Operation Manual – SSH Terminal ServiceH3C S3100-52P Ethernet Switch Chapter 1 SSH Terminal Service1-1Chapter 1 SSH Terminal Service1.1 SSH Terminal Service1.1.1 Introduction to SSHSecure shell (SSH) provides secure communication and powerful authentication forremote user login to a switch over an insecure network, thus preventing assaults suchas IP address spoofing, plain-text password interception.Currently, the S3100-52P Ethernet Switches support SSH2.0. Acting as an SSH server,a switch allows for the connections of multiple SSH clients. Through SSH Client, a usercan establish a connection to a switch or UNIX host running SSH Server.Figure 1-1 and Figure 1-2 shows two ways to establish SSH connection between clientand server.z Establishing SSH connection through a LAN100BASE -TXServerEthernetWorkstationLaptopPCSSHSwitchSSH100BASE -TXServerEthernetWorkstationLaptopPCSSH ClientSwitchSSH Server100BASE -TXServerEthernetWorkstationLaptopPCSSHSwitchSSH100BASE -TXServer100BASE -TXServerEthernetWorkstationLaptopPCSSHSwitchSSH100BASE -TXServerEthernetWorkstationLaptopPCSSH ClientSwitchSSH ServerFigure 1-1 Establish SSH connection through a LANz Establishing SSH connection through a WAN