I am trying to send/receive a file using TFTP from the network switch to ubuntu(VirtualBox on Windows 10 Pro), but getting an error code 5
By following the steps mentioned below it seems like my localhost is working with TFTP server, I can send and receive the file using localhost:
/home/abc# tftp localhost
tftp> put test
Sent 16 bytes in 0.0 seconds
tftp> get test
Received 16 bytes in 0.0 seconds
root@abc:/home/abc# ls -l /var/lib/tftpboot/
total 4
-rwxrwxrwx 1 root root 14 Sep 6 18:03 test
When I used the command in the switch to send/receive the file then I get the error message:
Trivial File Transfer Protocol
Opcode: Error Code (5)
[Destination File: test]
Error code: Access violation (2)
Error message: Access violation
[Expert Info (Warning/Response): TFTP ERROR packet]
[TFTP ERROR packet]
[Severity level: Warning]
[Group: Response]
Would you please guide me on how to fix this issue?
https://icesquare.com/wordpress/how-to-setup-tftp-on-ubuntu/
First, let’s install all the necessary packages:
sudo apt-get install xinetd tftpd tftp -y
Next, we need to create a configuration file:
sudo nano /etc/xinetd.d/tftp
Put the following content into the file.
service tftp
{
protocol = udp
port = 69
socket_type = dgram
wait = yes
user = nobody
server = /usr/sbin/in.tftpd
server_args = var/lib/tftpboot -s
disable = no
}
In the server_args, I have var/lib/tftpboot, which represents the location of the tftp root, i.e., /var/lib/tftpboot. Notice that I skip the root /.
Now let’s change the ownership of the directory:
sudo mkdir /var/lib/tftpboot
sudo chown -R nobody:nobody /var/lib/tftpboot
sudo chmod -R 777 /var/lib/tftpboot
and start the TFTP service:
sudo service xinetd stop
sudo service xinetd start
Verify the TFTP is running correctly or not:
netstat -na | grep LIST | grep 69
You should see something like this:
tcp 0 0 0.0.0.0:69 0.0.0.0:* LISTEN
Test: Upload a file to TFTP Server Now let’s test the TFTP server by logging into the server first:
tftp localhost and upload a file:
tftp> put myfile.jpg
Sent 56733279 bytes in 5.7 seconds
Quit:
q
Make sure that file has been uploaded:
ls -l /var/lib/tftpboot
Test: Download a file from TFTP Server Now, let’s go to a different directory and download the file we just upload.
cd some_other_directory
and log in to the tftp server again:
tftp localhost
and get the file:
tftp> get myfile.jpg
Received 56733279 bytes in 5.7 seconds
