1. ssh-keygen #生成.ssh2/id_dsa_2048_a .ssh2/id_dsa_2048_a.pub
2. echo "IdKey id_dsa_2048_a" >> .ssh2/identification
3. 把 .ssh2/id_dsa_2048_a.pub上传到服务器的.ssh2目录下,并改名字(如pub_172.25.1.124),以便跟其他机器区分
4. echo "IdKey pub_172.25.1.124" >>authorization
5. 这样本机就可不需要密码登录服务器。