Generating Ssh Host Key Pairs - Cisco 4700M Administration Manual

Chapter 2 Enabling Remote Access to the ACE
Detailed Steps
Command
Step 1
config
Example:
host1/Admin# config
host1/Admin(config)#
Step 2
ssh maxsessions max_sessions
Example:
host1/Admin(config)# ssh maxsessions 3
no ssh maxsessions
Example:
host1/Admin(config)# no ssh maxsessions
Step 3
do show ssh maxsessions [ context_name ]
Example:
host1/Admin(config)# do show ssh
maxsessions
Maximum Sessions Allowed is 4
Step 4
do copy running-config startup-config
Example:
host1/Admin(config)# do copy
running-config startup-config

Generating SSH Host Key Pairs

This section describes how to generate an SSH host key pair. The ACE supports remote login over an
SSH session that uses private and public key pairs to perform authentication for the context. DSA and
RSA keys are generated in pairs—one public key and one private key. With this method of remote
connection, use a generated private and public key pair to participate in a secure communication by
encrypting and decrypting messages.
The global administrator performs the key generation in the Admin context. All contexts associated with
the ACE share the common key. There is only a single host-key pair.
Ensure that you have an SSH host-key pair with the appropriate version before enabling the SSH service
(see the
accepts three types of key pairs for use by SSH versions 1 and 2. Generate the SSH host key pair
according to the SSH client version used. The number of bits specified for each key pair ranges from
768 to 4096.
OL-20823-01
"Configuring Remote Network Management Traffic Services"
Cisco 4700 Series Application Control Engine Appliance Administration Guide
Purpose
Enters global configuration mode.
(Optional) Specifies the maximum number of concurrent SSH
sessions allowed for the associated context.
The max_sessions argument sets the maximum number of
concurrent SSH sessions allowed. The range is from 1 to 16 SSH
sessions for the Admin context and from 1 to 4 SSH sessions for
each user context. The defaults are 16 (Admin context) and 4
(user context).
(Optional) Reverts to the default maximum number of SSH
sessions for the context.
(Optional) Displays the maximum number of enabled SSH
sessions. Only context administrators can view SSH session
information associated with a particular context.
The optional context_name argument specifies the name of the
context for which the context administrator wants to view the
maximum number of SSH sessions. The context_name argument
is case sensitive.
(Optional) Copies the running configuration to the startup
configuration.
Enabling Remote Access to the ACE
section). The SSH service
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