{{tag>ftp troubleshooting ssl}}

====== Ftp ftp_login(): SSL/TLS handshake failed  ======

  PHP Warning:  ftp_login(): SSL/TLS handshake failed in /home/client/libraries/php-ftp-client/FtpClient/FtpWrapper.php on line 85
  PHP Warning:  ftp_login(): AUTH TLS successful in /home/client/libraries/php-ftp-client/FtpClient/FtpWrapper.php on line 85

Happend when a PHP client programm was trying to upload pdf files to ProFtpd server with lower OpenSSL version (Debian 10 -> Debian 9).

Solved by upgrading the server with ProFtpd to Debian 10.
====== Tested on ======
  * Debian 9, 10
  * php 7.3

====== See also ======
[[wiki:ftp_pasv_operation_not_permitted_error|Ftp PASV Operation not permitted error]]
====== References ======