Ssh User Authentication-Type - 3Com Switch 4500 Family Manual

[Sysname] display ssh user-information 1
Username
1

ssh user authentication-type

Syntax
ssh user username authentication-type { all | password | password-publickey | publickey | rsa }
undo ssh user username authentication-type
View
System view
Parameters
username: SSH user name, a string of 1 to 184 characters. It cannot contain any of these characters:
slash (/), backslash (\), colon (:), asterisk (*), question mark (?), less than sign (<), greater than sign (>),
and the vertical bar sign (|). In addition, the @ sign can appear up to once, the username part (that is,
the string before the @ sign) cannot be more than 55 characters, and the domain name part cannot be
more than 128 characters.
all: Specifies that the authentication mode for the SSH user can be either password authentication or
publickey authentication.
password: Specifies the authentication mode for the SSH user as password authentication.
password-publickey: Specifies the authentication mode for the SSH user as password and publickey.
publickey: Specifies the authentication mode for the SSH user as publickey authentication.
rsa: Specifies the authentication mode for the SSH user as publickey authentication. The authentication
modes specified by the rsa keyword and publickey keyword are implemented in the same way
For the password-publickey authentication type:
SSH1 client users can access the switch as long as they pass one of the two authentications.
SSH2 client users can access the switch only when they pass both the authentications.
Description
Use the ssh user authentication-type command to specify the authentication mode for SSH users on
the server.
Use the undo ssh user authentication-type command to remove the configuration.
The differences between password authentication, publickey authentication, and password-publickey
authentication are:
Password authentication is vulnerable to attacks.
Publickey authentication provides more secure SSH connections than password authentication
does. The mode is easy to use and prevents illegal operations such as malicious password guess.
Authentication-type
publickey
1-27
User-public-key-name
127.0.0.1
Service-type
stelnet