SSH私钥取消密码（passphrase ）

1. 使用openssl命令去掉私钥的密码

openssl rsa -in ~/.ssh/id_rsa -out ~/.ssh/id_rsa_new

2. 备份旧私钥

mv ~/.ssh/id_rsa ~/.ssh/id_rsa.backup

3. 使用新私钥

mv ~/.ssh/id_rsa_new ~/.ssh/id_rsa

4. 设置权限

chmod 600 ~/.ssh/id_rsa