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← Back to SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

V-22319

CAT II (Medium)

The /etc/resolv.conf file must be owned by root.

Rule ID

SV-44972r1_rule

STIG

SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Version

V1R12

CCIs

CCI-000225

Discussion

The resolv.conf (or equivalent) file configures the system's DNS resolver. DNS is used to resolve host names to IP addresses. If DNS configuration is modified maliciously, host name resolution may fail or return incorrect information. DNS may be used by a variety of system security functions such as time synchronization, centralized authentication, and remote system logging.

Check Content

Verify the /etc/resolv.conf file is owned by root.
# ls -l /etc/resolv.conf
If the file is not owned by root, this is a finding.

Fix Text

Change the owner of the /etc/resolv.conf file to root.
# chown root /etc/resolv.conf