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V-216142

CAT III (Low)

The system must set maximum number of incoming connections to 1024.

Rule ID

SV-216142r959010_rule

STIG

Solaris 11 X86 Security Technical Implementation Guide

Version

V3R5

CCIs

CCI-000366

Discussion

This setting controls the maximum number of incoming connections that can be accepted on a TCP port limiting exposure to denial of service attacks.

Check Content

Determine if the maximum number of incoming connections is set to 1024.

# ipadm show-prop -p _conn_req_max_q -co current tcp

If the value returned is smaller than "1024", this is a finding. 

In environments where connection numbers are high, such as a busy web server, this value may need to be increased.

Fix Text

The Network Management profile is required.

Configure maximum number of incoming connections.

# pfexec ipadm set-prop -p _conn_req_max_q=1024 tcp