The Apache system logging should be configured appropriately.
(1) File path | pipe
(2) LogFormat | nickname
(1) Apache configuration file: CustomLog directive
L1 17. Logging General Directives p26
1.17 Logging p31
CIS Apache Benchmark for Unix v1.7 For Apache Versions 1.3 and 2.0
CIS
2007-07-01
Version 1.7
Prose (PDF)
Security Configuration Benchmark For Apache Web Server
CIS
2008-11-01
Version 2.2.0
Prose (PDF)