ZyXEL ES-2108PWR User Guide - Page 213
SSH Overview, How SSH works
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Chapter 27 Access Control Table 86 Management > Access Control > Logins (continued) LABEL DESCRIPTION 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 begin configuring this screen afresh. 27.5 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 126 SSH Communication Example 27.6 How SSH works The following table summarizes how a secure connection is established between two remote hosts. ES-2108 Series User's Guide 213