For systems using DNS resolution, at least two name servers must be configured.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22331	GEN001375 M6	SV-38766r1_rule	ECSC-1	Low

Description
To provide availability for name resolution services, multiple redundant name servers are mandated. A failure in name resolution could lead to the failure of security functions requiring name resolution, which may include time synchronization, centralized authentication, and remote system logging.

STIG	Date
MAC OSX 10.6 Workstation Security Technical Implementation Guide Draft	2013-01-10

Details

Check Text ( C-37828r1_chk )
Open a terminal session and use the following command to verify the DNS name servers. grep nameserver /etc/resolv.conf If less than two lines are returned that are not commented out, this is a finding.

Fix Text (F-33086r1_fix)
Open a terminal session and use the following command to edit the /etc/resolv.conf and add additional "nameserver" lines until at least two are present. sudo pico /etc/resolv.conf