The "FollowSymLinks" setting of the DocumentRoot should be enabled or disabled as appropriate.
(1) FollowSymLinks / -FollowSymLinks / +FollowSymLinks / None
(1) Apache configuration file: Options directive (in DocumentRoot Directory directive)
L1 15. Directory Functionality/Features Directives p23
1.8 Directory Functionality Control with the Options Directive p16
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)