Enabling Ssh With Rsa Public Key For Cli - AudioCodes Mediant 800B User Manual


To enable Telnet:
1. Open the Telnet/SSH Settings page (Configuration tab > System menu >
Management > Telnet/SSH Settings).
2. Set the 'Embedded Telnet Server' parameter to Enable Unsecured or Enable
Secured (i.e, SSL).
3. Configure the other Tenet parameters as required. For a description of these
parameters, see ''Telnet Parameters'' on page 711.
4. Click Submit, and then reset the device with a burn-to-flash for your settings to take
effect.
7.2.2

Enabling SSH with RSA Public Key for CLI

Unless configured for TLS, Telnet is not secure as it requires passwords to be transmitted
in clear text. To overcome this, Secure SHell (SSH) is used, which is the de-facto standard
for secure CLI. SSH 2.0 is a protocol built above TCP, providing methods for key
exchange, authentication, encryption, and authorization.
SSH requires appropriate client software for the management PC. Most Linux distributions
have OpenSSH pre-installed; Windows-based PCs require an SSH client software such as
PuTTY,
http://www.chiark.greenend.org.uk/~sgtatham/putty.
By default, SSH uses the same username and password as the Telnet and Web server.
SSH supports 1024/2048-bit RSA public keys, providing carrier-grade security. Follow the
instructions below to configure the device with an administrator RSA key as a means of
strong authentication.

To enable SSH and configure RSA public keys for Windows (using PuTTY SSH
software):
1. Start the PuTTY Key Generator program, and then do the following:
a. Under the 'Parameters' group, do the following:
♦
♦
b. Under the 'Actions' group, click Generate and then follow the on-screen
instructions.
c. Under the 'Actions' group, click Save private key to save the new private key to a
file (*.ppk) on your PC.
User's Manual
which can
Select the SSH-2 RSA option.
In the 'Number of bits in a generated key' field, enter "1024" bits.
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