DHCP + TFTP + PXE, log erorr

Hello. This is my log:

192.168.0.8 - vm virtualbox - boot is ok.
192.168.0.16 - physical machine - boot failed:
PXE-T01: file not found
PXE-E3B: TFTP Erorr - file not found
Files:
/pxe
/pxe/pxelinux.cfg
/pxe/pxelinux.cfg/default
/pxe/memdisk
/pxe/menu.c32
/pxe/pxelinux.0

How to set up a TFTP Server?