User’s Manual of WGSW-48000
107
Advanced Auto DoS Attack Prevention
Figure 4-7-22
Advanced Auto DoS Attack Prevention screenshot
4.7.9 SSH
SSH ( secure shell)
is a network protocol that allows data to be exchanged using a secure channel between two networked
devices. SSH was designed as a replacement for TELNET and other insecure remote shells, which sent information, notably
passwords, in plaintext, leaving them open for interception. The encryption used by SSH provides confidentiality and integrity of
data over an insecure network, such as the Internet.
SSH uses public-key cryptography to authenticate the remote computer and allow the remote computer to authenticate the user,
if necessary. SSH is typically used to log into a remote machine and execute commands.
An SSH server, by default, listens on the standard
TCP port 22
.
Figure 4-7-23
SSH page screenshot
