ZyXEL Communications IP PBX X6004 - Manual (Page 467)

Chapter 33 Remote Management
X6004 User’s Guide
467
1
Host Identification
The SSH client sends a connection request to the SSH server. The server
identifies itself with a host key. The client encrypts a randomly generated
session key with the host key and server key and sends the result back to the
server.
The client automatically saves any new server public keys. In subsequent
connections, the server public key is checked against the saved version on the
client computer.
2
Encryption Method
Once the identification is verified, both the client and server must agree on the
type of encryption method to use.
3
Authentication and Data Transmission
After the identification is verified and data encryption activated, a secure tunnel
is established between the client and the server. The client then sends its
authentication information (user name and password) to the server to log in to
the server.
Secure Telnet Using SSH Examples
This section shows two examples using a command interface and a graphical
interface SSH client program to remotely access the X6004. The configuration and
connection steps are similar for most SSH client programs. Refer to your SSH
client program user’s guide.
Example 1: Microsoft Windows
This section describes how to access the X6004 using the Secure Shell Client
program.
1
Launch the SSH client and specify the connection information (IP address, port
number or device name) for the X6004.
2
Configure the SSH client to accept connection using SSH version 1.