ssh username@server
ssh root@10.1.0.101
If we press no
, the ssh will disconnect.
For safety reason, any input here will not be shown.
If the password is wrong, you will get the tips Permission denied, please try again.
ssh-keygen
Press down enter to save the default directory
ssh-copy-id username@server_ip
Server 10.1.0.101
Connected Server 10.1.0.102
RSA (Rivest–Shamir–Adleman) is a public-key cryptosystem that is widely used for secure data transmission.
RSA (cryptosystem) - Wikipedia
In a public-key cryptosystem, the encryption key is public and distinct from the decryption key, which is kept secret (private).
public key: send to others, can be public
private key: secret key, we need to make it safe