How to Install DOMJudge on Elementary OS Latest

DOMjudge is an online judge system used in programming competitions. It is available for different operating systems, including Linux. This tutorial will guide you on how to install DOMJudge on Elementary OS Latest.

Prerequisites

Before starting, ensure that you have the following:

• Basic knowledge of Linux commands
• A sudo user account
• An updated system

Step 1: Install Dependencies

1. Open the terminal on your Elementary OS system.
2. Update the system package list using the command:

sudo apt update

3. Install the required dependencies for DOMJudge using the command:

sudo apt-get install build-essential openjdk-8-jdk php-cli php-mbstring php-xml mariadb-server-10.3 apache2 libapache2-mod-php7.2 nodejs-legacy npm

Step 2: Download and Install DOMJudge

1. Change to the server's web directory:

cd /var/www

2. Download the latest DOMJudge version from the official website using the command:

sudo wget https://www.domjudge.org/releases/domjudge-7.1.0.tar.gz

3. Extract the downloaded archive using the command:

sudo tar -xvzf domjudge-7.1.0.tar.gz

4. Rename the extracted folder using the command:

sudo mv domjudge-7.1.0 domjudge

5. Change to the domjudge directory using the command:

cd domjudge

6. Run the configure command to configure the installation using the command:

Note: Replace [DBHOST] with your database host, [DBNAME] with your database name, [DBUSER] with your database user and [DBPASS] with your database password.

sudo ./configure --with-baseurl=judge.example.com --with-domjudge-user=www-data --with log-files-owner=www-data --with-log-dir=/var/log/domjudge --with-docroot=/var/www/domjudge/public --with-libdir=/usr/lib/x86_64-linux-gnu --with-db-host=[DBHOST] --with-db-name=[DBNAME] --with-db-user=[DBUSER] --with-db-pass=[DBPASS]

7. Compile and install using the command:

sudo make install

Step 3: Install the Web Interface

1. Change to the webapp folder using the command:

cd webapp

2. Install the required npm packages using the command:

sudo npm install

3. Compile and install the frontend using the command:

sudo npm run build

4. Run the database migrations using the command:

sudo bin/console doctrine:migrations:migrate

5. Create the initial user account using the command:

sudo bin/console user:create

6. Generate a password for the initial user using the command:

sudo bin/console passwd [username]

Note: Replace [username] with the username of the initial user.

Step 4: Setup the Apache Server

1. Copy the Apache configuration file using the command:

sudo cp /var/www/domjudge/webapp/config/domjudge.apache.conf /etc/apache2/sites-available/domjudge.conf

2. Enable the Apache configuration using the command:

sudo a2ensite domjudge.conf

3. Reload the Apache service using the command:

sudo service apache2 reload

Step 5: Setup the Database

1. Login to the MySQL shell using the command:

sudo mysql -u root -p

2. Create the database using the command:

CREATE DATABASE [DBNAME];

Note: Replace [DBNAME] with your preferred database name.

3. Create a user for the database using the command:

CREATE USER '[DBUSER]'@'localhost' IDENTIFIED BY '[DBPASS]';

Note: Replace [DBUSER] and [DBPASS] with your preferred database username and password.

4. Grant privileges to the user using the command:

GRANT ALL PRIVILEGES ON [DBNAME].* TO '[DBUSER]'@'localhost';

Note: Replace [DBNAME] and [DBUSER] with your preferred database name and username.

5. Flush the privileges using the command:

FLUSH PRIVILEGES;

6. Exit the MySQL shell using the command:

exit

Step 6: Finalize the Installation

1. Open a web browser on your computer.
2. Navigate to your server's hostname or IP address using the address:

http://your_server_ip_or_hostname

3. Login using the initial user account and password you created earlier.

Congratulations! You have successfully installed DOMJudge on Elementary OS Latest. You can now start creating contests and inviting participants.

If you want to self-host in an easy, hands free way, need an external IP address, or simply want your data in your own hands, give IPv6.rs a try!

Alternatively, for the best virtual desktop, try Shells!