Technical information

Large Business Communications Systems

4-60 Issue 7 June 2001

In addition to those SVN features already discussed (SVN Authorization Code

Violation Notification, SVN Referral Call With Announcement, and the

new/renamed Referral Call Buttons), DEFINITY G3V3 and later releases offer the

following SVN features:

 SVN Remote Access Violation Notification with Remote Access Kill After

“n” Attempts

This feature disables the Remote Access feature following a Remote

Access security violation. Any attempt to use the Remote Access feature

once it has been disabled will fail even if a correct barrier code or barrier

code/authorization code combination is supplied until the feature is

re-enabled.

 SVN Login Violation Notification with Login Kill After “n” Attempts

This feature “locks” a valid login ID following a login security violation

involving that login ID. Any attempt to use a login ID disabled following a

combination is supplied until the disabled login ID is re-enabled.

DEFINITY G3V4 offers an additional feature:

 The status remote access command provides information on the state of

remote access. Valid states are enabled, disabled, svn-disabled, or

not-administered. Valid barrier code states include active and expired.

For information on administering these parts of the Security Violation Notification

Feature, see Chapter 4.

Security Violations Measurement Report

This report identifies invalid login attempts and the entry of invalid barrier codes. It

monitors the administration, maintenance, and Remote Access ports. A login

violation is reported when a forced disconnect occurs (after three invalid

attempts). Review the report daily to track invalid attempts to log in or to enter

barrier codes, both of which may indicate hacker activity.

For DEFINITY ECS and DEFINITY G1, G3, and System 75:

 Use list measurements security-violations to obtain this report, which is

updated hourly.

For DEFINITY G1 and System 75, only counts for invalid login attempts

and invalid Remote Access attempts are provided.