MaxSOACacheEntryTtlLimit

HKLM\SYSTEM\CurrentControlSet\Services\DnsCache\Parameters

Data type	Range	Default value
REG_DWORD	0x0 - 0xFFFFFFFF seconds	0x12C (300 seconds = 5 minutes)

Description

Establishes the maximum time that an SOA record can remain in the DNS cache.

This entry establishes a ceiling for time-to-live (TTL) values of SOA records. By default, the TTL value in the DNS answer determines how long records are saved in the DNS cache. However, if the TTL value in the DNS answer exceeds the value of this entry, it is ignored, and the DNS client sets the TTL to the value of this entry.

Activation method

To make changes to this entry effective, restart the DNS client service or restart Windows 2000.

Note Image Note

This entry establishes a customized maximum TTL for SOA records. The maximum TTL for all other DNS records is determined by the value of MaxCacheEntryTtlLimit.