The Apache "KeepAlive" directive should be configured appropriately.
(1) On / Off
(1) Apache configuration file: KeepAlive directive
1.9.1 Denial of Service Mitigation (Level 1, Scorable)
Add or modify the KeepAlive directive in the Apache configuration to have a value of On, so that Keepalive connections are enabled. KeepAlive On page 71
1.13 Denial of Service Prevention Tuning p21
Rule Title: The KeepAlive directive must be enabled.
STIG ID: WA000-WWA022 W22 Rule ID: SV-32987r1_rule Vuln ID: V-13725
Severity: CAT II Class: Unclass
Rule Title: The KeepAlive directive must be enabled.
STIG ID: WA000-WWA022 A22 Rule ID: SV-32844r1_rule Vuln ID: V-13725
Severity: CAT II Class: Unclass
CIS
Security Configuration Benchmark For Apache Web Server 2.2
Version 3.1.0
June 11th, 2012
CIS
2008-06-11
Version 3.1.0
Prose (PDF)
Security Configuration Benchmark For Apache Web Server
CIS
2008-11-01
Version 2.2.0
Prose (PDF)
DISA STIG
Apache SERVER 2.2 for Windows
Release: 1 Benchmark Date: 23 Nov 2011
DISA
2011-11-23
V1R1
Prose (PDF)
DISA STIG
Apache SERVER 2.2 for Unix
Release: 1 Benchmark Date: 23 Nov 2011
DISA
2011-11-23
V1R1
Prose (PDF)