tutorial we have provides you instructions to run a Python script using Systemd. This tutorial covers running a shell script as a Systemd service. Step 1 – Create a Shell Script First of all, create a sample shell script, which needs to run at system startup....

Security first should be the thumb rule for any organization to secure your hard-working code from hackers. It becomes more important while traveling application data over public networks. For this situation, we need to implement end-to-end encryption using TLS. This tutorial helps you to issue a new let’s encrypt SSL certificate and configure it with the Tomcat web server. Prerequisites This tutorial doesn’t cover the Tomcat installation. We are assuming that you already have a Tomcat server running on your system....

Ubuntu 20.04 systems uses netplan from the previous LTS system. The desktop systems provide an attractive graphical user interface to work with it. Using the GUI, you can easily change or set a static IP address on your Ubuntu system. Set A Static IP on Ubuntu 20.04 You must have a root or sudo privileged account in the Ubuntu system. Login to your Ubuntu 20.04 Desktop system. After that open settings on your machine as shown in the below screenshot....

We can configure reverse proxy in IIS using URL Rewrite module. This is similar to the mod_rewrite module in Apache. Before starting work make sure you have installed and enabled URL Rewrite module in IIS server. What is URL Rewrite Module? URL Rewrite Module is officially provided by IIS development tool to extend the functionality of IIS web server. It provides additional functionality to rewrite application URL. This helps to make clean and SEO friendly URLs....

So to solve this problem, SSH allows you to set and use the ssh config file for different use-cases. SSH uses a system and custom or user-specific configuration file. You can customize and configure client-side connection options and can store information of every remote server you connect with. In today’s article, we will explain how to use the ssh config file and explain some of the common configuration options. With an SSH config file, you can define and store settings for specific remote machines....

Samba sharing allows multiple systems to share single resources over a network, like sharing a printer reduces hardware cost. Also, share the directory server using samba and mount it on remote systems easily. This tutorial will help you to mount remote samba share to Ubuntu, Debian, or Linux Mint systems. Steps to Mount Samba Share on Ubuntu and Debian This tutorial assumes that you have already shared a directory on the remote system....

In this article, we’ll walk you through how to configure Postfix to send emails from external SMTP servers. What is Postfix Relayhost? Postfix relayhost is a configuration directive that tells Postfix which external SMTP server to use when sending outbound emails. This configuration is necessary when you’re sending emails from your Linux server to external domains. Without a relayhost configured, Postfix won’t be able to send emails to external domains....

On Linux: from pathlib import Path Path("/dir1/dir2/dir3").mkdir(parents=True, exist_ok=True)12from pathlib import PathPath("/dir1/dir2/dir3").mkdir(parents=True, exist_ok=True) On Windows: from pathlib import Path Path(“C:\dir1\dir2\dir3”).mkdir(parents=True, exist_ok=True)12from pathlib import PathPath(“C:\dir1\dir2\dir3”).mkdir(parents=True, exist_ok=True) Here: parents=True: instruct to create parent directories if not available. exist_ok=True: Do not throw an error if a directory already exists. Execute the above Python script and checked for the newly created directory tree.

In the previous article, you have learned to remote last character of a string in JavaScript. If you are looking for remove last character from string, visit here. This tutorial describe you to how to remove first character of a string in JavaScript. You can choose any one of the following methods. Method 1 – Using substring() function Use the substring() function to remove the last character from a string in JavaScript....

If you have forgotten your SugarCRM admin password or due to any reason, you are not able to login to SugarCRM with admin user. You can simply check the active admin user using SQL query and reset the password with simple SQL query. Reset SugarCRM Admin Password via SQL The first query will fetch the active admin accounts from your SugarCRM database. SugarCRM uses md5 encrypted passwords. The query will change the password for the specified username....

Here is the five main functions used for generating random numbers in a Python script. 1. Python random() function: This function returns a random floating point value between 0 to 1. You can also specify the range to override the defaults. 2. Python randint() function: The randint() function takes in a range and produces an integer number between the defined range. 3. Python uniform() function: Just as the randint() function generates an integer within a given range, uniform() does the same for floating point numbers....

The term “localhost” is derived from the combination of the words “local” and “host”. The word “local” refers to the device itself, while the word “host” refers to the device hosting a service or application. Therefore, “localhost” literally means “the local host.” In most cases, localhost is used to access the network services that are running on the same device as the one being used to access them. For example, if you are running a web server on your local computer, you can use the URL “http://localhost” to access the web server from the same computer....

Technology has changed the way of living. Now we can say that our lives are totally dependent on technology because whenever it gets any change, its impact comes to our life. The biggest and greatest invention of technology is the internet that is now considering the most important root of everything. 5 Biggest Software Development Trends in 2017 Technology has brought drastic changes in our lives such as; connected people from all over the world, improved communication in a very effective and efficient way....

First of all, we assume you already have Ruby installed on your system. If you do not have Ruby installed on your system, Use one of below URL to install it as per your application requirements. How to Install Latest Ruby on Debian, Ubuntu, Linuxmint Step 1 – Prerequisites First of all, enable the HTTPS support for Apt repositories and install the PGP keys for passenger packages on your system....

The CentOS project has announced a new update to the distribution, releasing CentOS 7.9 which is derived from Red Hat Enterprise Linux 7.9. You can also use this tutorial to upgrade your CentOS 7 to the latest version. CentOS 7 Download Links Use the following links to download the latest CentOS 7.9 ISO images from CentOS official download page or its mirror pages. A torrent link is also available for all ISO images to download images using the torrent software....

Python 3 provides a built-in function called input() that allows you to take user input. Where Python 2.x uses the raw_input() function is used to accept user input. Python 2.7 also has a function called input(). However, this function takes only one argument: the prompt string. Lets see a few examples: Python 3.x – Using input() function name = input(“Enter your name: “) print(“Hello”, name)123name = input(“Enter your name: “) print(“Hello”, name)Open a Python shell and run the above statements....