Tag: Unit File

What is Systemctl? An In-Depth Overview

Posted on July 6, 2023 by Devon Kauffman | Updated: December 26, 2023

Category: Tutorials | Tags: .service, CLI, Commands, Dependencies, Disable, Enable, Init.d, List, List Units, Masked, Masked Units, Properties, Runlevels, Server, Server Administration, Server Management, Service, Services, Static, Status, System State, Systemctl, Systemd, Target, Unit, Unit File

Reading Time: 12 minutes

What is Systemctl?
Managing Services
System State Overview
What is a Unit File?
Working with Unit Files
Using Targets (Runlevels)
Stopping or Rebooting the Server
Conclusion
FAQ

What is Systemctl?

Systemctl is a command-line tool that allows for the management and monitoring of the systemd system and service manager. It consists of a range of system management utilities, libraries, and daemons that have replaced the previous System V (SysV) init daemon. With its various commands, systemctl proves to be a helpful tool in managing a server's services. It provides detailed information about individual systemd services as well as those that have system-wide usage.

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How to Install Tomcat 9 on CentOS 8

Posted on February 5, 2020 by Ellen Sletton

Category: Tutorials | Tags: 8080, 8443, Apache, Apache Tomcat, Catalina, CentOS, CentOS 8, Curl, Firewalld, Java, JDK, OpenJDK, Ports, Servlet, Systemd, tomcat, tomcat 9, Unit File

Reading Time: 8 minutes

What is Tomcat?

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.