tftpd-hpa
---------

tftpd-hpa uses systemd socket activation. Specific listening addresses can be
configured by overriding ListenDatagram= in tftpd-hpa.socket. To do so, use
`systemctl edit tftpd-hpa.socket`.

The default configuration prevents creating new files. To allow that add
`--create` to TFTPD_OPTS in tftpd-hpa.service. To do so, use
`systemctl edit tftpd-hpa.service`.

The old /etc/default/tftpd-hpa configuration is not supported since tftpd-hpa
6.0.

With Compaq Professional Workstation XP1000 machines acting as clients you might
need to use "-r blksize" option to inhibit OACK being sent out as they reply to
regular TFTP port instead of the port where OACK originated. This is SRM
firmware bug on those machines. Many thanks to Steffen Grunewald for tracking
this down.

 -- Chris Hofstaedtler <zeha@debian.org>  Sat, 29 Aug 2026 12:47:30 +0200