I have looked at the following questions without success:
I've tried using tftp-hpa, atftpd and tftp. I've returned to tftp as using the others made no difference.
So far I have:
Installed tftp
sudo apt-get install xinetd tftpd tftp
Set up /etc/xinetd.d/tftp
service tftp
{
protocol = udp
port = 69
socket_type = dgram
wait = yes
user = nobody
server = /usr/sbin/in.tftpd
server_args = /tftpboot
disable = no
}
Created the /tftpboot folder and ran the following for it:
sudo chmod -R 777 /tftpboot
sudo chown -R nobody /tftpboot
I have allowed port 69 through iptables:
sudo iptables -A INPUT -p tcp --dport 69 -j ACCEPT
sudo iptables -A INPUT -p udp --dport 69 -j ACCEPT
sudo iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere tcp dpt:tftp
ACCEPT udp -- anywhere anywhere udp dpt:tftp
and restarted the service:
sudo /etc/init.d/xinetd restart
I can connect fine using localhost (same result if I explicitly use 127.0.0.1):
tftp localhost
tftp> status
Connected to localhost.
Mode: netascii Verbose: off Tracing: off
Rexmt-interval: 5 seconds, Max-timeout: 25 seconds
tftp> get test
Received 21 bytes in 0.0 seconds
tftp> quit
However, none of my colleagues can access it from their machines (same network, same subnet mask) and, most importantly, I can't access it from the embedded board that I need it for (ethernet cables plugged into same switch). I've been googling for hours and haven't found a fix yet.
The fact that it works locally would suggest its a firewall/port problem but port 69 is allowed on iptables and I'm not sure what else I an do.
Since you have only INPUT rules, which means you only accept incoming traffic from port 69 but you have traffic going out aswell, that means you need to ACCEPT outgoing traffic aswell.
sudo iptables -A OUTPUT -p tcp --dport 69 -j ACCEPT
sudo iptables -A OUTPUT -p udp --dport 69 -j ACCEPT
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