Chapter 29: Security
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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User authentication
Session management
Abnormal and error conditions
Configure Commands
CLI commands are provided to configure, operate, and maintain the server. All SSH and related commands are introduced
in this section but additional command details can be found in the Command Line Descriptions.
The following are commands used to configure various aspects of the SSH feature.
Configure Server Key
The server uses only one private key. This private key must exist before the server can be started. The MIB and running-
config store both the server public and private keys. The public key is stored only as a convenience for exporting to SSH
clients.
The C4/c CMTS provides a CLI command to generate the server key pair. If the system administrator prefers to generate
the key pair offline, a CLI command is available to import these. Remember, the server key pair must be DSA PEM-
formatted. For additional offline key management tips, see
To generate a server key pair:
configure crypto key generate dsa
To import a server public and/or private key:
configure crypto key import public-key <filename-specification>
configure crypto key import private-key <filename-specification>
To export a server public and/or private key:
configure crypto key export public-key <filename-specification>
configure crypto key export private-key <filename-specification>
Additionally, to export a server public key using a terminal's copy/paste feature:
show ssh host public-key dsa
To delete the server key pair:
configure crypto key zeroize dsa