name

(Optional) Specifies the name of a log file. The name must previously been defined by an access-log element in server.xml. If no name is given, the entry is recorded in the default log file.

iponly

(Optional) Instructs the server to log the IP address of the remote client rather than looking up and logging the DNS name. This improves performance if DNS is turned off. The value of iponly has no significance, as long as it exists; you may use iponly=1.

bucket

(Optional) Common to all obj.conf functions. Adds a bucket to monitor performance. For more information, see The bucket Parameter.