ZyXEL Communications OLT2406 User Manual page 371

Chapter 44 Access Control
Figure 226 SSH Communication Example
44.7.2.1 How SSH works
The following table summarizes how a secure connection is established between two remote hosts.
Figure 227 How SSH Works
Host Identification
1
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.
OLT2406 User's Guide
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