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 s-nail package installed.

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

Assessment Title

Rule Text

TOSS 5 must have the s-nail package installed.

Description

Discussion Text

The "s-nail" package provides the mail command required to allow sending email notifications of unauthorized configuration changes to designated personnel.

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

Objective

V-282578

Rule

SV-282578r1200714_rule

Severity

medium

Rule Version

TOSS-05-000132

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify TOSS 5 is configured to allow sending email notifications.

Note: The "s-nail" package provides the "mail" command that is used to send email messages.

Verify the "s-nail" package is installed on the system:

$ sudo dnf list --installed s-nail

s-nail.x86_64          14.9.22-6.el9

If "s-nail" package is not installed, this is a finding.

Implementation Procedure

Fix Text

The "s-nail" package can be installed using the following command:

$ sudo dnf install s-nail

STIG check 210 of 391 in the Tri-Lab Operating System Stack (TOSS) 5 STIG checklist

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