The system must set maximum number of half-open TCP connections to 4096.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-216141 | SOL-11.1-050110 | SV-216141r959010_rule | CCI-000366 | medium |
| Description | ||||
| This setting controls how many half-open connections can exist for a TCP port. It is necessary to control the number of completed connections to the system to provide some protection against denial of service attacks. | ||||
| STIG | Date | |||
| Solaris 11 X86 Security Technical Implementation Guide | 2025-05-05 | |||
Related Frameworks
4 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-6
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.4.1
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.4.2
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000366
1.00
- DISA · 3 · disa_xccdf · related
Details
Check Text (C-216141r959010_chk)
Determine if the number of half open TCP connections is set to 4096.
# ipadm show-prop -p _conn_req_max_q0 -co current tcp
If the value of "4096" is not returned, this is a finding.
Fix Text (F-17377r372806_fix)
The Network Management profile is required
Configure maximum TCP connections for IPv4 and IPv6.
# pfexec ipadm set-prop -p _conn_req_max_q0=4096 tcp