Security Features

Security

Planning and	As a network device that passes information across the network, the
implementing	Environmental Monitoring Unit is subject to the same exposure as
security features	other devices on the network.
	Use the information in this section to plan and implement the security
	features appropriate for your environment.
Port assignments	If a Telnet, FTP, or Web 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 the Telnet, FTP, and Web 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 65535.
	For an example of how to access a client interface for which the port is
	non-standard, see Access to the Web interface on page 3.
User names,	All user names, passwords, and community names for SNMP are
passwords,	transferred over the network as plain text. A user who is capable of
community names	monitoring the network traffic can determine the user names and
	passwords required to log into the Environmental Monitoring Unit’s
	Control Console or Web interface as an Administrator or Device
	Manager. This security limitation of the protocols affects any device
	using Telnet, a Web server, or an SNMP version 1 agent.

Environmental Monitoring Unit: User’s Guide