2.6. Configuring SSH

Function Introduction

The Secure Shell (SSH) is a protocol that provides a secure, remote connection to a device. SSH provides more security for remote connections than Telnet does by providing strong encryption when a device is authenticated. SSH supports the Data Encryption Standard (DES) encryption algorithm, the Triple DES (3DES) encryption algorithm, and password-based user authentication. The SSH feature has an SSH server and an SSH integrated client, which are applications that run on the switch. You can use an SSH client to connect to a switch running the SSH server. The SSH server works with the SSH client supported in this release and with SSH clients. The SSH client also works with the SSH server supported in this release and with SSH servers.

Principle Description

N/A

Create key for SSH

Switch# configure terminal

Switch(config)# rsa key a generate

Switch(config)# rsa key a export url flash:/a.pri private ssh2

Switch(config)# rsa key a export url flash:/a.pub public ssh2

Switch(config)# exit

Import the key

Switch# configure terminal

Switch(config)# rsa key importKey import url flash:/a.pub public ssh2

Switch(config)# username aaa privilege 4 password abc

Switch(config)# username aaa assign rsa key importKey

Switch(config)# exit

Use SSH to connect

[root@testbed012.aq.ru test]# ssh -i a.pri aaa@10.10.39.101
aaa@10.10.39.101's password:
Switch#