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Monday, 3 August 2015

421 Sorry, cleartext sessions are not accepted on this server

I'm trying to access an FTP from my web browser, but I get the following error: 421 Sorry, cleartext sessions are not accepted on this server.
After the searching, I found "421 Sorry, cleartext sessions are not accepted on this server" means that the server is using "FTP over Explicit TLS/SSL".

Filezilla might be a good choice for connecting "FTP over Explicit TLS/SSL"

Here are the steps to connect FTP over the TLS


  • Download Filezilla using the URL https://filezilla-project.org/
  • Install FileZila into your local machine
  • Click on File Menu >> Site manager
  • Click on the New Site Button
  • Enter the Hostname, port, Username and Password
  • Select the encryption option "Required explicit FTP Over TLS"

  • Click on Ok Button