XFTP is an extension to LFTP (written by Alexander V. Lukyanov, http://lftp.yar.ru) and offers pre-configured settings for so-called "FTPES" (explicit FTPS) and "FTPIS" (implicit FTPS).
Both are pre-configured to work in passive mode and could be used by calling their protocol aliases "ftpes:" (ftpes://server.tld) or "ftpis:" (ftpis://server.tld). The pre-configuration could be overridden and also complemented using LFTP parameters, for example: -e "set ftp:passive-mode no" .
Notice...