SSH connection Error

There may be some strange errors when SSH is parsed here:

1. SSH does not allow root login

The following error is reported when SSH is connected:

[Email protected] ~]# ssh-p 10022 [email protected]

[email protected] ' s password:

Permission denied, please try again.

[email protected] ' s password:

Permission denied, please try again.

[email protected] ' s password:

Permission denied (Publickey,gssapi-keyex,gssapi-with-mic,password).

The password entered is correct but cannot be connected.

This is because the destination host does not allow root login and is a secure policy. You can modify the configuration on the destination host:

Vi/etc/ssh/sshd_config

Change Permitrootlogin No to Permitrootlogin Yes

And then

/etc/init.d/sshd restart

You can log in again.

2, SSH does not authenticate password-based authentication

The error is as follows when SSH connects:

[Email protected] ~]# ssh-p 10022 [email protected]

Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

Do not give the opportunity to enter a password.

Because the authentication of passwords is not allowed on the destination host, it is always safe to allow only host connections with public keys. To modify the destination host configuration:

Vi/etc/ssh/sshd_config

Change Passwordauthentication No to passwordauthentication Yes

/etc/init.d/sshd restart

You can log in again.

3, fingerprint information does not match

This is the case when SSH occurs:

[[Email protected]]# ssh 192.168.1.3
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ warning:remote HOST Identification has changed! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT is POSSIBLE this SOMEONE is DOING SOMETHING nasty!
Someone could is eavesdropping on your right now (Man-in-the-middle attack)!
It is also possible, the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
07:6c:c2:ce:82:d6:77:3c:b0:20:b0:e0:f2:2d:47:84.
Please contact your system administrator.
Add correct host key in/root/.ssh/known_hosts to get rid of the this message.
Offending key In/root/.ssh/known_hosts:5
RSA host key for 192.168.1.3 had changed and you have requested strict checking.
Host Key verification failed.

This is mainly a fingerprint verification failure caused by the previous connection to the host, but now the information has changed, so resulting in a mismatch. The fingerprint information of the host computer will be available locally.

>/root/.ssh/known_hosts

Connect again

SSH connection Error