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Configuring Serv-U For SFTP Access  -  KB Article #1712

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Serv-U MFT Server includes support for SFTP, file transfer secured over a Secure Shell connection. This file transfer type, which originated on Linux, has made its way into the file transfer realm as well and has become more and more popular. The primary advantage of SFTP is that it only requires a single connection to control and send data, as opposed to the two ports used for FTP and FTPS. This makes firewall and router configuration far simpler, and because the communications take place over an SSH connection all information is secured. To configure Serv-U for SFTP access, follow the steps below:

Using An Existing Private Key

  • Obtain a private key file.
  • Place the private key file in a secured directory in the server. Use the Browse button in Serv-U to select the file.
  • Enter the password for the private key file.
  • Click the Save button.

Creating A Private Key

  • Click the Create Private Key button.
  • Enter the name of the private key (i.e. "MyDomain Key"), which is also used to name the storage file.
  • Enter the output path of the certificate (i.e., C:\Program Files\RhinoSoft\Serv-U\).
  • Select the Key Type (default of DSA is preferred, but RSA is available).
  • Select the Key Length (default of 1024 bits provides best performance, 2048 bits is a good median, while 4096 bits provides best security).
  • Enter the password to use for securing the private key file.