Copyright © 1997 by International Business Machines Corporation
DDNS Server Administrator Help
Use the Cache Times tab of the Host
Notebook to specify the time-to-live (TTL) values for the host, that is,
the maximum number of seconds that particular types of host resource records
will be cached at a caching server. The value specified for a particular type
of resource record is used for a record of that type when the record is
created.
The Cache Times tab has these fields:
- Host name cache time
- Specifies the maximum amount of time, in seconds, that the host name,
which is stored in the address (A) resource record, is to be cached. To
specify a time, you must uncheck the Use Domain Default Cache Time check box.
- Use domain default cache time
- If a cache time is not specified, indicates that the default cache time
specified on the Domain Options tab of the Primary Domain Notebook is to be
used.
- IP address cache time
- Specifies the maximum amount of time, in seconds, that the IP address,
which is stored in the pointer (PTR) resource record, is to be cached. The IP
address is used if reverse mapping is in effect for this domain. To specify a
time, you must uncheck the Use Domain Default Cache Time check box.
Note:
This tab is used only for hosts in a primary domain.
- Use domain default cache time
- If a cache time is not specified, indicates that the default cache time
specified on the Domain Options tab of the Primary Domain Notebook is to be
used.
- Text cache time
- Specifies the maximum amount of time, in seconds, that the text
information, which is stored in the text (TXT) resource record, is to be
cached. To specify a time, you must uncheck the Use Domain Default Cache Time
check box.
- Use domain default cache time
- If a cache time is not specified, indicates that the default cache time
specified on the Domain Options tab of the Primary Domain Notebook is to be
used.
- Mail exchange cache time
- Specifies the maximum amount of time, in seconds, that the mail exchange
information, which is stored in the mail exchange (MX) resource record, is to
be cached. To specify a time, you must uncheck the Use Domain Default Cache
Time check box.
- Use domain default cache time
- If a cache time is not specified, indicates that the default cache time
specified on the Domain Options tab of the Primary Domain Notebook is to be
used.
- Platform cache time
- Specifies the maximum amount of time, in seconds, that the platform
information, which is stored in the host information (HINFO) resource record,
is to be cached. To specify a time, you must uncheck the Use Domain Default
Cache Time check box.
- Use domain default cache time
- If a cache time is not specified, indicates that the default cache time
specified on the Domain Options tab of the Primary Domain Notebook is to be
used.
These push buttons are available on the Cache Times tab:
- OK
- Retains the configuration data in this notebook and closes the notebook.
- Cancel
- Cancels any actions taken in this notebook and closes the notebook.
- Help
- Displays information about the current notebook page.
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