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Home > Success Center > Kiwi Syslog Server > Kiwi Syslog Server Administrator Guide > Registry settings for Kiwi Syslog Server > DNSCacheFailedLookups

DNSCacheFailedLookups

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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
Last modified
14:56, 2 Mar 2017

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