Amazon AWS is one of the most popular cloud platforms, widely used by developers to deploy and host their applications. FileZilla, on the other hand, is a free and open-source FTP client that is commonly used for transferring files to and from an AWS instance. However, sometimes users encounter a "permission denied" error while transferring files using FileZilla on AWS. In this article, we will discuss the possible solutions to fix this error.

Check File Permissions: The first and foremost step is to check the file permissions on the server. Ensure that the files or directories you are trying to transfer have the necessary permissions to be accessed by the user. You can check the permissions by running the following command in the terminal:

ls -l 

The above command will show the file permissions in the output. Ensure that the user has the required permissions to access the files.

Change File Permissions: If the file permissions are not set correctly, you can change them using the following command:

chmod 755 filename 

The above command will give the user read, write, and execute permissions on the file. You can also change the permissions on a directory using the following command:

chmod 755 directoryname 

This will give the user read, write, and execute permissions on the directory.

Check User Permissions: Sometimes, the user does not have the necessary permissions to access the files or directories. In such cases, you can grant the required permissions to the user using the following command:

sudo chown -R username:username directoryname/ 

for example:

sudo chown -R ubuntu /etc/nginx/sites-available
sudo chmod -R 755 /etc/nginx/sites-available

This will change the ownership of the directory to the specified user.

Use SFTP Instead of FTP: If the above solutions do not work, you can try using SFTP (Secure File Transfer Protocol) instead of FTP. SFTP encrypts the file transfer and provides secure access to the server. To use SFTP, you need to configure the SSH server on the AWS instance.

Check Firewall Settings: Sometimes, the firewall settings on the AWS instance can block the FTP traffic. Ensure that the firewall settings allow FTP traffic to the instance.

In conclusion, the "permission denied" error on FileZilla while transferring files on AWS can be fixed by checking the file permissions, changing the file permissions, checking the user permissions, using SFTP, and checking the firewall settings. By following these steps, you can successfully transfer files using FileZilla on AWS.