Setting up the switch to run ssh, Setting up the switch – Dell POWEREDGE M1000E User Manual

Page 244

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8-40

Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide

OL-13270-03

Chapter 8 Configuring Switch-Based Authentication

Configuring the Switch for Secure Shell

Setting Up the Switch to Run SSH

Follow these steps to set up your switch to run SSH:

1.

Download the cryptographic software image from

www.dell.com/support.

This step is required. For

more information, see the release notes for this release.

2.

Configure a hostname and IP domain name for the switch. Follow this procedure only if you are
configuring the switch as an SSH server.

3.

Generate an RSA key pair for the switch, which automatically enables SSH. Follow this procedure
only if you are configuring the switch as an SSH server.

4.

Configure user authentication for local or remote access. This step is required. For more
information, see the

“Configuring the Switch for Local Authentication and Authorization” section

on page 8-36

.

Beginning in privileged EXEC mode, follow these steps to configure a hostname and an IP domain name
and to generate an RSA key pair. This procedure is required if you are configuring the switch as an SSH
server.

To delete the RSA key pair, use the crypto key zeroize rsa global configuration command. After the
RSA key pair is deleted, the SSH server is automatically disabled.

Command

Purpose

Step 1

configure terminal

Enter global configuration mode.

Step 2

hostname hostname

Configure a hostname for your switch.

Step 3

ip domain-name domain_name

Configure a host domain for your switch.

Step 4

crypto key generate rsa

Enable the SSH server for local and remote authentication on the switch
and generate an RSA key pair.

We recommend that a minimum modulus size of 1024 bits.

When you generate RSA keys, you are prompted to enter a modulus
length. A longer modulus length might be more secure, but it takes longer
to generate and to use.

Step 5

end

Return to privileged EXEC mode.

Step 6

show ip ssh

or

show ssh

Show the version and configuration information for your SSH server.

Show the status of the SSH server on the switch.

Step 7

copy running-config startup-config

(Optional) Save your entries in the configuration file.

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