FTPS Letsencrypt Certificate verification: Not trusted.

[manofsticks]

I have a Letsencrypt SSL cert, which is showing up valid in my web browser, and will allow me to connect via FTPS through Filezilla.

When trying to establish a FTPS connection using LFTP through Duplicity, I get the following error.

cd: Fatal error: Certificate verification: Not trusted (26:36:6D:6E:5B:18:5E:0B:55:23:E8:82:77:C1:C9:80:15:1E:0C:29)

The certificate matches the Sha1 fingerprint of my valid LetsEncrypt cert as seen in a web browser, so I know I didn't accidentally setup a self signed cert or anything.

Any advice?

[EmmanuelChanel]

I have same problem. My lftp doesn't trust my Let's Encrypt certificate, neither on Linux Mint. I got same problem on HexChat and I installed its latest version from the source. I thought that I might solve this problem by that way. But lftp's latest source isn't fixed on this problem.

[panlinux]

This issue is a duplicate of https://github.com/lavv17/lftp/issues/641