TFTP Server On Linux - Deathraymind/ARUBA205 GitHub Wiki

TFTP Server Setup on Linux using Tftpd-hpa

This documentation provides step-by-step instructions for setting up a TFTP (Trivial File Transfer Protocol) server on a Linux system using the Tftpd-hpa package. TFTP is commonly used for network booting and transferring files between devices.

Step 1: Install Tftpd-hpa

Open a terminal window on your Linux machine.
Install the Tftpd-hpa package using the following command:
```
sudo apt-get install tftpd-hpa
```
If you're using a different Linux distribution, use its package manager to install Tftpd-hpa.

Step 2: Configure Tftpd-hpa

Edit the Tftpd-hpa configuration file located at /etc/default/tftpd-hpa using your preferred text editor. In this example, we'll use the nano text editor:
```
sudo nano /etc/default/tftpd-hpa
```
Inside the configuration file, configure the following options:
```
# /etc/default/tftpd-hpa

TFTP_USERNAME="tftp"
TFTP_DIRECTORY="/tftp"
TFTP_ADDRESS=":69"
TFTP_OPTIONS="--secure --create"
```
- TFTP_USERNAME: Set the TFTP server's username, which is typically "tftp."
- TFTP_DIRECTORY: Specify the directory from which TFTP will serve files. In this example, we've set it to /tftp.
- TFTP_ADDRESS: Specify the TFTP server's listening address and port. The default port is 69.
- TFTP_OPTIONS: Configure any additional TFTP options. In this example, we use --secure to enable security checks and --create to allow file creation.
Save the changes and exit the text editor.

Step 3: Create the TFTP Directory

Create the directory specified in the TFTP_DIRECTORY variable. In this example, we use /tftp:
```
sudo mkdir -p /tftp
```

Step 4: Set Permissions

Adjust the permissions on the TFTP directory to ensure that files can be read and written by the TFTP server:
```
sudo chown -R nobody:nogroup /tftp
```
```
sudo ufw allow 69
```

To move the files to the /tftp directory use this command

mv ArubaInstant_Taurus_6.5.4.25_86114 /tftp

Step 5: Restart Tftpd-hpa

After configuring and creating the TFTP directory, restart the Tftpd-hpa service to apply the changes:
```
sudo systemctl restart tftpd-hpa
```

Step 6: Test the TFTP Server

To test your TFTP server, you can use a TFTP client. In this example, we use the tftp command to test it locally:
```
tftp localhost
```
Within the TFTP client, you can use the get and put commands to retrieve or send files to the TFTP server:
- To retrieve a file from the TFTP server:
```
tftp> get testfile.txt
```
- To send a file to the TFTP server:
```
tftp> put testfile.txt
```
Replace localhost with the IP address or hostname of your TFTP server if you're testing from a different machine. Ensure that the file you're trying to retrieve or send exists in the TFTP directory.

Step 7: Managing File Permissions

To avoid errors, ensure that the file you add to the TFTP directory has appropriate permissions. You can use the following command to set permissions on a specific file, for example, file.bin:
```
sudo chmod 666 /tftp/file.bin
```

Your TFTP server is now set up and ready to serve files. You can use it for tasks such as network booting or transferring configuration files to network devices.