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RFC 9887
Title: Terminal Access Controller Access-Control System
Plus (TACACS+) over TLS 1.3
Author: T. Dahm,
J. Heasley,
D.C. Medway Gash,
A. Ota
Status: Standards Track
Stream: IETF
Date: December 2025
Mailbox: [email protected],
[email protected],
[email protected],
[email protected]
Pages: 15
Updates: RFC 8907
I-D Tag: draft-ietf-opsawg-tacacs-tls13-24.txt
URL: https://www.rfc-editor.org/info/rfc9887
DOI: 10.17487/RFC9887
This document specifies the use of Transport Layer Security (TLS)
version 1.3 to secure the communication channel between a Terminal
Access Controller Access-Control System Plus (TACACS+) client and
server. TACACS+ is a protocol used for Authentication, Authorization,
and Accounting (AAA) in networked environments. The original TACACS+
protocol does not mandate the use of encryption or secure transport.
This specification defines a profile for using TLS 1.3 with TACACS+,
including guidance on authentication, connection establishment, and
operational considerations. The goal is to enhance the
confidentiality, integrity, and authenticity of TACACS+ traffic,
aligning the protocol with modern security best practices.
This document updates RFC 8907.
This document is a product of the Operations and Management Area Working Group
Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
memo is unlimited.
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