Installing GlassFish on CentOS 8

GlassFish is an open-source application server used for Java EE (Enterprise Edition) applications. It provides a runtime environment for deploying, managing, and scaling Java applications.

Here are the steps to install GlassFish on CentOS 8:

1. First, update your system packages by running the following command in the terminal:
2. sudo dnf update


3. Next, install Java Development Kit (JDK) by using the following command:
4. sudo dnf install java-11-openjdk-devel


5. Once JDK is installed, download the GlassFish server from the official website. You can use the following command to download the latest version:
6. wget https://download.eclipse.org/glassfish/glassfish-6.2.0.zip
   Make sure to replace the URL with the appropriate version if needed.
7. After downloading, extract the zip file using the following command:
8. unzip glassfish-6.2.0.zip


9. Now, move the extracted folder to a convenient location, such as /opt:
10. sudo mv glassfish6 /opt/
11. Set the JAVA_HOME environment variable by opening the bash profile file in a text editor:
12. sudo nano ~/.bash_profile
    Add the following line at the end of the file, replacing the path with the correct location of your JDK installation:
    export JAVA_HOME=/usr/lib/jvm/java-11-openjdk
    Save the file and exit the text editor.
13. To make the changes take effect, reload the bash profile:
14. source ~/.bash_profile
15. Finally, start the GlassFish server using the following command:
16. /opt/glassfish6/bin/startDomain --verbose
    You should see the server console output indicating that the server has started successfully.
17. To access the GlassFish administration console, open a web browser and enter the following URL:
18. http://localhost:4848

Now you have successfully installed and started GlassFish on CentOS 8. You can deploy your Java applications and manage them using the GlassFish administration console.