I'm 23 years old Linux Tech who always takes NO as Next Opportunity. Every day I'm trying to learn something new and share my knowledge with others. My free time I spend with my dog Emil or doing some UI/UX design or simply making an inspiring photo for my blog :)
Sharing knowledge helps me generate new ideas and stay motivated.
Java is considered one of the most popular programming languages. Java is a typed object-oriented programming language developed by Sun Microsystems (and subsequently acquired by Oracle). Development is mainly performed by a community organized through the Java Community Process. The language and the main technologies that implements it are distributed under the GPL but the trademark rights are owned by Oracle Corporation. Code written in Java (using the JVM – Java Virtual Machine) is transformed into bytecode and due to this, programs can run on any system where the JVM is installed. Therefore, Java is often called a cross-platform language. Most often, Java is used to develop backend programs and android applications.
PyCharm is an IDE (or Integrated Development Environment) for the Python programming language. It is a cross-platform development environment that is compatible with Windows, macOS, and Linux. It provides a tool that integrates code analysis, graphical debugging, unit testing, and also contains an integrated terminal that supports development on remote hosts and virtual machines.
Samba is an open-source software package that is released under a GPL (General Public License). It allows us to access a shared network drive and printers across various operating systems using the SMB/CIFS protocol. Samba has both client and server components. Samba uses the SMB protocol, which is necessary when accessing assets on a file server from a Microsoft computer. Samba can also work as a domain controller that is compatible with Microsoft Active Directory.
SaltStack is an open-source infrastructure management platform built on a dynamic communications bus. The main structure of SaltStack contains two main components for work: one Salt Master and several Salt Minions. Salt Master is the main control system used to send commands to Salt Minion and their configuration. Salt Minions (they are also called Nodes) are subsystems that work on managed servers and receive commands from the master, as well as their configuration. At least two servers are required for interaction settings. One for the Master and one for the node. All nodes are configured in the same way.
Before we begin, let’s describe what Docker is. Docker is a set of virtualization tools that allows us to create, test, and deploy containerized applications quickly and easily on a dedicated server. It has become very popular and used almost everywhere in our daily lives. Thanks to containerization, we can quickly launch applications on different private cloud host platforms utilizing small bundles which contain all the needed packages, libraries and configuration file to run an application. These docker packages communicate via established network channels.
Today we will demonstrate how to install Envoy Proxy on Ubuntu.
Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures. Built on the learnings of solutions such as NGINX, HAProxy, hardware load balancers, and cloud load balancers, Envoy runs alongside every application and abstracts the network by providing common features in a platform-agnostic manner.
Wraith is a visual regression testing tool which uses screenshot comparisons to assess visual differences in a website over time. It is currently hosted on GitHub and available under an Apache 2.0 open-source license.
In this article, we will be demonstrating how to install Apache Tomcat on CentOS 8. Before we begin, let’s define exactly what Apache Tomcat is. Apache defines Tomcat as: “An open-source, servlet container, JavaServer Pages, Java Expression Language, and WebSocket technology that also acts as a web server. It affords a “pure Java” based HTTP server environment in which Java can be executed.” Tomcat works with the Java programming language and is associated with web applications written in Java.