User`s guide
Table Of Contents
- Figure 2.1: VMR Series - Front Panel (Model VMR-16HD20-1 Shown)
- Figure 2.2: VMR Series - Back Panel (Model VMR-16HD20-1 Shown)
- Figure 2.3: NPS Series - Front Panel (Model NPS-16HD20-1 Shown)
- Figure 2.4: NPS Series - Back Panel (Model NPS-16HD20-1 Shown)
- Figure 5.1: Boot Priority Example 1
- Figure 5.2: Boot Priority Example 2
- Figure 9.1: The Help Menu (Administrator Mode; Text Interface - VMR Shown)
- Figure 14.1: Web Access Parameters (Text Interface Only)
- Figure B.1: RS232 SetUp Port Interface
- 1. Introduction
- 2. Unit Description
- 3. Getting Started
- 4. Hardware Installation
- 5. Basic Configuration
- 5.1. Communicating with the VMR or NPS Unit
- 5.2. Configuration Menus
- 5.3. Defining System Parameters
- 5.4. User Accounts
- 5.5. Managing User Accounts
- 5.6. The Plug Group Directory
- 5.7. Defining Plug Parameters
- 5.8. Serial Port Configuration
- 5.9. Network Configuration
- 5.10. Save User Selected Parameters
- 6. Reboot Options
- 7. Alarm Configuration
- 8. The Status Screens
- 9. Operation
- 10. SSH Encryption
- 11. Syslog Messages
- 12. SNMP Traps
- 13. Operation via SNMP
- 14. Setting Up SSL Encryption
- 15. Saving and Restoring Configuration Parameters
- 16. Upgrading VMR/NPS Firmware
- 17. Command Reference Guide
- Appendix A. Specifications
- Appendix B. Interface Descriptions
- Appendix C. Customer Service
- Index
10-1
10. SSH Encryption
In addition to standard Telnet protocol, the VMR/NPS also supports SSH connections,
which provide secure, encrypted access via network. In order to communicate with the
VMR/NPS using SSH protocol, your network node must include an appropriate
SSH client.
Note that when the /K (Send SSH Key) command is invoked, the VMR/NPS can also
provide you with a public SSH key, which can be used to streamline connection to the
VMR/NPS when using SSH protocol.
Although you can establish an SSH connection to the unit without the public key, the
public key provides validation for the VMR/NPS, and once this key is supplied to the
SSH client, the client will no longer display a warning indicating that the VMR/NPS is not
a recognized user when the client attempts to establish a connection.
The /K command uses the following format:
/K <k> [Enter]
Where k is an argument that determines which type of public key will be displayed, and
the k argument offers the following options:
1. SSH1
2. SSH2 RSA
3. SSH2 DSA
For example, to obtain the public SSH key for an SSH2 RSA client, type /K 2 and then
press [Enter]. Note that when capturing the SSH key, you can either configure your
terminal application to receive the parameter file, or simply copy and paste the resulting
SSH key.
Notes:
• Although the VMR/NPS does not support SSH1, the /K 1 command will still
return a key for SSH1.
• When capturing the SSH key, you can either configure your terminal
application to receive the parameter file, or simply copy and paste the
resulting key