GEN007850 - The DHCP client must not send dynamic DNS updates - 'updateDNS exists in /etc/dhcpc.opt'

Information

Dynamic DNS updates transmit unencrypted information about a system including its name and address and should not be used unless needed.

Solution

Configure the system's DHCP client to not send dynamic DNS updates.
Remove / comment updateDNS lines from the /etc/dhcpcd.ini and /etc/dhcpc.opt files.

See Also

http://iasecontent.disa.mil/stigs/zip/U_STIG_Library_2015_07.zip