User guide

IOLAN+, IOLAN+ Rack & IOLAN+ 102/104 User guide
Introduction
Page 71
Chapter 5 Modem authentication and logging
Introduction
IOLAN+ provides authentication support to validate users connecting to the serial port, and
can update a host log file on connection states. Authentication and logging is achieved by
using a designated authentication host to validate users and keep connection information.
This unique facility takes the burden away from the unit and more importantly allows the
administrator to configure one host, rather than configuring multiple terminal servers.
The Host Authentication And Logging menu may be accessed via the administrator from the
access option in the Administration Menu.
Option Description
Authentication When the IOLAN+ port has authentication set to host or
both, the user is required to enter a user name followed by a
password when dialled in. The user ID and password are
forwarded to the authentication host for validation. By
setting the authentication hosts network port to 23 or 513,
this allows the user ID to be checked against the standard
Unix login system (see Tips on page 78). This feature also
allows proprietary user validation code to be written on any
TCP/IP platform by choosing another network port number.
Logging During the IOLAN+ start up, a telnet session is established
to the authentication host, with the pre-defined Log
Username and Logger password. Serial events like users
logging in and out are recorded in the defined Log File.
Note
RADIUS is often associated, but not required, for dial-in services. RADIUS offers three
major functions: authentication, logging and user services. IOLAN+ can be configured to
offer all of these features but without using RADIUS. This section explains how.