# Command./usr/ is the issue.
$ keactrl stop
# Output (error).
ERROR/keactrl: keactrl configuration file doesn't exist in /usr//etc/kea/keactrl.conf.
# Command
$ keactrl stop -c /etc/kea/keactrl.conf
# Output
INFO/keactrl: kea-dhcp4 isn't running.
INFO/keactrl: kea-dhcp6 isn't running.
INFO/keactrl: kea-dhcp-ddns isn't running.
INFO/keactrl: kea-ctrl-agent isn't running.