![background image](http://html1.mh-extra.com/html/zyxel-communications/onu-2024-series/onu-2024-series_user-manual_944573210.webp)
Chapter 27 Access Control
ONU User’s Guide
210
27.5 How SSH works
The following table summarizes how a secure connection is established between two remote
hosts.
Figure 117
How SSH Works
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.
Summary of Contents for ONU-2024 Series
Page 2: ......
Page 7: ...Safety Warnings ONU User s Guide 7 This product is recyclable Dispose of it properly...
Page 8: ...Safety Warnings ONU User s Guide 8...
Page 20: ...Table of Contents ONU User s Guide 20...
Page 28: ...List of Tables ONU User s Guide 28...
Page 30: ...30...
Page 38: ...Chapter 2 Hardware Installation and Connection ONU User s Guide 38...
Page 44: ...Chapter 3 Hardware Connections ONU User s Guide 44...
Page 46: ...46...
Page 64: ...Chapter 6 System Status and Port Statistics ONU User s Guide 64...
Page 76: ...Chapter 7 Basic Setting ONU User s Guide 76...
Page 78: ...78...
Page 108: ...Chapter 11 Spanning Tree Protocol ONU User s Guide 108...
Page 158: ...Chapter 20 Authentication Accounting ONU User s Guide 158...
Page 174: ...Chapter 22 Loop Guard ONU User s Guide 174...
Page 175: ...175 PART IV IP Application Static Route 177 Differentiated Services 181 DHCP 185...
Page 176: ...176...
Page 180: ...Chapter 23 Static Route ONU User s Guide 180...
Page 192: ...192...
Page 216: ...Chapter 27 Access Control ONU User s Guide 216...
Page 222: ...Chapter 29 Syslog ONU User s Guide 222...
Page 236: ...236...
Page 254: ...Appendix C Legal Information ONU User s Guide 254...
Page 260: ...Appendix D Customer Support ONU User s Guide 260...
Page 268: ...Index ONU User s Guide 268...