doesn't seem to work well with (maybe without) xinetd-2.1.8.9pre9-6. When you try to connect you have access violation: code error 2 (even with the maximum right (777) on /tftpboot and the empty file you want to fill. Solution : use an old tftp ( mine is tftp-server-0.16-9k.i586.rpm) without changing anything to your /etc/xinetd.d/tftp file ( simply don't forget to rename in from tftp.rpmsave to tfto ).
You have to use syntax like: get /tftpboot/test.file or put /tftpboot/test.file or use -s for chroot (see man page) Previous version was much more liberal about this.