Bind9 Response Policy Zone (RPZ), does not work on clients - Ignore is my first post and It is off topic sorry

Question

On my single DNS server, bind9 (version 9.11.5-P4-5.1), I have configured a Response Policy Zone (RPZ) to block certain domains. The IP of the DNS server is 192.168.1.5

Now I am going to put the relevant parts to the configuration of the different files and commands:

On the server:

In /etc/bind/named.conf.options

acl trusted {
    localhost; # this server
    192.168.1.0/24; #my net
}

Also

// Only allows trusted client to use the service
allow-query { trusted; };

forwarders {
    The IP of the NS1 of IPS#1;
    The IP of the NS2 of IPS#1;
    The IP of the NS1 of IPS#2;
    The IP of the NS2 of IPS#2;
    8.8.8.8;
    8.8.4.4;
    1.1.1.1;
};

And also

    // For Ad-Blocking/Blacklisting/Whitelisting
    response-policy {
        zone "rpz.blacklist";
        zone "office.local" policy passthru;
        zone "1.168.192.in-addr.arpa" policy passthru;
    };

In /etc/bind/named.conf.local

  zone "rpz.blacklist" {
      typemaster;
      file "/etc/bind/zones/rpz.blacklist.db";
      allow-query { trusted; };
      allow-transfer { localhost; };
  };

And finally in /etc/bind/zones/rpz.blacklist.db

  ; BIND reverse data file for empty rfc1918 zone
  ;
  ; DO NOT EDIT THIS FILE - it is used for multiple zones.
  ; Instead, copy it, edit named.conf, and use that copy.
  ;
  $TTL 86400
  @ IN SOA localhost. root.localhost. (
  1     ; Serial
  604800; Refresh
  86400; Retry
  2419200; expire
  86400); Negative Cache TTL
  ;

  @ IN NS localhost.

  ;.:#====================#:.
  ; Blacklist Domains
  ;.:#====================#:.

  ads2000.hw.net IN A 127.0.0.1

There are more domains but I leave one only for the example.

The commands [named-checkconf] and [named-checkconf "rpz.blacklist" /etc/bind/zones/rpz.blacklist.db] return OK and the service starts successfully

Now if I ping ads2000.hw.net from the same server it works fine

  ping -c 5 ads2000.hw.net
  PING ads2000.hw.net (127.0.0.1) 56(84) bytes of data.
  64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.037 ms
  64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.037 ms
  64 bytes from localhost (127.0.0.1): icmp_seq=3 ttl=64 time=0.037 ms
  64 bytes from localhost (127.0.0.1): icmp_seq=4 ttl=64 time=0.201 ms
  64 bytes from localhost (127.0.0.1): icmp_seq=5 ttl=64 time=0.034 ms

  --- ads2000.hw.net ping statistics ---
  5 packets transmitted, 5 received, 0% packet loss, time 105ms
  rtt min/avg/max/mdev = 0.034/0.069/0.201/0.066ms

Now if I do it from a linux client, it does not :

  ping -c 5 ads2000.hw.net
  PING ads2000.hw.net (65.8.181.28) 56(84) bytes of data.
    64 bytes from server-65-8-181-28.mia3.r.cloudfront.net (65.8.181.28): icmp_seq=1 ttl=246 time=131 ms
    64 bytes from server-65-8-181-28.mia3.r.cloudfront.net (65.8.181.28): icmp_seq=2 ttl=246 time=131 ms
    64 bytes from server-65-8-181-28.mia3.r.cloudfront.net (65.8.181.28): icmp_seq=3 ttl=246 time=131 ms
    64 bytes from server-65-8-181-28.mia3.r.cloudfront.net (65.8.181.28): icmp_seq=4 ttl=246 time=131 ms
    64 bytes from server-65-8-181-28.mia3.r.cloudfront.net (65.8.181.28): icmp_seq=5 ttl=246 time=131 ms

This is my dns settings on that computer

  cat /etc/resolv.conf
  ## Generated by NetworkManager
  domain office.local
  search office.local
  nameserver 192.168.1.5
  nameserver 1.1.1.1
  nameserver 8.8.8.8

Now if I do it from a windows client, it does not work either:

  ping ads2000.hw.net
  Ping ads2000.hw.net [65.8.181.28] with 32 bytes of data:
  Response from 65.8.181.28: bytes=32 time=131ms TTL=246
  Response from 65.8.181.28: bytes=32 time=131ms TTL=246
  Response from 65.8.181.28: bytes=32 time=131ms TTL=246
  Response from 65.8.181.28: bytes=32 time=131ms TTL=246
  Ping statistics for 65.8.181.28:
      Packets: sent = 4, received = 4, lost = 0
(0% lost),
  Approximate round trip times in milliseconds:
Minimum = 131ms, Maximum = 131ms, Average = 131ms

This is my dns settings on that computer

   Ethernet Ethernet Adapter:
      Specific DNS suffix for the connection. . : office.local
      DNS servers. . . . . . . . . . . . . . : 192.168.1.5
                                          1.1.1.1
                                          8.8.8.8

If I remove the servers "1.1.1.1" and "8.8.8.8" from the clients, it works but from them I lose Internet (I can not resolve names from internet domains from the clients.)

What am I doing wrong?

I thank you in advance for your help.

PS: Sorry for my bad English

Answer 1

Try :

sudo systemd-resolve --flush-caches
sudo systemctl restart systemd-resolved

Incase it didn't help, Please add the input return from -

dig hw.net