Implementing Secure Shell on Cisco IOS XR Software
Configuration Examples for Implementing Secure Shell
SC-156
Cisco IOS XR System Security Configuration Guide
You must configure a host domain for the router using the domain-name global configuration
command.
• The number of allowable SSH connections is limited to the maximum number of virtual terminal
lines configured for the router. Each SSH connection uses a vty resource.
• SSH uses either local security or the security protocol that is configured through AAA on your router
for user authentication. When configuring AAA, you must ensure that the console is not running
under AAA by applying a keyword in the global configuration mode to disable AAA on the console.
Configuration Examples for Implementing Secure Shell
This section provides the following configuration example:
• Configuring Secure Shell: Example, page SC-156
Configuring Secure Shell: Example
The following example shows how to configure SSHv2 by creating a hostname, defining a domain name,
enabling the SSH server for local and remote authentication on the router by generating a DSA key pair,
bringing up the SSH server, and saving the configuration commands to the running configuration file.
After SSH has been configured, the SFTP feature is available on the router.
configure
hostname router1
domain name cisco.com
exit
crypto key generate dsa
configure
ssh server
end
Additional References
The following sections provide references related to implementing secure shell.
Related Documents
Related Topic Document Title
AAA commands: complete command syntax,
command modes, command history, defaults, usage
guidelines, and examples
Authentication, Authorization, and Accounting Commands on
Cisco IOS XR Software module in the Cisco IOS XR System Security
Command Reference, Release 3.5
AAA configuration tasks Configuring AAA Services on Cisco IOS XR Software module in the
Cisco IOS XR System Security Configuration Guide, Release 3.5
Host services and applications commands: complete
command syntax, command modes, command history,
defaults, usage guidelines, and examples
Host Services and Applications Commands on Cisco IOS XR
Software module in the Cisco IOS XR IP Addresses and Services
Command Reference, Release 3.5
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