The concept of database replication ensures that data is copied across multiple servers from a Master server. This provides data redundancy and ensures that data is not lost in the event that the Master node fails. In this article, we take a look at MariaDB Master-Slave replication on CentOS 7. We will demonstrate how data […]
SQL Constraints
In a real-world scenario, there are cases when we would like to restrict the type of data that is getting stored in the DB table. In order to achieve the restriction on the database, SQL provides a set of constraints. Introduction SQL constraints are a set of rules that are used for restricting the data […]
How to install Grafana on Ubuntu 18.04 and Debian 8
Grafana is a free and open-source monitoring system that is used for monitoring and visualizing metrics from host machines. It provides intuitive and appealing dashboards, and analytics coupled with the ability to customize your own dashboards for monitoring your infrastructure. In this guide, we will show you how you can install Grafana on Ubuntu 18.04 […]
How to Monitor Nginx with Amplify
Amplify is a powerful, lightweight, and intuitive SaaS-based monitoring platform used for monitoring Nginx and Nginx Plus. It monitors and displays Nginx metrics such as Current connections Current requests HTTP errors HTTP version Nginx memory usage Nginx CPU usage Nginx traffic In addition, it also monitors the Operating system’s metrics such as CPU usage, Load […]
How to install PhpMyAdmin on Ubuntu 18.04 LTS
If you are not adept at managing your MySQL database on a terminal, phpMyAdmin provides a graphical interface that simplifies your database administration. phpMyAdmin is a free and open-source front-end PHP-based control panel that allows you to manage your MySQL databases & users, run complex queries, import and export database backups, review SQL activity, and […]
Linux sed Command Usage with Examples
Sed, short for Stream EDitor, is a command that is used to perform text transformations and manipulations on a file. Some of these transformations include searching and replacing text. With Linux sed command, you can manipulate and edit text files without even opening them. In this tutorial, you will learn how to manipulate text files […]
How to install webmin on Ubuntu 18.04
Are you averse to running commands on a terminal and instead prefer managing your Linux system from a Graphical interface? Webmin is a free and open source web-based control panel that gives users the ability to check the system’s performance. We can manage users and groups, manage quotas, update the system, install and remove software […]
sort command in Linux with examples
Linux sort command is used for sorting file content in a particular order. It supports sorting of files alphabetically (ascending or descending), numerically, in reverse order, etc. We can also remove duplicate lines from the file. In this article, we’ll see different example usages of the Linux sort command. When using the sort command Lines […]
Python Pandas Module Tutorial
Python Pandas Module Pandas is an open source library in Python. It provides ready to use high-performance data structures and data analysis tools. Pandas module runs on top of NumPy and it is popularly used for data science and data analytics. NumPy is a low-level data structure that supports multi-dimensional arrays and a wide range […]
Android JNI Application With NDK
In this tutorial, we’ll be discussing JNI and develop a basic Android Application using NDK tools. A background in c/c++ would be useful, though not a prerequisite. Android NDK is a companion tool of Android SDK that allows us to use native code C/C++ in our development. To use NDK tools, ensure that the following […]