Campbell Scientific CR1000 Measurement and Control System - Manual (Page 72)

Section 5. System Overview
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LoggerNet:
• All datalogger functions and data are easily accessed via RS-232 and Ethernet
using Campbell Scientific datalogger support software.
• Cora command find-logger-security-code.
Telnet:
• Watch IP traffic in detail. IP traffic can reveal potentially sensitive
information such as FTP login usernames and passwords, and server
connection details including IP addresses and port numbers.
• Watch serial traffic with other dataloggers and devices A Modbus capable
power meter is an example.
• View data in the Public and Status tables.
• View the datalogger program, which may contain sensitive intellectual
property, security codes, usernames, passwords, connection information, and
detailed or revealing code comments.
FTP:
• Send and change datalogger programs.
• Send data that have been written to a file.
HTTP:
• Send datalogger programs.
• View table data.
• Get historical records or other files present on the datalogger drive spaces.
• More access is given when a .csipasswd is in place (so make sure users with
administrative rights have strong log-in credentials)
5.1.10.2 Pass-code Lockout
Pass-code lockouts (historically known simply as "security codes") are the oldest
method of securing a Campbell Scientific datalogger. Pass-code lockouts can
effectively lock out innocent tinkering and discourage wannabe hackers on non-IP
based telecommunications links. However, any serious hacker with physical
access to the datalogger or to the telecommunications hardware can, with only
minimal trouble, overcome the five-digit pass-codes blocking access. Systems
that can be adequately secured with pass-code lockouts are probably limited to:
• private, non-IP radio networks
• direct links (hardwire RS-232, short-haul, multidrop, fiber optic)
• non-IP satellite
• land-line, non-IP based telephone, where the telephone number is not
published.
• cellular phone wherein IP has been disabled, providing a strictly serial
connection.