SSH
H3C Low-End Ethernet Switches Configuration Examples
Chapter 1 SSH Overview
1-1
Chapter 1 SSH Overview
1.1 Introduction to SSH
Secure Shell (SSH) is designed to provide secure remote login and other security
services in insecure network environments. When users remotely access the switch
across an insecure network, SSH will automatically encrypt data before transmission
and decrypt data after they reach the destination to guarantee information security and
protect switches from such attacks as plain-text password interception. In addition,
SSH provides powerful authentication to defend against the man-in-the-middle attacks.
SSH uses the client/server mode, by which the SSH server accepts the connection
requests from SSH clients and provides authentication. SSH clients can establish SSH
connections and log into the SSH server through the SSH connections.
SSH also provides other functions, such as compressing the data to be transmitted to
speed up the transmission speed, functioning as Telnet, and providing secure channels
for FTP, PoP and even PPP.
Note:
For details about SSH functions supported on different Ethernet switches, refer to
related user manuals.
1.2 Support for SSH Functions
Table 1-1
List of SSH functions supported on the H3C low-end Ethernet switches
Function
Model
SSH server
SSH client
S3600-EI
z
z
S3600-SI
z
z
S5600
z
z
S5100
z
z
S3100
z
z
S3100-52P
z
z