The new launchd service consults the settings located in /System » Library » LaunchDaemons and /Library » LaunchDaemons directories. In Tiger, most services that were previously configured using xinetd have been migrated to launchd. On OS X Server, tftpd is utilized for NetBoot however, on the standard client, the framework still exists. I have found it useful to use this feature with Netopia ENT routers, as it enables me to make backups of client configurations, and update the firmware directly on my service laptop. Many network devices are able to upload and download firmware and configurations via the TFTP protocol.