Configure SSH server settings

Use the SSH Settings page to specify the maximum number of SSH connections and to set up an SSH message banner with text that you want users to see when logging onto SecureTransport from an SSH client.

  1. Select Setup > SSH Settings.
  2. The SSH Settings page is displayed.
  3. Provide the following SSH settings:
    • Maximum Number of Connections – Type the maximum number of SSH clients that can simultaneously connect to the SSH server. If the maximum number of concurrent connections is reached, SecureTransport prevents any further connections before the user is authenticated.
    • Message Banner – Type the message that you want users to see when logging in to the SecureTransport Server from an SSH client. For example, you can enter a legal notice, a disclaimer, or a welcome message.
  4. If you increase the value of Maximum Number of Connections, you must also increase the value of JAVA_MEM_MAX in the <FILEDRIVEHOME>/bin/start_sshd script.
  5. The script uses the JAVA_MEM_MAX value to set the maximum heap size for the Java Virtual Machine (JVM). The SSH server allocates memory in the heap for each connection (and frees it when the connection is closed). To avoid SSH service interruptions when no memory is available in the Java heap, you must configure JAVA_MEM_MAX to the desired Maximum Number of Connections (as defined in the previous step) multiplied by 10,000 Kibibytes. However, in the script file, you must convert this result to Megabytes (10,000 Kibibytes is equivalent to 10.24 Megabytes). For example, 500 concurrent connections would require a value of 500 * 10,000 KiB = 5,000,000 KiB. This is equivalent to 5120 Megabytes, so enter this in the script file as:
  6. JAVA_MEM_MAX="5120M"
  7. Use M to specify Megabytes. Do not insert a space between the number and the M.
  8. Click Update.
  9. After updating the SSH settings, restart the SSH server. See Start and stop servers.

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