TFTP service

You should have the file /etc/xinetd.d/tftp with the following contents:
service tftp
{
disable = no
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -s /tftpboot
per_source = 11
csp = 100 2
}
Make sure you are using /tftpboot and disable = no. After configuring this file, you will need to start or restart
xinetd as root:
service xinetd restart