mirror of
https://github.com/StackExchange/dnscontrol.git
synced 2025-10-25 05:27:26 +08:00
26 lines
1 KiB
Markdown
26 lines
1 KiB
Markdown
---
|
|
name: DefaultTTL
|
|
parameters:
|
|
- ttl
|
|
parameter_types:
|
|
ttl: Duration
|
|
---
|
|
|
|
DefaultTTL sets the TTL for all subsequent records following it in a domain that do not explicitly set one with [`TTL`](../record-modifiers/TTL.md). If neither `DefaultTTL` or `TTL` exist for a record,
|
|
the record will inherit the DNSControl global internal default of 300 seconds. See also [`DEFAULTS`](../top-level-functions/DEFAULTS.md) to override the internal defaults.
|
|
|
|
NS records are currently a special case, and do not inherit from `DefaultTTL`. See [`NAMESERVER_TTL`](../domain-modifiers/NAMESERVER_TTL.md) to set a default TTL for all NS records.
|
|
|
|
|
|
{% code title="dnsconfig.js" %}
|
|
```javascript
|
|
D("example.com", REG_MY_PROVIDER, DnsProvider(DSP_MY_PROVIDER),
|
|
DefaultTTL("4h"),
|
|
A("@","1.2.3.4"), // uses default
|
|
A("foo", "2.3.4.5", TTL(600)), // overrides default
|
|
);
|
|
```
|
|
{% endcode %}
|
|
|
|
The DefaultTTL duration is the same format as [`TTL`](../record-modifiers/TTL.md), an integer number of seconds
|
|
or a string with a unit such as `"4d"`.
|