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In Python, we have some built-in functions like array(), len(), append, and, mod() that can be use to Skip every Nth index of Numpy array. There are many ways for skipping the nth index of a NumPy array. The numpy modulus technique is one option. We can first arrange the array into chunks of evenly spaced intervals using the numpy.arange() method. Then, using the nth index, apply the np.mod() technique to the generated list intervals and compute the modulus of each element. Syntax The following syntax is used in the examples − array() This is an in-built method that ... Read More
Introduction EHCP (Easy Hosting Control Panel) is a powerful and user-friendly web hosting control panel that simplifies the process of managing web servers and hosting websites. It provides a comprehensive set of features and tools to streamline the hosting experience. This article will guide you through the step-by-step process of installing EHCP on both Red Hat-based distributions (RHEL, CentOS, Fedora) and Debian-based distributions (Ubuntu, Debian, Linux Mint). Additionally, we will include examples and their output to illustrate the installation process. Prerequisites Before we begin, make sure you have the following prerequisites in place − A server or virtual machine ... Read More
In this problem, we will find the binary string of the given length having the same number of ‘01’ and ‘10’ subsequences. The naïve approach to solving the problem is to generate all binary strings of the given length and check whether it contains the same number of ‘10’ and ‘01’ subsequences using the dynamic programming technique. Another efficient approach is to prepare a binary string based on whether the given length is odd or even. Problem statement − We have given a positive integer ‘len’ which is greater than 2. The task is to find the binary string ... Read More
The multiple subplots are defined by a collection of different plotting graphs. The Matplotlib is name of the module that provides animated and interactive visualization in Python. In Python, we have some built-in function named suptitle() that can be used to Set a Single Main Title for All the Subplots in Matplotlib. Syntax The following syntax is used in the examples − array() The array method of Python is defined by returning the number of elements with its specific value. suptitle() This is the built-in method in Python that can be used to set the main title of ... Read More
Introduction Docker has revolutionized the world of software development and deployment by providing a lightweight and efficient containerization platform. With Docker, developers can package their applications and dependencies into containers, making it easier to deploy and run them consistently across different environments. In this article, we will guide you through the process of installing Docker on CentOS and RHEL 8/7 and provide examples of basic container manipulation. Installing Docker on CentOS/RHEL 8 Preparing the System Before installing Docker, ensure that your system is up to date by running the following commands − $ sudo yum update $ sudo yum install ... Read More
Introduction DNS (Domain Name System) plays a crucial role in translating domain names into IP addresses, allowing users to access websites using human-readable URLs. To enhance DNS performance and reduce network latency, implementing a caching-only DNS server can significantly improve the speed and efficiency of DNS lookups. In this article, we will guide you through the process of installing and configuring a caching-only DNS server in RHEL/CentOS 7. Prerequisites Before proceeding, ensure that you have the following − A server running RHEL/CentOS 7. Root or sudo access to the server. Basic knowledge of the Linux command line. Update ... Read More
In this problem, we will find all unique characters of the string with their first index, which is present in the string, after incrementing all characters of the given string by K. For a problem solution, we can take each unique character of the given string. Next, we can update each character individually and check whether the updated character is present in the string and not updated to another character to get the answer. Problem statement − We have given a string alpha and positive integer K. We need to increment each character’s ASCII value of the given string by ... Read More
Introduction Adobe Flash Player has been a widely used multimedia platform for many years, enabling users to view interactive content, play online games, and stream videos. However, with the rise of HTML5 and the continuous evolution of web standards, Flash Player has been gradually phased out and is no longer officially supported by Adobe. Nevertheless, some legacy systems and applications may still require Flash Player 11.2 to function properly. In this article, we will guide you through the process of installing Adobe Flash Player 11.2 on CentOS/RHEL 7/6 and Fedora 25-20. Prerequisites Before proceeding with the installation, ensure that you ... Read More
Many applications benefit from sorting pandas DataFrame by column names or row indexes. For example, to show how sales continue over time, we may sort a DataFrame of sales data by date. In Python, we have some built-in functions- DataFrame(), sort_index(), and, sort_values() that can be used to Sort a Pandas DataFrame based on column names or row index. Syntax The following syntax is used in the examples − DataFrame(var_name, colums= ['col1', 'col2', and so on], index= ['1', '2', and so on]) A DataFrame is a library of pandas modules and defines the 2D structure of different rows and ... Read More
Introduction Email communication remains an integral part of our personal and professional lives. Setting up a reliable and secure mail server is crucial for efficient communication within organizations or for personal use. RedMail, a fully-featured mail server solution, offers a comprehensive suite of tools to create virtual domains, access webmail, and enhance email security with SpamAssassin and ClamAV. In this article, we will guide you through the process of installing RedMail on a Linux system, showcasing examples and their outputs to help you get started. Prerequisites Before we dive into the installation process, make sure you have a Linux server ... Read More