SSH Protocols

SSH Protocols

SFTP/FISH Protocols

SFTP (SSH File Transfer Protocol) and FISH (Files transferred over Shell protocol) protocols let you perform different file management operations (accessing, transferring, etc) over the secure channel.

We provide support of SFTP (Secure File Transfer Protocol) by implementing the threaded daemon for SFTP connections processing. It lets you access, manage and transfer files directly to the container via SSH gate, and in such a way, ensures data security.

FISH protocol (Files transferred over Shell protocol) is supported by a number of popular FTP-clients and file managers (e.g. Midnight Commander, Konqueror, lftp, Krusader, etc). It permits access to securely manage a container’s file system. Let’s see the examples of using these protocols.

To access a necessary container via SFTP protocol, you need to have a private key on your local machine which corresponds to the public SSH key previously added to the Jelastic dashboard.
For Linux/MacOS users, this private key is saved automatically during key generation.
If you are a Windows user, you should additionally save the private key which corresponds to your public SSH key (we use the PuTTYgen tool as an example):ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6save private key

Now we can proceed to establishing the SFTP connection.

1. Run your FTP-client with SFTP protocol support. We use FileZilla as an example, therefore, navigate to the Edit > Settings menu item.ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6edit settings

2. In the opened window, navigate to the SFTP section. Select the Add keyfile button and choose your previously saved private SSH key. Click OK.ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6filezilla private key

3. After that, navigate to the File > Site Manager menu item.ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6site manager

4. In the opened window, click the New site button and specify the following parameters:

  • in the Host field state your SSH host (gate.{hoster_domain})
  • in the Port field enter 3022 value.
  • choose SFTP in the Protocol drop-down list.
  • choose Normal Logon Type.
  • in the User field, enter the Node ID of the desired container (can be seen in the particular environment’s containers list in the separate nodeid column via SSH console) and your User ID (number before @ symbol in your SSH connection string) separated with a hyphen. Finally, click the Connect button.ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6filezilla settings

5. After connection is established, you’ll see the list of container’s folders in the appropriate frames:ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6remote site

That’s all! Now you can proceed to managing and transferring your application’s files over the secure channel.

Let’s look at the example of FISH protocol use via establishing a secure connection between a remote container and the Midnight Commander tool.

1. Firstly, ensure you have a private key on your local machine which corresponds to the public SSH key previously added to the dashboard. The default path will be  /home/<username>/.ssh/id_rsa or /home/<username>/.ssh/id_dsa file, depending on the key pair type you’ve generated.

2. Check the ownership and attributes of your private key by entering one of the following commands:

  • for RSA key ls -la  /home/<username>/.ssh/id_rsa
  • for DSA key ls -la  /home/<username>/.ssh/id_dsa Ownership should be stated as your username and attributes should be 400or 600. I.e. your private key should not be available for reading by other users, otherwise a connection will not be established.

3. Install and run your Midnight Commander.

4. Select F9 to show the menu toolbar. Then open the left or right panel’s menu and choose Shell link item.ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6mc1

5. In the opened Shell link to machine frame, enter the following values separated with a hyphen:

  • Node ID of the desired container (can be seen in the particular environment’s containers list in the separate nodeid column via SSH console)
  • your SSH connection string ({user_id}@{ssh_host}:3022 ) Click OK.ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6mc2

6. When a connection is established, you will see the container’s file structure in the appropriate panel (in our case, on the right).ssh protocols c4d7958e2bfe5a5f906a0013b17aedb6mc3

Now, you can securely manage your container’s file system using RSH commands. Enjoy!