Friday, January 23, 2009

TTL Set in A and PTR Records Group Policy

This policy determines the Time-To-Live (TTL) for A and PTR resource records registered by the host computers.

To Enable this policy do the following.

1. Open group policy editor using command gpedit.msc
2. Browse to a node computer configuration -> Administrative Templates -> Network -> DnsClient and in the right pane right click on "TTL Set in A and PTR Records" policy and select properties

3. In the "TTL Set in A and PTR Records" dialog, select "enabled" option and enter TTL value in the seconds field, press apply and click OK button.

The minimum TTL value is 0 and maximum TTL is 4294967200
by default the TTL value is set to 600.

If this setting is disabled or not configured, TTL is not applied to host computer.


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