How do I get lftp to use SSL/TLS security mechanism from the command line?

Question

I\'m trying to log into an ftps site. I\'ve tried giving the login creds at the command line (and putting set parameters in ~/.lftprc, the

Answer 1

What worked for me step by step with lftp:

1. get certificate of host with openssl s_client -connect :21 -starttls ftp, at the begining of result I got something like -----BEGIN CERTIFICATE----- MIIEQzCCAyu.....XjMO -----END CERTIFICATE-----
2. copy that -----BEGIN CERTIFICATE----- MIIEQzCCAyu.....XjMO -----END CERTIFICATE----- into /etc/ssl/certs/ca-certificates.crt
3. Into lftp configuration reference this certificate file adding to /etc/lftp.conf for systemwide set ssl:ca-file "/etc/ssl/certs/ca-certificates.crt"
4. and then do your sync or whatever with lftp, on my case it is lftp -u "${FTP_USER},${FTP_PWD}" ${FTP_HOST} -e "set net:timeout 10;mirror ${EXCLUDES} -R ${LOCAL_SOURCE_PATH} ${REMOTE_DEST_PATH} ; quit"