Web Management Guide-R07

Table Of Contents
Chapter 12
| Security Measures
Configuring the Secure Shell
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Authentication Retries – Specifies the number of authentication attempts
that a client is allowed before authentication fails and the client has to restart
the authentication process. (Range: 1-5 times; Default: 3)
Web Interface
To configure the SSH server:
1. Click Security, SSH.
2. Select Configure Global from the Step list.
3. Enable the SSH server.
4. Adjust the authentication parameters as required.
5. Click Apply.
Figure 164: Configuring the SSH Server
Generating the
Host Key Pair
Use the Security > SSH (Configure Host Key - Generate) page to generate a host
public/private key pair used to provide secure communications between an SSH
client and the switch. After generating this key pair, you must provide the host
public key to SSH clients and import the clients public key to the switch as
described in the section “Importing User Public Keys” on page 274.
Note:
A host key pair must be configured on the switch before you can enable the
SSH server. See “Configuring the SSH Server” on page 271.
Parameters
These parameters are displayed:
Host-Key Type – The key type used to generate the host key pair (i.e., public
and private keys). (Range: RSA)
The SSH server uses RSA for key exchange when the client first establishes a
connection with the switch, and then negotiates with the client to select either
DES (56-bit) or 3DES (168-bit) for data encryption.