Installation of the team workstations

To access DOMjudge, a team workstation needs nothing more than a modern webbrowser, like a recent version of Chrome, Firefox or Edge. We do not support legacy browsers like Internet Explorer. Of course the machine also needs the appropriate development tools for the languages you want to support.

The web browser needs to access the domserver via HTTP(S). It may be convenient to teams if the URL of DOMjudge is set as the default homepage, and if using a self-signed HTTPS certificate, that the browser is made to trust this certificate.

Command line submit client

DOMjudge comes with a command line submit client which makes it really convenient for teams to submit their solutions to DOMjudge.

In order to use the submit client, you need Python, the python requests library and optionally the python magic library installed on the team’s workstation. To install this on Debian-like distributions:

sudo apt install python3 python3-requests python3-magic

Or on RedHat/CentOS/Fedora:

sudo yum install python3 python3-requests python3-magic

You can now copy this client from submit/submit to the workstations.

The submit client needs to know the base URL of the domserver where it should submit to. You have three options to configure this:

  • Set it as an environment variable called SUBMITBASEURL, e.g. in /etc/profile.d/.
  • Modify the submit/submit file and set the variable of baseurl at the top.
  • Let teams pass it using the --url argument.

Note that the environment variable overrides the hardcoded variable at the top of the file and the --url argument overrides both other options.

The submit client will need to know to which contest to submit to. If there is only one active contest, that will be used. If not, you have two options to configure this:

  • Set it as an environment variable called SUBMITCONTEST, e.g. in /etc/profile.d/.
  • Let teams pass it using the --contest argument.

Note that the --contest argument overrides the environment variable.

In order for the client to authenticate to DOMjudge, credentials can be pre-provisioned in the file ~/.netrc in the user’s homedir, with example content:

machine login user0123 password Fba^2bHzz

See the netrc manual page for more details. You can run ./submit --help to inspect its configuration and options.

Rebuilding team documentation

The source of the team manual can be found in doc/manual/team.rst. The team manual can incorporate specific settings of your environment, most notably the URL of the DOMjudge installation. To achieve this, rebuild the team manual after configuration of the system.


A prebuilt team manual is included, but this contains default/example values for site-specific configuration settings such as the team web interface URL and judging settings such as the memory limit. We strongly recommend rebuilding the team manual to include site-specific settings and also to revise it to reflect your contest specific environment and rules.

When DOMjudge is configured and site-specific configuration set, the team manual can be generated with the command make docs. The following should do it on a Debian-like system:

sudo apt install python-sphinx python-sphinx-rtd-theme rst2pdf fontconfig python3-yaml
cd <INSTALL_PATH>/doc/
make docs

On Debian 11 and above, install python3-sphinx python3-sphinx-rtd-theme rst2pdf fontconfig python3-yaml instead.

The resulting manual will then be found in the team/ subdirectory.