American Power Conversion 250 A - Manual (Page 68)

How to Access the ATS Network Management Interface
58 InfraStruXure Power Generation System
Telnet and SSH
You can access the control console through Telnet or Secure SHell (SSH), depending on which is
enabled (an Administrator can enable these access methods through the Telnet/SSH option of the
Network menu). By default, Telnet is enabled. Enabling SSH automatically disables Telnet.
Telnet for basic access. Telnet provides the basic security of authentication by user name and
password, but not the high-security benefits of encryption. To use Telnet to access an ATS’s control
console from any computer on the same subnet:
1. At a command prompt, use the following command line, and then press E NTER
:
telnet address
For address , use the ATS’s IP address or DNS name (if configured).
2. Enter the user name and password (the defaults are apc and apc for an Administrator, and
device and apc for a Device Manager).
SSH for high-security access. If choosing the high security of SSL for the Web interface, use
Secure SHell (SSH) to access the control console. SSH encrypts user names, passwords, and
transmitted data.
The interface, user accounts, and user access rights are the same when accessing the control console
through either SSH or Telnet. In order to use SSH, you must have an SSH client program installed on
your computer and SSH must be properly configured.
SNMP
After adding the PowerNet MIB to a standard SNMP MIB browser, you can use that browser for
SNMP access to the ATS. The default read community name is public; the default read/write
community name is private.
See also
Refer to the InfraStruXure Power Generation System’s on-line Network Management
User’s Guide for more information about configuring and using SSH.
Note
If you enable SSL and SSH for their high-security authentication and encryption,
disable SNMP. Allowing SNMP access to the ATS compromises the high security
implemented by choosing SSL and SSH. To disable SNMP, you must be an
Administrator; use the SNMP option from the Network menu.