STIGQter STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 must configure a DNS processing mode set in Network Manager.

DISA Rule

SV-282679r1201334_rule

Vulnerability Number

V-282679

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

TOSS-05-000205

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure NetworkManager in TOSS 5 to use a DNS mode.

In "/etc/NetworkManager/NetworkManager.conf" add the following line in the "[main]" section:

dns = none

Reload NetworkManager for the change to take effect.

$ sudo systemctl reload NetworkManager

Check Contents

Verify TOSS 5 has a DNS mode configured in Network Manager.

$ NetworkManager --print-config
[main]
dns=none

If the dns key under main does not exist or is not set to "none" or "default", this is a finding.

Vulnerability Number

V-282679

Documentable

False

Rule Version

TOSS-05-000205

Severity Override Guidance

Verify TOSS 5 has a DNS mode configured in Network Manager.

$ NetworkManager --print-config
[main]
dns=none

If the dns key under main does not exist or is not set to "none" or "default", this is a finding.

Check Content Reference

M

Target Key

5738