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Force internal DNS
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| { | |
| "service": { | |
| "nat": { | |
| "rule": { | |
| "1": { | |
| "description": "Redirect DNS requests", | |
| "destination": { | |
| "port": "53" | |
| }, | |
| "inbound-interface": "eth1", | |
| "inside-address": { | |
| "address": "192.168.1.2-192.168.1.3", | |
| "port": "53" | |
| }, | |
| "source": { | |
| "address": "!192.168.1.2-192.168.1.3" | |
| }, | |
| "log": "disable", | |
| "protocol": "tcp_udp", | |
| "type": "destination" | |
| }, | |
| "6000": { | |
| "description": "MASQ DNS requests to LAN", | |
| "destination": { | |
| "address": "192.168.1.2-192.168.1.3", | |
| "port": "53" | |
| }, | |
| "log": "disable", | |
| "outbound-interface": "eth1", | |
| "protocol": "tcp_udp", | |
| "type": "masquerade" | |
| } | |
| } | |
| } | |
| } | |
| } |
Sources
https://www.reddit.com/r/pihole/comments/ahcb4n/i_made_a_usg_nat_rule_to_force_all_lan_dns/
https://github.com/stevejenkins/unifi-linux-utils/tree/master/config.gateway.json
https://github.com/stevejenkins/unifi-linux-utils/blob/master/config.gateway.json/force-dns-to-dual-piholes.json
Make sure the USG's WAN DNS server is set to an upstream DNS service like 1.1.1.1 and 1.0.0.1 for example. Otherwise a loop might occur.
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USG pro usually uses eth0. The regular USG uses eth1.