$ lftp
lftp :> set ftp:ssl-allow true
lftp :> set ftp:ssl-force true
lftp :> set ftp:ssl-protect-data true
lftp :> set ftp:ssl-protect-list true
lftp :> open -p 2121 sos13a-0501a.eu.hedani.net
lftp xxxx-xxxxx.xx.xxxxx.net:> cd /secure/gtd/VTXT
cd `/secure/gtd/VTXT' [Logging in...]