ZyXEL Communications GS-4012F/4024 - Manual (Page 221)

GS-4012F/4024 User’s Guide
220 Chapter 33 Access Control
33.4 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 131 SSH Communication Example
33.5 How SSH works
The following table summarizes how a secure connection is established between two remote
hosts.
Apply Click Apply to save your changes to the switch’s run-time memory. The switch
loses these changes if it is turned off or loses power, so use the Save link on the
top navigation panel to save your changes to the non-volatile memory when you
are done configuring.
Cancel Click Cancel to reset the fields.
Table 87 Access Control: Logins (continued)
LABEL DESCRIPTION