AWS 更换 SSH 登陆密钥对

SSH AWS About 1,407 words

生成公钥

根据pem生成

ssh-keygen -f test.pem -y

输出

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCg790nrFFilxxxxxmfNDEV6r4UtpBNYzHLwFYu/JKqtuvxxxxxLjGCBOfacZ7Zwyoc/JYIaDMZRFzBi8xxxxxGgIPmMGP8HugCX/X7YDTbSNa0xxxxxPsvg48jLavGtKPIqOEiChRuncqe7b/UVyz7JDK28txxxxxQr7Zb4kzNQzDTLtobUEhNSS4qAUgR6gRm/6gxxxxxo/VJt9kSD7np1+9GzVuhHWx7bgYM9RwosBJs0TsTRRykRgEd2lj3vF3f4c63yxJxxxxxvgmDZPubCUU5wTHGDMxJ8c+/tT0gvxoXpOdlqccgxxxxxt08npHQin8VXw2TEV87emFJVXWR

编辑配置

vim ~/.ssh/authorized_keys

根据输出的公钥添加到authorized_keys文件中,注意尾部添加空格和pem名称。

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCg790nrFFilxxxxxmfNDEV6r4UtpBNYzHLwFYu/JKqtuvxxxxxLjGCBOfacZ7Zwyoc/JYIaDMZRFzBi8xxxxxGgIPmMGP8HugCX/X7YDTbSNa0xxxxxPsvg48jLavGtKPIqOEiChRuncqe7b/UVyz7JDK28txxxxxQr7Zb4kzNQzDTLtobUEhNSS4qAUgR6gRm/6gxxxxxo/VJt9kSD7np1+9GzVuhHWx7bgYM9RwosBJs0TsTRRykRgEd2lj3vF3f4c63yxJxxxxxvgmDZPubCUU5wTHGDMxJ8c+/tT0gvxoXpOdlqccgxxxxxt08npHQin8VXw2TEV87emFJVXWR test.pem

错误信息

[root@hello ~]$ ssh-keygen -f test.pem -y
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Permissions 0644 for 'test.pem' are too open.
It is required that your private key files are NOT accessible by others.
This private key will be ignored.
Load key "test.pem": bad permissions

解决方法

chmod 600 test.pem

参考文档

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html

Views: 3,274 · Posted: 2021-07-13

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