Bugs are tracked in Zentyal Bug Tracker.
Getting started with bug tracking in Launchpad.Ubuntu also tracks bugs for packages derived from this project: zentyal in Ubuntu, zentyal-ca in Ubuntu, zentyal-common in Ubuntu, zentyal-core in Ubuntu, zentyal-dhcp in Ubuntu, zentyal-dns in Ubuntu, zentyal-firewall in Ubuntu, zentyal-network in Ubuntu, zentyal-ntp in Ubuntu, zentyal-objects in Ubuntu, zentyal-openvpn in Ubuntu, zentyal-pptp in Ubuntu, zentyal-printers in Ubuntu, zentyal-samba in Ubuntu, zentyal-services in Ubuntu, zentyal-users in Ubuntu.