How to Install Simple TFTP server for Ubuntu 16.04 & 17.04
Installation
sudo apt-get install tftpd-hpa
sudo service tftpd-hpa status
netstat -a | grep tftp
Configuration
Mkdir /tftp
sudo cp /etc/default/tftpd-hpa /etc/default/tftpd-hpa.ORIGINAL
sudo vi /etc/default/tftpd-hpa
TFTP_DIRECTORY=”/tftp”
TFTP_OPTIONS=”–secure –create”
TFTP_ADDRESS=”:69″
Modify Permissions on TFTP Root Directory
sudo chown -R tftp:nogroup /tftp
service tftpd-hpa restart