Kea DHCP : Use Kea Control Agent

	To start Kea control agent, it allows you to manage Kea DHCP via API.
[1]	Install and Start Kea control agent.

root@dlp:~#  apt -y install kea-ctrl-agent curl jq root@dlp:~#  vi /etc/kea/kea-dhcp4.conf "Dhcp4": { # add follows "control-socket": { "socket-type": "unix", "socket-name": "/run/kea/kea4-ctrl-socket" }, ..... ..... root@dlp:~#  vi /etc/kea/kea-ctrl-agent.conf # line 20 : listening IP address "http-host": "127.0.0.1", # line 27 : listening port "http-port": 8000, # line 38 : check the settings "authentication": { "type": "basic", "realm": "Kea Control Agent", "directory": "/etc/kea", "clients": [ { "user": "kea-api", "password-file": "kea-api-password" } ] }, root@dlp:~#  echo -n password > /etc/kea/kea-api-password root@dlp:~#  chown root:_kea /etc/kea/kea-api-password root@dlp:~#  chmod 640 /etc/kea/kea-api-password root@dlp:~#  systemctl restart kea-dhcp4-server kea-ctrl-agent

[2]	This is an example of using command via API.

root@dlp:~#  curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "list-commands", "service": ["dhcp4"]}' localhost:8000 | jq Enter host password for user 'kea-api': # enter the admin password you set above [ { "arguments": [ "build-report", "config-backend-pull", "config-get", "config-hash-get", "config-reload", "config-set", "config-test", "config-write", "dhcp-disable", "dhcp-enable", "leases-reclaim", "list-commands", "server-tag-get", "shutdown", "statistic-get", "statistic-get-all", "statistic-remove", "statistic-remove-all", "statistic-reset", "statistic-reset-all", "statistic-sample-age-set", "statistic-sample-age-set-all", "statistic-sample-count-set", "statistic-sample-count-set-all", "status-get", "version-get" ], "result": 0 } ] root@dlp:~#  curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "config-get", "service": ["dhcp4"]}' localhost:8000 | jq Enter host password for user 'kea-api': [ { "arguments": { "Dhcp4": { "allocator": "iterative", "authoritative": false, "boot-file-name": "", "calculate-tee-times": false, "control-socket": { "socket-name": "/run/kea/kea4-ctrl-socket", "socket-type": "unix" }, ..... ..... root@dlp:~#  curl -u kea-api -s -H "Content-Type: application/json" -d '{"command": "statistic-get-all", "service": ["dhcp4"]}' localhost:8000 | jq Enter host password for user 'kea-api': [ { "arguments": { "cumulative-assigned-addresses": [ [ 0, "2025-08-12 17:08:27.006595" ] ], "declined-addresses": [ [ 0, "2025-08-12 17:08:27.006593" ] ], "pkt4-ack-received": [ [ 0, "2025-08-12 17:08:26.993754" ] ], ..... .....