1)編輯sshd.conf文件。修改三處:
A:Port 22;
B:# HostKeys for protocol version 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
C:PermitRootLogin yes
2)在Var目錄下新建/var/chroot/sshd文件
3)Chmod 744/var/chroot/sshd
4)Passwd root
5-1)#ssh-keygen -t dsa-f /etc/ssh/ssh_host_dsa_key
回車多次、直到執行完畢
5-2)#ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key
回車多次、直到執行完畢
6)#/usr/sbin/sshd