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cis-apache-9.2

DevOps & Security
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Ensure KeepAlive Is Enabled

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/CIS_benchmarks/Server_Software/Apache_HTTP_Server/CIS_Apache_HTTP_Server_2.2_Benchmark_v3.6.0/cis-apache-9.2/SKILL.md

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Ensure KeepAlive Is Enabled

Description

The KeepAlive directive controls whether Apache will reuse the same TCP connection per client to process subsequent HTTP requests from that client. It is recommended that the KeepAlive directive be set to On.

Rationale

Allowing per-client reuse of TCP sockets reduces the amount of system and network resources required to serve requests. This efficiency gain may improve a server's resiliency to DoS attacks.

Impact

None documented

Audit Procedure

Perform the following steps to determine if the recommended state is implemented:

Verify that the KeepAlive directive in the Apache configuration either has a value of On or is not present. If the directive is not present, the default value is On.

Remediation

Perform the following to implement the recommended state:

Add or modify the KeepAlive directive in the Apache configuration to have a value of On.

KeepAlive On

Default Value

KeepAlive On

References

  1. https://httpd.apache.org/docs/2.2/mod/core.html#keepalive

CIS Controls

Version 6

9 Limitation and Control of Network Ports, Protocols, and Services Limitation and Control of Network Ports, Protocols, and Services

Version 7

5.1 Establish Secure Configurations Maintain documented, standard security configuration standards for all authorized operating systems and software.

Profile

Level 1 | Scored