sed -i 's/^#PermitRootLogin.*/PermitRootLogin yes/' /etc/ssh/sshd_config
sed -i 's/^PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
#注意openeuler或者redhat系统还需要修改pam.d的sshd规则
sed -i '/account include password-auth/i account [success=1 default=ignore] pam_succeed_if.so user = root' /etc/pam.d/sshd
pkill sshd && /usr/sbin/sshd -p 22