How to Overcome Problems with a Password Requiring at Transferring a File from Linux Centos 7 to Linux Synology

Transferring files between different operating systems can sometimes be a challenging task, especially when it requires a password. In this article, we will guide you on how to overcome problems with a password when transferring a file from Linux Centos 7 to Linux Synology.

Understanding the Issue

Before diving into the solution, let's first understand the problem. When transferring a file from Linux Centos 7 to Linux Synology, you might encounter a password prompt. This prompt occurs because the destination system, in this case, the Linux Synology, requires authentication to access its file system.

The Solution

To overcome this problem, we will use the SSH (Secure Shell) protocol to securely transfer files between the two systems without the need for a password prompt. Follow the steps below to accomplish this:

Step 1: Install SSH on Linux Centos 7

SSH is usually pre-installed on most Linux distributions, including Centos 7. However, if it is not installed on your system, you can install it by opening a terminal and running the following command:

Step 2: Generate SSH Keys

SSH keys are used for authentication without the need for a password. To generate SSH keys on your Linux Centos 7 system, follow these steps:

1. Open a terminal on your Linux Centos 7 system.
2. Run the following command to generate a new SSH key pair:
ssh-keygen -t rsa
3. Press Enter to accept the default file location and name for your SSH key.
4. When prompted, enter a passphrase for your SSH key. This passphrase will be required whenever you use the key for authentication.
5. Once the SSH key pair is generated, you will see a confirmation message.

Step 3: Copy the SSH Public Key to the Linux Synology

Now that you have generated the SSH key pair on your Linux Centos 7 system, you need to copy the public key to your Linux Synology system. Follow these steps:

1. Open a terminal on your Linux Centos 7 system.
2. Run the following command to copy the public key to your Linux Synology system:
ssh-copy-id username@synology_ip_address
3. Replace username with your Linux Synology username and synology_ip_address with the IP address of your Linux Synology system.
4. Enter your Linux Synology password when prompted.
5. Once the public key is copied, you will see a confirmation message.

Step 4: Test the SSH Connection

Now that the SSH public key is copied to your Linux Synology system, you can test the SSH connection without the need for a password. Follow these steps:

1. Open a terminal on your Linux Centos 7 system.
2. Run the following command to establish an SSH connection to your Linux Synology system:
ssh username@synology_ip_address
3. Replace username with your Linux Synology username and synology_ip_address with the IP address of your Linux Synology system.
4. If the SSH connection is successful, you will be logged into your Linux Synology system without a password prompt.

Step 5: Transfer Files

With the SSH connection established, you can now transfer files from your Linux Centos 7 system to your Linux Synology system using the scp command. Here's an example command:

Replace /path/to/local/file with the path to the file you want to transfer, username with your Linux Synology username, synology_ip_address with the IP address of your Linux Synology system, and /path/to/destination with the path to the destination directory on your Linux Synology system.

Conclusion

By following the steps outlined in this article, you should now be able to transfer files from your Linux Centos 7 system to your Linux Synology system without encountering any password prompts. The SSH protocol provides a secure and convenient way to transfer files between different operating systems.

References

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