Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide

The Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide (V1 R2) has 391 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V1 · R2

CurrentPublished Wed Sep 30 2026

TOSS 5 must have the tmux package installed.

Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide

Assessment Title

Rule Text

TOSS 5 must have the tmux package installed.

Description

Discussion Text

"tmux" is a terminal multiplexer that enables a number of terminals to be created, accessed, and controlled from a single screen. Red Hat endorses "tmux" as the recommended session controlling package.

Satisfies: SRG-OS-000028-GPOS-00009, SRG-OS-000030-GPOS-00011

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-282376

Rule

SV-282376r1200108_rule

Severity

medium

Rule Version

TOSS-05-000311

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify TOSS 5 has the "tmux" package installed using the following command:

$ sudo dnf list --installed tmux

Example output:

tmux.x86_64          3.2a-4.el9

If the "tmux" package is not installed, this is a finding.

Implementation Procedure

Fix Text

Install the "tmux" package using the following command:

$ sudo dnf install tmux

STIG check 24 of 391 in the Tri-Lab Operating System Stack (TOSS) 5 STIG checklist

← Previous · V-282375TOSS 5 must prevent a user from overriding the screensaver lock-enabled setting for the graphical user interface.Next · V-282377 →TOSS 5 must automatically lock graphical user sessions after 10 minutes of inactivity.