ZyXEL Communications OLT2406, User Manual

Page: 621 / 766

Chapter 85 Access Control
OLT2406 User’s Guide
621
85.9 SSH Overview
Unlike Telnet or FTP, which transmit data in clear text, SSH (Secure Shell) is a secure communication
protocol that combines authentication and data encryption to provide secure encrypted
communication between two hosts over an unsecured network.
Figure 284 SSH Communication Example
85.10 How SSH works
The following table summarizes how a secure connection is established between two remote hosts.
password encryption
Sets all password setting encryption. C 14
no password encryption
Disables password encryption. The encrypted
password will not be changed back to plain
text. C 14
Table 327 Password Commands (continued)
COMMAND DESCRIPTION M P