Last login: Fri Aug 12 21:52:02 on ttys000

(base) hayun@Hayunui-MacBookAir ~ % sudo chmod 400/Users/hayun/Desktop/rainysummer.pem

Password:

usage: chmod [-fhv] [-R [-H | -L | -P]] [-a | +a | =a [i][# [ n]]] mode|entry file ...

chmod [-fhv] [-R [-H | -L | -P]] [-E | -C | -N | -i | -I] file ...

(base) hayun@Hayunui-MacBookAir ~ % ssh -i/Users/hayun/Desktop/rainysummer.pem ubuntu@3.39.222.124

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@     WARNING: UNPROTECTED PRIVATE KEY FILE!     @

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

Permissions 0644 for '/Users/hayun/Desktop/rainysummer.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 "/Users/hayun/Desktop/rainysummer.pem": bad permissions

ubuntu@3.39.222.124: Permission denied (publickey).

(base) hayun@Hayunui-MacBookAir ~ %  

5-9강 진행 중에 SSH로 접속하기를 하고 있는데 터미널에서 위와 같은 에러가 뜹니다.

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