How to make lftp to use key for authentication for sftp on Linux?

I have successfully enabled password-less ssh login to a remote server, say example.com with username user.

But when I use lftp to log on the sftp by

lftp sftp://user@example.com

it still asks my password. How it make lftp use my private key to logon the remote lftp server?

There is a little trick to make lftp use your private key for authentication. The key is to pass an empty password to lftp as follows

lftp -u user, sftp://example.com
Answered by Eric Z Ma.

Eric Z Ma

Eric is a father and systems guy. Eric is interested in building high-performance and scalable distributed systems and related technologies. The views or opinions expressed here are solely Eric's own and do not necessarily represent those of any third parties.

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