SSH 无需输密码登陆 passwordless logins using sshagent

;配置

vi /etc/ssh/sshd_config

;保证如下属性：

;RSAAuthentication yes

;PubkeyAuthentication yes

;生成公钥

skx@lappy:~$ ssh-keygen -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/home/skx/.ssh/id_rsa):

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /home/skx/.ssh/id_rsa.

Your public key has been saved in /home/skx/.ssh/id_rsa.pub.

;上传公钥

ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.0.10

/etc/init.d/sshd restart

;OK了

ssh 192.168.0.1

另：

Address *.*.*.* maps to localhost, but this does not map back to the address – POSSIBLE BREAK-IN ATTEMPT!
解决办法：
vi /etc/ssh/sshd_config

GSSAPIAuthentication yes
修改成：
GSSAPIAuthentication no