What are HINFO Records?
HINFO records are system information records used to provide a definition of the hardware and operating system in use at a host. For security reasons these records are rarely used on public servers.
Video Tutorial: How to Add, Edit, and Delete Records
HINFO RECORD FIELDS
|Host||This will be the host name for the record, typically a computer or server within your domain.|
|TTL||The TTL (Time to Live) in seconds is the amount of time the record will cache in resolving name servers and web browsers. The longer the TTL, then the less frequently remote systems will lookup the DNS record, and the less query traffic the domain receives. The shorter the TTL, then the faster DNS changes will propagate in servers that have cached data. However this also contributes to a higher volume of query traffic the domain will receive.
Records configured with Failover or that change often should have TTL’s set anywhere from 180 to 600 (3 to 10 minutes cache).
Records that are static and don’t change often should have TTL’s set between 1800 (being on the low end) to 86400 seconds (30 minutes to 1 day cache).
If a change is needed for a record with a high TTL, then the TTL can be lowered prior to making the change and then raised back up again after.
|Hardware||A description of basic system hardware|
|OS||A description of the operating system and version|
ADD A HINFO RECORD
4. Enter a Name for the record and edit the default TTL if needed. Enter the name for the CPU and OS. The notes section lets you add a helpful note about this record if you wish. Click Save and Close.
In this screen, you will add the record information. Follow the steps below:
A) Name: This will be the hostname for your record. It is important to note, the domain name is automatically appended to the “Name” field of the record.
B) TTL: Edit the TTL. Time to Live is measured in seconds and is the amount of time the record will cache in resolving name servers and web browsers.
C) CPU: Identifiable name of the CPU you want to point the record to
D) OS: The operating system you want to point to
E) Note: Add a helpful note with keywords so you can search for your records later.
Information on the NX Domain feature can be found in the Disabling a Record tutorial.
EDIT A HINFO RECORD
3. Under the HINFO Records section, select a record by clicking the check mark next to it, then click the icon to edit a record.
Please note, you can not edit a record that has not been committed following its creation.
DELETE A HINFO RECORD
3. Under the HINFO Records section select a record by clicking the check mark next to it, click the icon to delete a record.
Please note, you can not delete a record that has not been committed following its creation.
4. The record will now show as strike through text, and is now in the queue of changes to be committed.