如何配置HOST1,HOST2之间基于Oracle用户ssh无密码登录

1. login HOST1 as  oracle ,在～/.ssh/下生存公id_rsa.pub、私钥id_rsa

 ssh-keygen -t rsa

2. login HOST2  as  oracle ,在～/.ssh/下生存公id_rsa.pub、私钥id_rsa

3. on HOST1,copy 认证key到host2且生成authorized_keys 文件

scp id_rsa.pub HOST2:/~/.ssh/authorized_keys

4. on HOST2, 把本机的authorized key 合并到刚才拷贝过的keys中，并回copy一份给HOST1

cat id_rsa.pub >> ~/.ssh/authorized_keys

scp authorized_keys HOST1:~/.ssh/

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