AMX NETLINX MASTER NXC-ME260 - Manual (Page 31)

NetLinx Security
27 NXC-ME260 NetLinx Master-Ethernet Card/Module
NetLinx Security
NetLinx Masters (version 2.10.80 or later) have built-in security capabilities. It will require a valid
user name and password to access the NetLinx System’s Telnet, HTTP and FTP servers.
The security capabilities are configured and applied via a Telnet connection or the NetLinx
Master’s RS-232 terminal interface (the DB9 PROGRAM port on the rear of the Controller).
NetLinx Security Features
NetLinx security allows you to define access rights for users or groups.
The following table lists the NetLinx features that the administrator (or other 'qualified' user) may
grant or deny access to.
Security Terms Used in This Document
User
A user is a single potential client of the NetLinx Master.
Group
A group is a logical collection of users. Note that any properties possessed by groups (i.e., access
rights, directory associations, etc.) are inherited by all of the members of the group.
Always use the Program port when entering potentially sensitive security information. The Telnet
server interface exposes this security information to the network in clear text format, which would
be rather easy to intercept by an unauthorized client. By using the Program port, there is some
level of security during the configuration of the database, due to the physical proximity of the user
to the system.
A "User" represents a single potential client of the NetLinx Master, while a "Group" represents a
logical collection of users. Any properties possessed by groups (i.e., access rights, directory
associations, etc.) are inherited by all the members of the group.
NetLinx Security Features
NetLinx Master Security Configuration The user has access to the security configuration commands of the
Master. Only those users with security configuration access rights
granted will have access to the security configuration
commands.
Telnet Security The user has access to the Telnet server functionality. All basic
commands are available to the user.
Terminal (PROGRAM port) Security The user has access to the Terminal (RS232 PROGRAM port) server
functionality. All basic commands are available to the user.
HTTP (web server) Security The user has access to the HTTP server functionality. Directory
associations assign specific directories/files to a particular user.
FTP Security The user has access to the FTP server functionality. Only the adminis-
trator account has access to the root directory; all other 'qualified' cli-
ents are restricted to the /user/ directory and its 'tree'.