The AIX DHCP client must not send dynamic DNS updates.
An XCCDF Rule
Description
<VulnDiscussion>Dynamic DNS updates transmit unencrypted information about a system including its name and address and should not be used unless needed.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-215427r991589_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure the system's DHCP client to not send dynamic DNS updates.
Remove or comment-out "updateDNS" lines from the "/etc/dhcpcd.ini" and "/etc/dhcpc.opt" files.