RHEL 10 must not have the unbound package installed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-280948 | RHEL-10-200060 | SV-280948r1197218_rule | CCI-000381 | medium |
| Description | ||||
| If the system is not a Domain Name Server (DNS), it should not have a DNS server package installed to decrease the attack surface of the system. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 10 Security Technical Implementation Guide | 2026-03-11 | |||
Details
Check Text (C-280948r1197218_chk)
Verify RHEL 10 does not have a DNS package installed with the following command:
$ sudo dnf list --installed unbound
Error: No matching Packages to list
If the "unbound" package is installed, and the information system security officer lacks a documented requirement for a DNS, this is a finding.
Fix Text (F-85414r1165198_fix)
Configure RHEL 10 to not have the unbound package installed with the following command:
$ sudo dnf -y remove unbound