SSH password free login

Recent synchronization django Configuration requires secret free synchronization nas Catalog The configuration is sorted as follows

SSH Three steps to solve the secret free login

• 1. The client generates public and private keys
• 2. Upload public key to server
• 3. Test password free login

1. The client generates public and private keys

Local clients generate public and private keys ：（ Return all the way by default ）

ssh-keygen

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The above command will be in the user directory .ssh Create a public / private key folder

cd ~/.ssh

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ls

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Create two keys under ：

1. id_rsa （ Private key ）
2. id_rsa.pub ( Public key )

2. Upload public key to server

The server address used for the test here is ：192.168.235.22
The user is ：root

ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

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The above command is written to the server ssh The list goes down

cd ~/.ssh

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vim authorized_keys

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You can see that the client writes to the server id_rsa.pub （ Public key ） Content .

3. Test password free login

ssh [email protected]

Client pass ssh Connect to remote server , You can log in without password .

Add

[[email protected] .ssh]# ssh-copy-id -i ./id_rsa.pub "-p 58422 [email protected]"

Reference resources https://www.cnblogs.com/chuyiwang/p/10729591.html

Report errors

ssh-copy-id -i ./id_rsa.pub -p 41022 [email protected]
Bad port 'umask 077; test -d ~/.ssh || mkdir ~/.ssh ; cat >> ~/.ssh/authorized_keys && (test -x /sbin/restorecon && /sbin/restorecon ~/.ssh ~/.ssh/authorized_keys >/dev/null 2>&1 || true)'

Report a mistake again

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
d5:e0:49:db:cb:ce:09:99:38:b6:7f:20:9a:b6:a6:35.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending key in /root/.ssh/known_hosts:5
RSA host key for [101.200.120.97]:41022 has changed and you have requested strict checking.
Host key verification failed.

terms of settlement It's empty known_hosts file test ssh Password login is normal Use the default id_rsa  Write... Manually authorized    after ok