apt install openssh-server

apt install -y openssh-server

systemctl status sshd
service ssh start
service ssh status
service ssh restart

docker run ubuntu
/etc/ssh/sshd_config, PermitRootLogin yes, service ssh restart

rpl --backup "#PermitRootLogin prohibit-password" "PermitRootLogin yes" /etc/ssh/sshd_config && service ssh restart

sed -i".BAK" s/"#PermitRootLogin prohibit-password"/"PermitRootLogin yes"/g /etc/ssh/sshd_config

See also

• sshd, sshd logs, sshd -t, sshd -T, sshd_config, sftp
• OpenSSH (changelog): /etc/ssh/sshd_config | /etc/ssh/ssh_config | ~/.ssh/ | openSSL | sshd logs | sftp | scp | authorized_keys | ssh-keygen | ssh-keyscan | ssh-add | ssh-agent | ssh | Ssh -O stop | ssh-copy-id | CheckHostIP | UseKeychain, OpenSSF