centOS6.5免秘钥登陆

  1.$ vi /etc/ssh/sshd_config

    找到以下内容，并去掉注释符”#“

    RSAAuthentication yes
    PubkeyAuthentication yes
    AuthorizedKeysFile      .ssh/authorized_keys

2.service sshd restart

3.生成证书公私钥的步骤：

   $ ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa 
   $ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

4.$ chmod 600 ~/.ssh/authorized_keys

    $ chmod 700 ~/.ssh

5.测试登陆 ssh localhost：

   $ ssh localhost

6.scp ~/.ssh/id_dsa.pub ql@192.168.1.111:/home/ql/

7.登陆远程主机

    $ cat id_dsa.pub >> ~/.ssh/authorized_keys

8.$chmod 600 ~/.ssh/authorized_keys

    $chmod 700 ~/.ssh

9.测试

    ssh ql@192.168.1.111

参考

http://hi.baidu.com/sinbad/item/ef5bd0f9cd5acf6c3d14856b