How to set passphrase for a server key.

Do you want to secure your key with a passphrase?, It’s very simple. For example, if you have server on the aws, Generally, it’s a key authentication.

How to set passphrase for a server key.

ssh -i yourkey.pem [email protected] -v

So you want to set the passphrase?

ssh-keygen -p -f  yourkey.pem

Type the passphrase you want to set

That’s all, Once it’s updated,it asks you for the passphrase when login to the server like this

debug1: key_parse_private2: missing begin marker
debug1: key_parse_private_pem: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
Enter passphrasefor  'yourkey.pem':

Thanks