A high performance, small footprint Captive Portal
OpenNDS is a high performance, small footprint Captive Portal,
offering by default a simple splash page restricted Internet connection
yet incorporates an API that allows the creation of sophisticated
authentication applications.
After installing the snap you can adjust the configuration file in
/var/snap/opennds/common/opennds/opennds.conf following
the documentation at https://openndsdocs.readthedocs.io/en/stable/
Then you need to allow the snap access to the firewall, network configuration,
mount information and some system resources with the commands
sudo snap connect opennds:firewall-control
sudo snap connect opennds:hardware-observe
sudo snap connect opennds:mount-observe
sudo snap connect opennds:network-observe
sudo snap connect opennds:system-observe
After connecting these snap interfaces, the opennds daemon will start
automatically. To interact with the daemon the snap package ships
the opennds.ndsctl
command