前言：

添加ssh密钥步骤：

chmod 700 .ssh #创建ssh
cd .ssh
chmod 700 authorized_keys #添加权限密钥
vim authorized_keys #编辑密钥 添加本地电脑ssh密钥
vim /etc/ssh/sshd_config #更改ssh配置文件

配置文件

# no default banner path
#Banner none

# Allow client to pass locale environment variables
AcceptEnv LANG LC_*

# override default of no subsystems
Subsystem       sftp    /usr/lib/openssh/sftp-server

# Example of overriding settings on a per-user basis
#Match User anoncvs
#       X11Forwarding no
#       AllowTcpForwarding no
#       PermitTTY no
#       ForceCommand cvs server



UseDNS no
AddressFamily inet
SyslogFacility AUTHPRIV
PermitRootLogin yes
PasswordAuthentication yes