Configuring secure shell, Overview of secure shell (ssh), Ssh version 2 support – Brocade BigIron RX Series Configuration Guide User Manual

Page 1071: Chapter 31

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BigIron RX Series Configuration Guide

993

53-1002484-04

Chapter

31

Configuring Secure Shell

In this chapter

Overview of Secure Shell (SSH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 993

Configuring SSH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 994

Displaying SSH connection information. . . . . . . . . . . . . . . . . . . . . . . . . . . 1001

Using secure copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1002

Overview of Secure Shell (SSH)

Secure Shell (SSH) is a mechanism for allowing secure remote access to management functions on
a BigIron RX. SSH provides a function similar to Telnet. Users can log into and configure the device
using a publicly or commercially available SSH client program, just as they can with Telnet.
However, unlike Telnet, which provides no security, SSH provides a secure, encrypted connection to
the device.

SSHv2 is supported on the device. Brocade’s SSHv2 implementation is compatible with all versions
of the SSHv2 protocol (2.1, 2.2, and so on). At the beginning of an SSH session, the device
negotiates the version of SSHv2 to be used. The highest version of SSHv2 supported by both the
device and the client is the version that is used for the session. Once the SSHv2 version is
negotiated, the encryption algorithm with the highest security ranking is selected to be used for the
session.

Also, the device support Secure Copy (SCP) for securely transferring files between a device and an
SCP-enabled remote hosts. Refer to

“Using secure copy”

on page 1002 for more information.

NOTE

The SSH feature includes software that is copyright Allegro Software Development Corporation.

SSH version 2 support

SSHv2 is a substantial revision of Secure Shell, comprising the following hybrid protocols and
definitions:

SSH Transport Layer Protocol

SSH Authentication Protocol

SSH Connection Protocol

SECSH Public Key File Format

SSH Fingerprint Format

SSH Protocol Assigned Numbers

SSH Transport Layer Encryption Modes

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