NIST 800-53 5
NIST 800-53 · Rev 5Reference standard · cross-referenced from CMMC Full text with a free accountSA · System and Services Acquisition
SA-9(2)
External System Services | Identification of Functions, Ports, Protocols, and Services
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NIST 800-53 · Rev 4
- SA-9 (2)EXTERNAL INFORMATION SYSTEMS | IDENTIFICATION OF FUNCTIONS / PORTS / PROTOCOLS / SERVICES
“More than editorial or administrative change? N” about SA-9 (2) · NIST SP 800-53 Rev 4 → Rev 5 comparison, sheet "Rev4 Rev5 Compared" row 803
Source: NIST · https://csrc.nist.gov/pubs/sp/800/53/r5/final