Unable to start AutoFTP Backup in SolusVM: Connecting to failed

Symptoms

• Unable to start AutoFTP Backup. The following error is shown at SolusVM > Nodes > the_node > AutoFTP Backup > Log:
  

  CONFIG_TEXT: =======================================================================
  Backup Log Started : Mar 03 2021 23:00:02
  =======================================================================
  Connecting to 203.0.113.2 failed
  =======================================================================
  Backup Log Finished : Mar 03 2021 23:00:05
  =======================================================================

• While attempting to log in to the FTP server the following occurs:
  

  # ftp 203.0.113.2
  Connected to 203.0.113.2 (203.0.113.2 ).
  220 (vsFTPd 3.0.2)
  Name (203.0.113.2 :root): backup
  530 Non-anonymous sessions must use encryption.
  Login failed.

• The vsFTPd service is used on an FTP server with an SSL connection.

Cause

SolusVM does not support such kinds of connections, it uses ncftp service

Resolution

1. Log in to an FTP server via SSH
2. Disable SSL at the FTP server by deleting the folder with the SSL key:
   

   # rm -rf /etc/ssl/private

3. Open the file /etc/vsftpd/vsftpd.conf in any text editor and remove the following lines:
   

   CONFIG_TEXT: sl_enable=YES
   allow_anon_ssl=NO
   force_local_data_ssl=YES
   force_local_logins_ssl=YES
   ssl_tlsv1_1=YES
   ssl_tlsv1_2=YES
   ssl_tlsv1=NO
   ssl_sslv2=NO
   ssl_sslv3=NO
   require_ssl_reuse=YES
   ssl_ciphers=HIGH
   rsa_cert_file=/etc/ssl/certs/vsftpd.crt
   rsa_private_key_file=/etc/ssl/private/vsftpd.key

4. Restart the service
   

   # systemctl restart vsftpd