For Ubuntu

1. Install the TFTP Server

sudo apt update
sudo apt install tftpd-hpa

2. Configure the TFTP Server

sudo nano /etc/default/tftpd-hpa

TFTP_USERNAME="tftp"
TFTP_DIRECTORY="/var/tftpboot"
TFTP_ADDRESS=":69"
TFTP_OPTIONS="--secure"

Save and close the file.

3. Create and Set Permissions for the TFTP Root Directory

sudo mkdir /var/tftpboot
sudo chown tftp:tftp /var/tftpboot
sudo chmod -R 775 /var/tftpboot

4. Restart the TFTP Service

sudo systemctl restart tftpd-hpa

5. Check the Status of the TFTP Service

sudo systemctl status tftpd-hpa

For any distro using the docker

1. Create and Set Permissions for the TFTP Root Directory if needed

sudo mkdir /var/tftpboot
sudo chmod -R 775 /var/tftpboot

2. Run the tftp docker container:

docker run -p 0.0.0.0:69:69/udp -v /var/tftpboot:/var/tftpboot -i -t pghalliday/tftp

For Windows

1. Download and install tftpd64

2. Select the network and directory with the files you need to transfer