Chapter 29 System
NXC Series User’s Guide
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29.8.2 SSH Implementation on the NXC
Your NXC supports SSH versions 1 and 2 using RSA authentication and four encryption methods (AES,
3DES, Archfour, and Blowfish). The SSH server is implemented on the NXC for management using port 22
(by default).
29.8.3 Requirements for Using SSH
You must install an SSH client program on a client computer (Windows or Linux operating system) that is
used to connect to the NXC over SSH.
29.8.4 Configuring SSH
Click Configuration > System > SSH to change your NXC’s Secure Shell settings. Use this screen to specify
from which zones SSH can be used to manage the NXC. You can also specify from which IP addresses
the access can come.
Note: It is recommended that you disable Telnet and FTP when you configure SSH for secure
connections.
Figure 218 Configuration > System > SSH
The following table describes the labels in this screen.
Table 175 Configuration > System > SSH
LABEL DESCRIPTION
General Settings
Enable Select the check box to allow or disallow the computer with the IP address that matches the IP
address(es) in the Service Control table to access the NXC CLI using this service.
Version 1 Select the check box to have the NXC use both SSH version 1 and version 2 protocols. If you
clear the check box, the NXC uses only SSH version 2 protocol.
Server Port You may change the server port number for a service if needed, however you must use the
same port number in order to use that service for remote management.
Server Certificate Select the certificate whose corresponding private key is to be used to identify the NXC for SSH
connections. You must have certificates already configured in the My Certificates screen.
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