OL 9 must configure a DNS processing mode set be Network Manager.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-271860 | SRG-OS-000480-GPOS-00227 | OL09-00-006002 | SV-271860r1092292_rule | 2025-05-08 | 1 |
| Description |
|---|
| To ensure that DNS resolver settings are respected, a DNS mode in Network Manager must be configured. |
| ℹ️ Check |
|---|
| Verify that OL 9 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. |
| ✔️ Fix |
|---|
| Configure NetworkManager in OL 9 to use a DNS mode. In "/etc/NetworkManager/NetworkManager.conf" add the following line in the "[main]" section: dns = none NetworkManager must be reloaded for the change to take effect. $ sudo systemctl reload NetworkManager |