DNSCacheFailedLookups — Legacy

This documentation is for legacy Kiwi Syslog Server versions 9.8.3 and older.

Use this Kiwi Syslog Server registry setting to Improve DNS name resolution performance by caching failed lookups. In the event that a DNS server responds with a valid response, but where the response does not include a resolved name, Kiwi Syslog Server will cache that response to avoid repeated queries to the DNS server. This situation can occur when querying a DNS server for the name of and IP address that the DNS server itself does not know. Instead of timing out, the DNS server sends a valid response of "NAME NOT FOUND". This is the sort of response that is cached, which avoids repeated queries to the DNS server for a name that will not be found. Failed lookups will be flushed from the cache at the frequency defined in "Flush entries after X minutes".

Section (32-bit Windows OS)	HKEY_LOCAL_MACHINE\SOFTWARE\SolarWinds\Syslogd\Properties
Section (64-bit Windows OS)	HKEY_LOCAL_MACHINE\Software\WOW6432Node\SolarWinds\Syslogd\Properties
Value (STRING)	ServiceUpdateTimeout
Min value	0
Max value	1
Default value
Type	1=Cache Failed DNS lookups, 0=Do not Cache Failed DNS lookups