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

From Solaris 11 X86 Security Technical Implementation Guide

Part of SRG-OS-999999

Associated with: CCI-000366

SV-61083r1_rule The system must set maximum number of incoming connections to 1024.

Vulnerability 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

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