ssh cert file


# pub


```type
- BEGIN SSH2 PUBLIC KEY 
-Comment: "sungle3737@yonsei.ac.kr"~
- END SSH2 PUBLIC KEY 
-```
puttigen


```typechmod 700 ~/.ssh    chmod 600 ~/.ssh/id_rsa    chmod 644 ~/.ssh/id_rsa.pub      chmod 644 ~/.ssh/authorized_keys    chmod 644 ~/.ssh/known_hosts```
# ppk


```typePuTTY-User-Key-File-2: ssh-rsaEncryption: aes256-cbcComment: imported-openssh-keyPublic-Lines: 6~Private-Lines: 14~```
puttygen



# pem (or none)


```type
--BEGIN RSA PRIVATE KEY
--~
--END RSA PRIVATE KEY
--```
cloud ssh 







