R3102-R3103-HP 6600/HSR6600 Routers Security Configuration Guide

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{ If a client directly sends the user's public key information to the server, the server must specify the
client's public key and the specified public key must already exist. For more information about
public keys, see "Configuring a client's host public key."
{ If a client sends the user's public key information to the server through a digital certificate, the
server must specify the PKI domain for verifying the client certificate. For more information about
configuring a PKI domain, see "Configuring PKI." To make sure the authorized SSH users pass
the authentication, the specified PKI domain must have the proper CA certificate.
• If publickey authentication, whether with password authentication or not, is used, the command
level accessible to the user is set by the user privilege level command on the user interface. If only
password authentication is used, the command level accessible to the user is authorized by AAA.
• SSH1 does not support SFTP or SCP. For an SSH1 client, you must set the service type to stelnet or
all.
• For an SFTP SSH user, the working folder depends on the authentication method:
{ If only password authentication is used, the working folder is authorized by AAA.
{ If publickey authentication, whether with password authentication or not, is used, the working
folder is set by using the ssh user command.
• If you change the authentication mode or public key for an SSH user that has logged in, the change
takes effect only at the next login of the user.
To configure an SSH user and specify the service type and authentication method:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Create an SSH user, and
specify the service type
and authentication
method.
• Create an SSH user, and specify the service type
and authentication method for Stelnet users:
ssh user username service-type stelnet
authentication-type { password | { any |
password-publickey | publickey } assign
{ pki-domain pkiname | publickey keyname } }
• Create an SSH user, and specify the service type
and authentication method for all users, SCP or
SFTP users:
ssh user username service-type { all | scp | sftp }
authentication-type { password | { any |
password-publickey | publickey } assign
{ pki-domain pkiname | publickey keyname }
work-directory directory-name }
Use either command.
Setting the SSH management parameters
The SSH management parameters can be set to improve the security of SSH connections. The SSH
management parameters include:
• Compatibility between the SSH server and SSH1 clients.
• RSA server key pair update interval, applicable to users using SSH1 client.
• SSH user authentication timeout period. This parameter is used to reject a connection if the
authentication for the connection is not completed before the timeout period expires.
• Maximum number of SSH authentication attempts. This parameter is used to prevent malicious
password cracking.