Test docker run --rm --publish 2020:22 rastasheep/ubuntu-sshd:18.04 /usr/sbin/sshd -D -d -e swift run Links https://tools.ietf.org/html/rfc4253 https://tools.ietf.org/html/rfc4251 https://www.cisco.com/c/en/us/about/press/internet-protocol-journal/back-issues/table-contents-46/124-ssh.html