How to Install DOMJudge on NetBSD

DOMJudge is an open-source online judge system. It is used to organize programming contests and competitions. In this tutorial, we’re going to show you how to install DOMJudge on NetBSD.

Prerequisites

Before we start, make sure you have the following:

• A NetBSD user account with root privileges
• A running instance of NetBSD

Step 1: Install dependencies

First, we need to install some dependencies for DOMJudge to run on NetBSD. Run the following command to install them.

pkgin install gmake gcc g++ postgresql10-server postgresql10-client php56-pgsql php56-zip php56-json php56-mbstring

Step 2: Install DOMJudge

Now we can download and install DOMJudge. Run the following commands to download and extract the DOMJudge package.

cd /usr/local
fetch https://www.domjudge.org/releases/domjudge-7.3.3.tar.gz
tar -xzvf domjudge-7.3.3.tar.gz

Next, we need to configure and compile DOMJudge. Run the following commands to do this.

cd domjudge-7.3.3
./configure --prefix=/usr/local/domjudge --with-baseurl=https://localhost/domjudge
make install

Step 3: Configure PostgreSQL

DOMJudge requires PostgreSQL to store contest data. We need to create a new PostgreSQL database and user for DOMJudge. Run the following commands to do this.

su - postgres
createuser -P domjudge
createdb -O domjudge domjudge
exit

Step 4: Configure DOMJudge

Now we need to configure DOMJudge to use the PostgreSQL database we just created. Run the following command to open the DOMJudge configuration file in a text editor.

vi /usr/local/domjudge/etc/domjudge-domserver-installer.sh

Find the following line:

DJ_DB_USER="dj"

Replace it with:

DJ_DB_USER="domjudge"

Next, find the following line:

DJ_DB_PASSWORD=""

Replace it with:

DJ_DB_PASSWORD="your_postgres_password"

Save and close the file.

Step 5: Start DOMJudge

Finally, we can start the DOMJudge server. Run the following command to start the DOMJudge daemon.

/usr/local/domjudge/bin/domjudge-ctl start

You should now be able to access DOMJudge at https://your_netbsd_server/domjudge.

Congratulations! You have successfully installed DOMJudge on NetBSD.

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