Configuring an SFTP Server on ServerStadium

Introduction

Setting up an SFTP server on ServerStadium (VM Pricing, Dedicated Servers) ensures a secure method for transferring files. This setup is particularly beneficial for businesses and individuals looking to safeguard their file transfers against unauthorized access.

Configuring an SFTP Server on ServerStadium

Prerequisites

• A ServerStadium VM or dedicated server (VM Pricing, Dedicated Servers).
• Basic knowledge of Linux server administration and SSH.

Step 1: Select and Prepare Your ServerStadium Server

1. Choose a Server: Opt for a ServerStadium VM or dedicated server based on your file storage and transfer needs.
2. Server Setup:

   sudo apt update
   sudo apt upgrade

Step 2: Install and Configure SSH Server

SFTP is part of the SSH server, which is typically installed by default:

1. Install OpenSSH Server (if not already installed):

   sudo apt install openssh-server

2. Configure SSH for SFTP:

   Edit the SSH configuration file:

   sudo nano /etc/ssh/sshd_config

   Ensure the following line is present and uncommented:
   

   Subsystem sftp /usr/lib/openssh/sftp-server

Step 3: Create a User for SFTP

1. Add a New User for SFTP:

   sudo adduser sftpuser

   Follow the prompts to set up the new user.

2. Assign a Directory for SFTP User:

   Set up a directory for the SFTP user and restrict permissions:

   sudo mkdir -p /home/sftpuser/files
   sudo chown sftpuser:sftpuser /home/sftpuser/files
   sudo chmod 700 /home/sftpuser/files

Step 4: Restrict SFTP User Access

1. Restrict SFTP User:

   Modify the SSH configuration to restrict the SFTP user to their directory:

   sudo nano /etc/ssh/sshd_config

   Add the following at the end of the file:
   

   Match User sftpuser
   ForceCommand internal-sftp
   PasswordAuthentication yes
   ChrootDirectory /home/sftpuser
   PermitTunnel no
   AllowAgentForwarding no
   AllowTcpForwarding no
   X11Forwarding no

2. Restart SSH Service:

   sudo systemctl restart sshd

Step 5: Accessing the SFTP Server

1. Connect to SFTP:

   Use an SFTP client with the following details:

   • Host: your_server_ip
   • Username: sftpuser
   • Password: The password you set for sftpuser

   The connection will be on the default SSH port (22).

Conclusion

Your SFTP server is now ready on ServerStadium, offering a secure method for transferring files. For additional support or resources, visit our knowledge base or contact our support team.