It disables dnsmasq from handling DNS queries as far as I know. I haven’t tested DHCP but by the changes I made, NxFilter handles DNS for the system. It looks as though dnsmasq is still handling DHCP from the output of netstat but again, I’ve not tested it:
Edited for completeness:
[root@cent7 httpd]# netstat -tunap | grep ‘dnsmasq|java’
tcp 0 0 127.0.0.1:19001 0.0.0.0:* LISTEN 1488/java
tcp 0 0 0.0.0.0:19002 0.0.0.0:* LISTEN 1488/java
tcp 0 0 0.0.0.0:19003 0.0.0.0:* LISTEN 1488/java
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN 1488/java
tcp 0 0 0.0.0.0:81 0.0.0.0:* LISTEN 1488/java
tcp6 0 0 127.0.0.1:58009 :::* LISTEN 1166/java
tcp6 0 0 127.0.0.1:58080 :::* LISTEN 1166/java
tcp6 0 0 127.0.0.1:58005 :::* LISTEN 1166/java
tcp6 0 0 127.0.0.1:53736 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53754 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53746 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53740 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53742 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53738 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53748 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53752 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53744 127.0.0.1:5432 ESTABLISHED 1166/java
tcp6 0 0 127.0.0.1:53750 127.0.0.1:5432 ESTABLISHED 1166/java
udp 0 0 0.0.0.0:33774 0.0.0.0:* 1488/java
udp 0 0 0.0.0.0:34693 0.0.0.0:* 1488/java
udp 0 0 0.0.0.0:53 0.0.0.0:* 1488/java
udp 0 0 0.0.0.0:69 0.0.0.0:* 1168/dnsmasq
udp6 0 0 :::69 :::* 1168/dnsmasq