Tftp
From Hack Manhattan Wiki
package aftpd from the Debian repositories installed on raphael.
/etc/default/aftpd edited to point location of served files to /mnt/web_server_mount_point/tftp.
/mnt/web_server_mount_point/tftp directory created and two Debian Live ISOs copied there.
User and Group of /mnt/web_server_mount_point/tftp and contents changed to nobody/nogroup.
Tested with atftp client.