3Com Switch 4210 9-Port, Configuration Manual

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396 C
HAPTER
36: SSH C
ONFIGURATION
Configuring the SSH
Client
An SSH client software or SSH2-capable switch can serve as an SSH client to access
the SSH server.
SSH Client Configuration
Tasks
Configuring the SSH
Client Using an SSH
Client Software
A variety of SSH client software are available, such as PuTTY and OpenSSH. For an
SSH client to establish a connection with an SSH server, use the following
commands:
n
■
Selecting the protocol for remote connection as SSH. Usually, a client can use a
variety of remote connection protocols, such as Telnet, Rlogin, and SSH. To
establish an SSH connection, you must select SSH
■
When a Switch 4210 acts as the SSH server, select 2.0 for the clients.
■
Specifying the private key file. On the server, if public key authentication is
enabled for an SSH user and a public key is set for the user, the private key file
corresponding to the public key must be specified on the client. RSA key pairs
and DSA key pairs are generated by a tool of the client software.
The following takes the client software of PuTTY, PuTTYGen and SSHKEY as
examples to illustrate how to configure the SSH client:
Generate a client key
To generate a client key, run PuTTYGen.exe, and select from the Parameters area
the type of key you want to generate, either SSH-2 RSA or SSH-2 DSA, then click
Generate.
Table 311 SSH client configuration tasks
Tasks Description
Configuring the SSH
client Using an SSH client software Use either approach
On an SSH2-capable switch
Table 312 Configuration tasks for using a client software
Tasks Description
“Generate a client key” Required for publickey authentication;
unnecessary for password
authentication
“Specify the IP address of the Server” Required
“Select a protocol for remote connection” Required
“Select an SSH version” Required
“Open an SSH connection with publickey
authentication” Required for publickey authentication;
unnecessary for password
authentication
“Open an SSH connection with password
authentication” Required for publickey authentication;
unnecessary for password
authentication