Enabling The Ssh Server Function; Configuring The User Interfaces For Ssh Clients - HP 3600 v2 Series Security Configuration Manual

To do...
Generate a DSA or RSA key pair
NOTE:
For more information about the public-key local create command, see
•
To support SSH clients that use different types of key pairs, generate both DSA and RSA key pairs on the
•
SSH server.
• The public-key local create rsa command generates a server RSA key pair and a host RSA key pair.
Each of the key pairs consists of a public key and a private key. The public key in the server key pair of
the SSH server is used in SSH1 to encrypt the session key for secure transmission of the key. As SSH2.0
uses the DH algorithm to generate the session key on the SSH server and client respectively, no session
key transmission is required in SSH2.0 and the server key pair is not used.
The length of the modulus of RSA server keys and host keys must be in the range of 512 to 2048 bits.
•
Some SSH2.0 clients require that the length of the key modulus be at least 768 bits on the SSH server
side.
The public-key local create dsa command generates only the host key pair. SSH1 does not support the
•
DSA algorithm.
The length of the modulus of DSA host keys must be in the range of 512 to 2048 bits. Some SSH2.0
•
clients require that the length of the key modulus be at least 768 bits on the SSH server side.

Enabling the SSH server function

Follow these steps to enable the SSH server function:
To do...
Enter system view
Enable the SSH server function

Configuring the user interfaces for SSH clients

An SSH client accesses the switch through a VTY user interface. You must configure the user interfaces for
SSH clients to allow SSH login. The configuration takes effect only for clients that log in after the
configuration.
Follow these steps to configure the protocols for a user interface to support:
To do...
Enter system view
Enter user interface view of one or
more user interfaces
Set the login authentication mode
to scheme
Use the command...
public-key local create { dsa | rsa }
Use the command...
system-view
ssh server enable
Use the command...
system-view
user-interface vty number
[ ending-number ]
authentication-mode scheme
276
Remarks
Required
By default, neither DSA key pair
nor RSA key pair exists.
Security Command Reference
Remarks
—
Required
Disabled by default
Remarks
—
—
Required
By default, the authentication
mode is password.
.