Thursday, February 5, 2009

EDNSCacheTimeout Registry Key

This reg key determines the amount of time the EDns information should be kept in cache.

Key Name: EDnsCacheTimeout
Type: reg_dword
Default: 604,800 secs (one week)
Location: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\DNS\Parameters
Functionality: Determines the EDnsCacheTimeout
By default, the default value of EDnsCacheTimeout is set to 604,800 seconds (one week).
The EdnsCacheTimeout Can range from 3,600 secs (1 hour) and 15,724,800 secs (182 days).

Note: This reg key specifies the cachetimoout, on this dns server, of EDns extension information supported by other DNS servers that have responded to a query, from this dns server, with a OPT resource record.


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