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Quidway NetEngine80
Configuration Guide - Basic Configurations
9 Telnet and SSH
Issue 04 (2009-12-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
9-49
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ssh client first-time enable
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9.8.5 Example for Authenticating SSH Through RADIUS
Networking Requirements
When the RADIUS user is connected to the server, the SSH server sends the authentication
information about the SSH client, including the user name and password to the RADIUS
server that is compatible with the TACACS server for authentication.
The RADIUS server authenticates the user and sends the result (passed or failed) back to the
SSH server. If the authentication is passed, the user level is included in the result. The SSH
server determines whether the SSH client is allowed to set up a connection according to the
authentication result.
The networking diagram is shown in
Figure 9-10
.
Figure 9-10
Networking diagram of authenticating the SSH through RADIUS
SSH Server
SSH Client
RADIUS Server
Configuration Roadmap
The configuration roadmap is as follows:
1.
Configure the RADIUS template on the SSH server.
2.
Configure a domain on the SSH server.
3.
Create a user on the RADIUS server.
4.
Generate the local key pair on STelnet client and SSH server respectively. The SSH
server monitors the port number.
5.
Generate the local key pair on the client and SSH server respectively.
6.
Generate the RSA public key on SSH server and bind the RSA public key of the SSH
client to [email protected].
7.
Enable STelnet and SFTP services on the SSH server.
8.
Configure service mode and authorization directory of the SSH user.
9.
Users [email protected] and [email protected] log in to the SSH server through STelnet and
SFTP respectively.
Data Preparation
To complete the configuration, you need the following data:
z
Configure the password authentications for the two SSH users respectively.
z
RADIUS authentication
z
Name of the RADIUS template