User's Manual 82 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
c. For additional security, you can configure the 'Public Key' field to Enable. This
ensures that SSH access is only possible by using the RSA key and not by
username and password.
d. Configure the other SSH parameters as required. For a description of these
parameters, see ''SSH Parameters'' on page 967.
e. Click Apply.
3. Start the PuTTY Configuration program, and then do the following:
a. In the 'Category' tree, drill down to Connection, then SSH, and then Auth; the
'Options controlling SSH authentication' pane appears.
b. Under the 'Authentication parameters' group, click Browse and then locate the
private key file that you created and saved in Step 4.
4. Connect to the device with SSH using the username "Admin"; RSA key negotiation
occurs automatically and no password is required.
 To configure RSA public keys for Linux (using OpenSSH 4.3):
1. Run the following command to create a new key in the admin.key file and to save the
public portion to the admin.key.pub file:
ssh-keygen -f admin.key -N "" -b 1024
2. Open the admin.key.pub file, and then copy the encoded string from "ssh-rsa" to the
white space.
3. Open the CLI Settings page, and then paste the value copied in Step 2 into the 'Admin
Key' field.
4. Click Apply.
5. Connect to the device with SSH, using the following command (where xx.xx.xx.xx is
the device's IP address):
ssh -i admin.key xx.xx.xx.xx
RSA-key negotiation occurs automatically and no password is required.
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