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The ndpd-host daemon must be disabled on AIX.


Overview

Finding ID Version Rule ID IA Controls Severity
V-91363 AIX7-00-003062 SV-101461r1_rule Medium
Description
This is the Neighbor Discovery Protocol (NDP) daemon, required in IPv6. The ndpd-host is the NDP daemon for the server. Unless the server utilizes IPv6, this is not required and should be disabled to prevent attacks.
STIG Date
IBM AIX 7.x Security Technical Implementation Guide 2020-02-24

Details

Check Text ( C-90517r1_chk )
From the command prompt, execute the following command:
# grep "^start[[:blank:]]/usr/sbin/ndpd-host" /etc/rc.tcpip

If there is any output from the command, this is a finding.
Fix Text (F-97561r1_fix)
In "/etc/rc.tcpip", comment out the "ndpd-host" entry by running command:
# chrctcp -d ndpd-host