1-14
z With the filename argument specified, you can export the RSA or DSA host public key to a file so
that you can configure the key at a remote end by importing the file. If the filename argument is not
specified, this command displays the host public key information on the screen in a specified
format.
z The RSA host public key format can be SSH1, SSH2 and OpenSSH, while the DSA host public key
format can be SSH2 and OpenSSH. DSA does not support the format of SSH1.
Configuring the SSH Client
The configurations required on the SSH client are related to the authentication mode that the SSH
server uses. In addition, if an SSH client does not support first-time authentication, you need to
configure the public key of the server on the client, so that the client can authenticate the server.
SSH Client Configuration Task List
Complete the following tasks to configure the SSH client:
SSH client configuration task
Scenario
For a client running SSH
client software
For a client assumed by an
SSH2-capable switch
The authentication mode is
password
Configuring an SSH Client that
Runs SSH Client Software
Configuring an SSH Client
Assumed by an SSH2-Capable
Switch
The authentication mode is
publickey
Configuring an SSH Client that
Runs SSH Client Software
Configuring an SSH Client
Assumed by an SSH2-Capable
Switch
Whether
first-authentication is
supported
—
Configuring an SSH Client
Assumed by an SSH2-Capable
Switch
Configuring an SSH Client that Runs 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:
Complete the following tasks to configure an SSH client that runs SSH client software:
Task Remarks
Generating a client key
Required for publickey authentication;
unnecessary for password authentication
Specifying the IP address of the Server Required
Selecting a protocol for remote connection Required
Selecting an SSH version Required
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