530 ossec: output: 'freebsd-last-logins' List of the last logged in users. 530 ossec: output: 'freebsd-open-ports-tcp4-all' Listening IPv4 TCP port opened or closed. 530 ossec: output: 'freebsd-open-ports-tcp4' Listening IPv4 TCP port opened or closed. 530 ossec: output: 'freebsd-open-ports-tcp6-all' Listening IPv6 TCP port opened or closed. 530 ossec: output: 'freebsd-open-ports-tcp6' Listening IPv6 TCP port opened or closed. 530 ossec: output: 'freebsd-open-ports-udp4-all' Listening IPv4 UDP port opened or closed. 530 ossec: output: 'freebsd-open-ports-udp4' Listening IPv4 UDP port opened or closed. 530 ossec: output: 'freebsd-open-ports-udp6-all' Listening IPv6 UDP port opened or closed. 530 ossec: output: 'freebsd-open-ports-udp6' Listening IPv6 UDP port opened or closed.