[ubuntu][tftp][third tried] ubuntu tftp setup - tftp-hpa tftpd-hpa

1. Install tftp-hpa tftpd-hpa

sudo apt-get install tftp-hpa tftpd-hpa

2. Creat a folder under home of user.

cd ~
mkdir tftp
sudo chmod 777 -R tftp

Method 1:
Modify configuration file.

vim /etc/default/tftpd-hpa

# /etc/default/tftpd-hpa
TFTP_DIRECTORY="/home/freeman/tftp"
TFTP_ADDRESS="0.0.0.0:69"
#TFTP_OPTIONS="--secure"
TFTP_OPTIONS="-l -c -s"

Service start.

sudo service tftpd-hpa restart

Method 2:

Service start.

sudo /usr/sbin/in.tftpd --listen --address 0.0.0.0:69 -l -c -s /home/freeman/tftp/

3. Test enviroment.

Create a file name "download.txt" at tftp folder

A. Download

tftp> get download.txt
tftp> q

B. Upload

tftp> put upload.txt
tftp> q

Question:

Q:  Error code 2: Only absolute filenames allowed
A:  sudo in.tftpd -l /home/happy/tftp(depend on which server folder you place)

Q:  If tftpd can't work
     ps -aux | grep tftpd (can't see the process)
A: In the terminal, please type follow command
/usr/sbin/in.tftpd --listen --user tftp --address 0.0.0.0:69 -l -c -s /home/freeman/tftp

Reference:

• ubuntu下安装tftp的教程（最新版）

Bash script

# Configuration tftpd (Bash script)
bash -c 'mkdir ~/tftp'
bash -c 'echo "TFTP_USERNAME="tftp"" >> ~/tftpd-hpa >>  ~/tftpd-hpa'
bash -c 'echo "TFTP_DIRECTORY="/home/freeman/tftp"" >> ~/tftpd-hpa'
bash -c 'echo "TFTP_ADDRESS="0.0.0.0:69"" >> ~/tftpd-hpa'
bash -c 'echo "TFTP_OPTIONS="-l -c -s"" >> ~/tftpd-hpa'
bash -c 'sudo cp ~/tftpd-hpa /etc/default/'
bash -c 'sudo service tftpd-hpa restart'