I have a freebsd jail host with currently 4 rsyncd jails samba_server haproxy and syslog-ng, the latter should act as a centralized log server with syslog-ng. I have successfully set the syslogd -ss flag on all servers. And I set syslog-ng on udp 514. The external switch devices etc. correctly write the log to the host and in the jails I correctly set a remote.conf *.* @hostname:514 but no logs are sent back to me from the jails and by the host