tftp-hpa-dbg 5.2+20150808-1.4 (arm64 binary) in ubuntu lunar

 Trivial File Transfer Protocol (TFTP) is a file transfer protocol, mainly to
 serve boot images over the network to other machines (PXE).
 .
 tftp-hpa is an enhanced version of the BSD TFTP client and server. It
 possesses a number of bugfixes and enhancements over the original.
 .
 This package contains the debugging symbols for both the client and the server.