User`s guide
®
USER’S GUIDE
AUTOMATIC TRANSFER SWITCH
119
Port assignments
If a Telnet, FTP, SSH/SCP, or Web/SSL/TLS server uses a non-standard
port, a user must specify the port when using the client interface, such as a
Web browser. The non-standard port address becomes an extra
“password,” hiding the server to provide an additional level of security. The
TCP ports for which these servers listen are initially set at the standard “well
known ports” for the protocols. To hide the interfaces, use any port numbers
from 5000 to 32768.
User names, passwords, community names (SNMP)
All user names, passwords, and community names for SNMP are
transferred over the network as plain text. A user who is capable of
monitoring the network traffic can determine the user names and
passwords required to log on to the accounts of the control console or Web
interface of the Automatic Transfer Switch. If your network requires the
higher security of the encryption-based options available for the control
console and Web interface, be sure to disable SNMP access or set its
access to read-only. (Read-only access allows you to receive status
information and to use SNMP traps.)
If you
If you are using an FTP server, use any port numbers from
5001 to 32768.