The netconsole service must be disabled unless required.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-209022	OL6-00-000289	SV-209022r793743_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	2021-12-03

Details

Check Text ( C-9275r357851_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-9275r357852_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