Configuring TFTP server with the files required to PXE boot

Trivial File Transfer Protocol (TFTP) enables a client to retrieve a file and transmit to a remote host. This workflow concept is leveraged in the auto deploy process. Neither the protocol nor the workflow is proprietary to VMware.  In this recipe, we shall use an open source utility to act as the TFTP server, there are other variants that can be used for similar purposes.