Auto Sync system clocks at least every 24 hours with an authoritative time server

Products

• ProxySG Software - SGOS
• ISG Proxy
• Advanced Secure Gateway Software - ASG

Issue/Introduction

Symantec ProxySG must compare internal information system clocks at least every 24 hours with an authoritative time server.

Cause

Verify the Symantec ProxySG is configured to use authoritative NTP servers (the NTP protocol itself enforces periodic checks at least every 24 hours).

1. Log on to the Web Management Console.
2. Click Configuration >> General >> Clock.
3. Confirm that the value of the "Query interval (minutes)" field is at least 1440 (24 hours in minutes).
4. Click "NTP", and confirm that the desired authoritative time servers are present.

Resolution

If Symantec ProxySG does not compare internal information system clocks at least every 24 hours with an authoritative time server, this is a finding.
Configure the Symantec ProxySG to use authoritative NTP servers (the NTP protocol itself enforces periodic checks at least every 24 hours).

1. Log on to the Web Management Console.
2. Select "Configuration", then "General", then "Clock".
3. Enter the desired time sync period into the "Query interval (minutes) field and click Apply.
4. Click "NTP", then "New", then "Add" and enter each desired authoritative time server.
5. Click "Apply".