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The netconsole service must be disabled unless required.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-50883 | OL6-00-000289 | SV-65089r1_rule | Low |
| Description |
|---|
| The "netconsole" service is not necessary unless there is a need to debug kernel panics, which is not common. |
| STIG | Date |
|---|---|
| Oracle Linux 6 Security Technical Implementation Guide | 2018-11-28 |
Details
| Check Text ( C-53355r1_chk ) |
|---|
| To check that the "netconsole" service is disabled in system boot configuration, run the following command: # chkconfig "netconsole" --list Output should indicate the "netconsole" service has either not been installed, or has been disabled at all runlevels, as shown in the example below: # chkconfig "netconsole" --list "netconsole" 0:off 1:off 2:off 3:off 4:off 5:off 6:off Run the following command to verify "netconsole" is disabled through current runtime configuration: # service netconsole status If the service is disabled the command will return the following output: netconsole is stopped If the service is running, this is a finding. |
| Fix Text (F-55677r1_fix) |
|---|
| The "netconsole" service is responsible for loading the netconsole kernel module, which logs kernel printk messages over UDP to a syslog server. This allows debugging of problems where disk logging fails and serial consoles are impractical. The "netconsole" service can be disabled with the following commands: # chkconfig netconsole off # service netconsole stop |