Apache Reference: http_core, IdentityCheck
Perform User Name Identification Lookups
Syntax: IdentityCheck A
Example: IdentityCheck on
Since: Apache 1.0
This directive supports RFC 1413-complaint user identification
lookups, which can be used to log the remote user name for each
connection. It works only if the remote host runs identd
or something similar. The information is logged in the
access log file and should not be trusted in any way except as part of
rudimentary usage tracking. Note that this directive can create serious
latency problems in accessing your server, because every request
causes a lookup to be performed.