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TFTP Server
Ubuntu 12.04 x86 in vmware player
The default TFTP suite is tftp-hpa. To install the following step is needed:
user@ubuntu:~$ sudo apt-get install xinetd tftpd tftp
The TFTP default directory is /var/lib/tftpboot. For convinience the following changes can be applied to the system:
- Creation of a new directory for the server
- setting the ownership for the tftp user
- add user to the tftp group to have rights to the tftpd dirctory
user@ubuntu:~$ sudo mkdir -p /srv/tftpd user@ubuntu:~$ sudo chown tftp:tftp /srv/tftpd user@ubuntu:~$ sudo chmod 775 /srv/tftpd user@ubuntu:~$ sudo usermod -a -G tftp user
Finally the server configuration for the TFTP server has to be changed:
user@ubuntu:~$ sudo nano /etc/default/tftpd-hpa
Change the following line to point to the new created directory:
TFTP_DIRECTORY="/srv/tftpd"
To restart the TFTP server type:
user@ubuntu:~$ sudo service tftpd-hpa restart
To test the server copy some file to the server and get it back with
user@ubuntu:~$ tftp 127.0.0.1 -c get <filename>
Ubuntu 10.04 x86 in vmware player
Installation
user@ubuntu:~$ sudo apt-get install xinetd tftpd tftp
Configuration
To cofigure TFTP the file /etc/xinetd.d/tftp must be created and filled with the following content. This configuration uses the directory /tftpboot.
service tftp
{
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -s /tftpboot
per_source = 11
cps = 100 2
}
<note>
The directory requires at least the access authorisation “dr-xr-xr-x”.
</note>
<note> After the configuration was changed the server should be restarted:
user@ubuntu:~$ sudo service xinetd restart
</note>
Firewall & port forwarding
TFTP uses port 69 UDP. This port must be opened. How to configure port forwarding on a Windows-XP host system is described here: Port Forwarding.