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Chapter 2 Configuring the Secure Shell Daemon Protocol
Configuring SSHD in the CSS
2-4
Cisco Content Services Switch Security Configuration Guide
OL-5650-02
Use the sshd keepalive command to enable SSHD keepalive. SSHD keepalive is
enabled by default.
To enable sending SSHD keepalives to the client, enter:
(config)# sshd keepalive
To disable sending SSHD keepalives, enter:
(config)# no sshd keepalive
Configuring SSHD Port
The default port number for SSH is 22. To specify the port number to which the
server listens for connections from clients, use the sshd port command. Enter a
port number of 22 or from 512 to 65535.
Note When you configure a new sshd port, you may receive a message saying that the
port is invalid or unavailable. This message can appear if the port is in use
internally by the CSS. If this message occurs, enter a different port number.
For example, to configure port number 65530 as the SSHD port, enter:
(config)# sshd port 65530
To reset the port number to the default of 22, enter:
(config)# no sshd port
Configuring SSHD Server-Keybits
To specify the number of bits in the ephemeral protocol server key, use the sshd
server-keybits command. The sshd server-keybits command pertains only to
SSH v1 connections. Enter the number of bits from 512 to 1024 (the valid range).
The default is 768.