Solution for com.jcraft.jsch.JSchException: reject HostKey problem on Ubuntutest automation, scripting, system administration, etc. Just a random investigation with a workaround. So trying to connect to SFTP server using jsch library, but getting a nasty com.jcraft.jsch.JSchException: reject HostKey exception. This host is already present in ~/.ssh/known_hosts file, so it should not be problem, but it is. It turns out this problem happens if SFTP server is running on Ubun
