Linux scp不用输入密码

如果服务器A scp传输给服务器B不用输入密码：

 

服务器A：

1. 切换相关用户

 

2. ssh-keygen -b 1024 -t rsa

 Generating public/private rsa key pair.
        Enter file in which to save the key (/root/.ssh/id_rsa):
        Enter passphrase (empty for no passphrase):            <-- 直接输入回车
        Enter same passphrase again:                           <-- 直接输入回车
        Your identification has been saved in /root/.ssh/id_rsa.
        Your public key has been saved in /root/.ssh/id_rsa.pub.
        The key fingerprint is:
        49:9c:8a:8f:bc:19:5e:8c:c0:10:d3:15:60:a3:32:1croot@Client

 

3. 传输公钥文件：

scp -p .ssh/id_rsa.pubroot@192.168.3.206:/root/.ssh/authorized_keys 

 

 

输入密码

 

4. 测试传输文件：

scp 1.txt 用户名@服务器b:路径