Chapter 1 Ssh Configuration; Ssh2.0 Overview; Algorithm And Key - H3C S5500-EI series Operation Manual

Hide thumbs Also See for S5500-EI series:

Table of Contents

Operation Manual – SSH

H3C S5500-EI Series Ethernet Switches

Chapter 1 SSH Configuration

When configuring SSH, go to these sections for information you are interested in:

Configuring the Device as an SSH Server

Configuring the Device as an SSH Client

Displaying and Maintaining SSH

SSH Server Configuration Examples

SSH Client Configuration Examples

1.1 SSH2.0 Overview

Secure Shell (SSH) offers an approach to securely logging into a remote device. By

encryption and strong authentication, it protects devices against attacks such as IP

spoofing and plain text password interception.

The device can not only work as an SSH server to support connections with SSH

clients, but also work as an SSH client to allow users to establish SSH connections with

a remote device acting as the SSH server.

Currently, when acting as an SSH server, the device supports two SSH versions: SSH2

and SSH1. When acting as an SSH client, the device supports SSH2 only.

Algorithm is a set of transformation rules for encryption and decryption. Information

without being encrypted is known as plain text, while information that is encrypted is

known as cipher text. Encryption and decryption are performed using a string of

characters called a key, which controls the transformation between plain text and cipher

text, for example, changing the plain text into cipher text or cipher text into plain text.

Figure 1-1 Encryption and decryption

Chapter 1 SSH Configuration

Table of Contents