NIST 800-53 Rev 5

424 controls available

SC-7(3)moderatehigh

Access Points

System and Communications Protection

Control Statement

Limit the number of external network connections to the system.

Discussion

Limiting the number of external network connections facilitates monitoring of inbound and outbound communications traffic. The Trusted Internet Connection [DHS TIC](#4f42ee6e-86cc-403b-a51f-76c2b4f81b54) initiative is an example of a federal guideline that requires limits on the number of external network connections. Limiting the number of external network connections to the system is important during transition periods from older to newer technologies (e.g., transitioning from IPv4 to IPv6 network protocols). Such transitions may require implementing the older and newer technologies simultaneously during the transition period and thus increase the number of access points to the system.

Framework
NIST SP 800-53 Rev 5
Family
System and Communications Protection
Baselines
moderate, high

Related Frameworks

1 path across 1 framework
CCI1 mapping
CCI-001101
1.00
  • DISA · 2025-01-23 · disa_cci_list · equivalent

Related STIGs

79 STIGs reach this control through 70 CCIs. Expand a row to see the responsible NICE and O*NET roles.

Operating System — Server

1 STIG

Network Device

63 STIGs
Router Security Requirements Guide
52024-05-2835 of 108 findings match
Router Security Requirements Guide
V5R22025-09-1035 of 123 findings match
Show 55 more STIGs in this category →
Firewall Security Requirements Guide
32024-12-047 of 34 findings match
Firewall Security Requirements Guide
V3R32025-09-227 of 35 findings match
Application Layer Gateway Security Requirements Guide
V2R32025-09-155 of 160 findings match
Layer 2 Switch Security Requirements Guide
V3R42026-02-123 of 36 findings match
Layer 2 Switch Security Requirements Guide
32025-03-052 of 28 findings match
SDN Controller Security Requirements Guide
22024-05-282 of 34 findings match
Cisco ASA VPN Security Technical Implementation Guide
V2R22024-08-221 of 41 findings match

Web / Application Server

2 STIGs

Virtualization / Container

9 STIGs

Cloud / Identity Service

1 STIG

Endpoint Security Management

3 STIGs