In the user authentication settings, the authentication method, user name, password, user key, etc. may be designated
Method
Select an authentication method among Password, Public Key, Keyboard Interactive, GSSAPI and PKCS11. If the selected authentication method is not supported by the SSH server, a dialog box asking about the user authentication method is displayed during connection.

Note
If the PC running Xshell is utilizing an Xshell supported Kerberos module, Xshell can only automatically authenticate to the SSH server if GSSAPI authentication is selected.

User Name
Enter a user name for login. User name is the remote computer login account. If this field is left blank, a dialog box asking for the user name is displayed during connection.
Password
Enter a remote user account password. This value is valid when Password authentication is selected. If this field is left blank, a dialog box asking for the user authentication is displayed during connection. The password is encoded and saved in the user's PC. For greater security, leave this field blank.
User Key
Select a user key to use when Public Key authentication is selected. If this field is left blank, a dialog box asking about the user authentication is displayed during connection. If a user key is not in the list, a key must be created and registered in the remote SSH server.
Passphrase
Enter the passphrase for the selected user key. The entered key passphrase is encoded and saved in the user's PC. For greater security, leave this field blank.

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