DNS Resolver Status, no data?

johnpoz

Here is from cmd line

$0_1552504214462_infracachedump.png$

All the web gui does it take the output of that and present it..

No unbound is not going to wipe that data on any sort of schedule.. This the data it uses to know which NS are best to talk to, etc.

Take a look to see how many actual queries have happened since unbound restarted

total.num.queries=287
total.num.queries_ip_ratelimited=0
total.num.cachehits=218
total.num.cachemiss=69

Use
unbound-control -c /var/unbound/unbound.conf stats_noreset

Look through for total, etc. How many queries happened, etc. since unbound restarted. If 0 then no nothing going to be in the stats for the infa.

KOM

You have something wrong if your not seeing data and actually using the resolver... After it does one query.. It will store that info.

I think pfSense might be doing something wrong. I am definitely using Resolver. I can resolve via Diagnostics - DNS Lookup. The stats page seems to be randomly full or empty.

Resolver log shows:

Jan 23 21:36:20 	unbound 	78590:0 	info: start of service (unbound 1.8.1).
Jan 23 21:36:20 	unbound 	78590:0 	notice: init module 0: iterator

and those are the latest updates.

Interestingly, a manual nslookup shows the answering DNS server to be one of my AD DCs. Back when I first installed pfSense (2.1.x), I had it configured for DNS Forwarder, and I put my AD DNS into General Settings - DNS Servers. Later on, I disabled Forwarder and ran Resolver instead. Resolver is definitely NOT in forwarder mode. And yet it's still sending request to my DC.

johnpoz

If your an AD shop your clients should directly be asking your AD dns anyway... Have it forward to pfsense if you want.. But might as well just have your AD resolve, etc.

Do the command I asked before - lets see how many queries have been asked of unbound.

KOM

unbound-control -c /var/unbound/unbound.conf dump_infra

returns blank, and my stats page is back to No Data. So bizarre.

johnpoz

and lets see this

[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf stats_noreset | grep total.num
total.num.queries=336
total.num.queries_ip_ratelimited=0
total.num.cachehits=251
total.num.cachemiss=85
total.num.prefetch=0
total.num.zero_ttl=0
total.num.recursivereplies=85
[2.4.4-RELEASE][admin@sg4860.local.lan]/root:

How many queries so mine went from 200 something to 336 in the couple of minutes.

KOM

total.num.queries=7233
total.num.queries_ip_ratelimited=0
total.num.cachehits=6981
total.num.cachemiss=252
total.num.prefetch=4892
total.num.zero_ttl=4748
total.num.recursivereplies=252

and Stats is still blank.

provels

@kom No idea if this means anything, but I had a 10 minute time drift between my VM and Real Life. Looks like NTP to pool.ntp.org wasn't quite working for me. Corrected and now seems to be working. Coincidence?

johnpoz

Lets see whats in the infra cache.. ask unbound who it would ask for specific domain... For example just did microsoft.

[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf lookup www.microsoft.com
The following name servers are used for lookup of www.microsoft.com.
;rrset 84738 13 0 2 0
com.    84738   IN      NS      d.gtld-servers.net.
com.    84738   IN      NS      c.gtld-servers.net.
com.    84738   IN      NS      a.gtld-servers.net.
com.    84738   IN      NS      k.gtld-servers.net.
com.    84738   IN      NS      e.gtld-servers.net.
com.    84738   IN      NS      m.gtld-servers.net.
com.    84738   IN      NS      i.gtld-servers.net.
com.    84738   IN      NS      b.gtld-servers.net.
com.    84738   IN      NS      f.gtld-servers.net.
com.    84738   IN      NS      l.gtld-servers.net.
com.    84738   IN      NS      j.gtld-servers.net.
com.    84738   IN      NS      h.gtld-servers.net.
com.    84738   IN      NS      g.gtld-servers.net.
;rrset 84738 1 1 11 5
com.    84738   IN      DS      30909 8 2 E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CFC41A5766
com.    84738   IN      RRSIG   DS 8 1 86400 20190326170000 20190313160000 16749 . OMtKk6RTDzvphZVSK+udXiB77g87GGNMnV5R/8cczdZapo1xVuawqufRPh/u8p3zJIvdGgjOPt7YCSXlrwE0jDWT8R4qtsGlrClDIy3fy39cN1ORFZGhpV7dmyAWpi7pFnpWaI0X5tMoiUu4spmCSS08DzqedVIhcAxiDFLtso05Upi2RpIMaMD7eU4YWsCHpkzxmmBYPNbyWb0ryxEpyzXgrb40Dq9hlUAZna6SUsQ81rsFMxH6G7GCuFhMvreZOX6D77ML0hgLhbbEnNlS+7EjyghZtBy+I3JTzI0onWgbaIpJbH+LbFI9XmcRUFDsV5FzGRkvi+a9U+uEuKuhlg== ;{id = 16749}
;rrset 84738 1 0 1 0
g.gtld-servers.net.     171138  IN      A       192.42.93.30
;rrset 84738 1 0 1 0
g.gtld-servers.net.     171138  IN      AAAA    2001:503:eea3::30
;rrset 84738 1 0 1 0
h.gtld-servers.net.     171138  IN      A       192.54.112.30
;rrset 84738 1 0 1 0
h.gtld-servers.net.     171138  IN      AAAA    2001:502:8cc::30
;rrset 84738 1 0 1 0
j.gtld-servers.net.     171138  IN      A       192.48.79.30
;rrset 84738 1 0 1 0
j.gtld-servers.net.     171138  IN      AAAA    2001:502:7094::30
;rrset 84738 1 0 1 0
l.gtld-servers.net.     171138  IN      A       192.41.162.30
;rrset 84738 1 0 1 0
l.gtld-servers.net.     171138  IN      AAAA    2001:500:d937::30
;rrset 84738 1 0 1 0
f.gtld-servers.net.     171138  IN      A       192.35.51.30
;rrset 84738 1 0 1 0
f.gtld-servers.net.     171138  IN      AAAA    2001:503:d414::30
;rrset 84738 1 0 1 0
b.gtld-servers.net.     171138  IN      A       192.33.14.30
;rrset 84738 1 0 1 0
b.gtld-servers.net.     171138  IN      AAAA    2001:503:231d::2:30
;rrset 84738 1 0 1 0
i.gtld-servers.net.     171138  IN      A       192.43.172.30
;rrset 84738 1 0 1 0
i.gtld-servers.net.     171138  IN      AAAA    2001:503:39c1::30
;rrset 84738 1 0 1 0
m.gtld-servers.net.     171138  IN      A       192.55.83.30
;rrset 84738 1 0 1 0
m.gtld-servers.net.     171138  IN      AAAA    2001:501:b1f9::30
;rrset 84738 1 0 1 0
e.gtld-servers.net.     171138  IN      A       192.12.94.30
;rrset 84738 1 0 1 0
e.gtld-servers.net.     171138  IN      AAAA    2001:502:1ca1::30
;rrset 84738 1 0 1 0
k.gtld-servers.net.     171138  IN      A       192.52.178.30
;rrset 84738 1 0 1 0
k.gtld-servers.net.     171138  IN      AAAA    2001:503:d2d::30
;rrset 84738 1 0 1 0
a.gtld-servers.net.     171138  IN      A       192.5.6.30
;rrset 84738 1 0 1 0
a.gtld-servers.net.     171138  IN      AAAA    2001:503:a83e::2:30
;rrset 84738 1 0 1 0
c.gtld-servers.net.     171138  IN      A       192.26.92.30
;rrset 84738 1 0 1 0
c.gtld-servers.net.     171138  IN      AAAA    2001:503:83eb::30
;rrset 84738 1 0 1 0
d.gtld-servers.net.     171138  IN      A       192.31.80.30
;rrset 84738 1 0 1 0
d.gtld-servers.net.     171138  IN      AAAA    2001:500:856e::30
Delegation with 13 names, of which 0 can be examined to query further addresses.
It provides 26 IP addresses.
2001:500:856e::30       rto 321 msec, ttl 256, ping 13 var 77 rtt 321, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.31.80.30            rto 355 msec, ttl 652, ping 7 var 87 rtt 355, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:503:83eb::30       not in infra cache.
192.26.92.30            rto 330 msec, ttl 298, ping 14 var 79 rtt 330, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:503:a83e::2:30     rto 330 msec, ttl 716, ping 14 var 79 rtt 330, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.5.6.30              rto 651 msec, ttl 267, ping 55 var 149 rtt 651, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:503:d2d::30        not in infra cache.
192.52.178.30           rto 347 msec, ttl 143, ping 7 var 85 rtt 347, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:502:1ca1::30       not in infra cache.
192.12.94.30            rto 315 msec, ttl 298, ping 3 var 78 rtt 315, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:501:b1f9::30       rto 285 msec, ttl 267, ping 17 var 67 rtt 285, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.55.83.30            not in infra cache.
2001:503:39c1::30       not in infra cache.
192.43.172.30           rto 301 msec, ttl 878, ping 1 var 75 rtt 301, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:503:231d::2:30     rto 473 msec, ttl 652, ping 21 var 113 rtt 473, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.33.14.30            not in infra cache.
2001:503:d414::30       not in infra cache.
192.35.51.30            not in infra cache.
2001:500:d937::30       not in infra cache.
192.41.162.30           rto 342 msec, ttl 603, ping 6 var 84 rtt 342, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:502:7094::30       rto 361 msec, ttl 268, ping 17 var 86 rtt 361, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.48.79.30            rto 297 msec, ttl 595, ping 1 var 74 rtt 297, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:502:8cc::30        rto 374 msec, ttl 268, ping 10 var 91 rtt 374, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.54.112.30           rto 302 msec, ttl 716, ping 2 var 75 rtt 302, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:503:eea3::30       rto 325 msec, ttl 255, ping 13 var 78 rtt 325, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.42.93.30            rto 333 msec, ttl 652, ping 5 var 82 rtt 333, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
[2.4.4-RELEASE][admin@sg4860.local.lan]/root:

KOM

@johnpoz My output is similar to yours.

I suspect I've managed to confuse things by having DNS listed in General Setup - DNS Servers even though I'm using Resolver. There is no reason why it should return results from my AD DCs. The General Setup servers should be completely ignored when running with Resolver.

The time on my pfSense VM is correct.

johnpoz

ignored by who? Sure resolver will ignore them, but not pfsense.

So it shows such entries

Delegation with 13 names, of which 0 can be examined to query further addresses.
It provides 26 IP addresses.
2001:500:856e::30       rto 321 msec, ttl 256, ping 13 var 77 rtt 321, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.31.80.30            rto 355 msec, ttl 652, ping 7 var 87 rtt 355, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:503:83eb::30       not in infra cache.
192.26.92.30            rto 330 msec, ttl 298, ping 14 var 79 rtt 330, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
2001:503:a83e::2:30     rto 330 msec, ttl 716, ping 14 var 79 rtt 330, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
192.5.6.30              rto 651 msec, ttl 267, ping 55 var 149 rtt 651, tA 0, tAAAA 0, tother 0, EDNS 0 probed.

That have data in them... Then your infra cache is there and being used... Why your not seeing the info your gui is cosmetic, and or browser problem, etc..

Your on 2.4.4p2?

KOM

Delegation with 13 names, of which 0 can be examined to query further addresses.
It provides 26 IP addresses.
2001:501:b1f9::30       not in infra cache.
192.55.83.30            expired, rto 43388736 msec, tA 0 tAAAA 0 tother 0.
2001:503:d414::30       not in infra cache.
192.35.51.30            expired, rto 43388736 msec, tA 0 tAAAA 0 tother 0.
2001:502:8cc::30        not in infra cache.
192.54.112.30           expired, rto 43388736 msec, tA 0 tAAAA 0 tother 0.
2001:503:39c1::30       not in infra cache.
192.43.172.30           expired, rto 43388736 msec, tA 0 tAAAA 0 tother 0.
2001:502:1ca1::30       not in infra cache.

You learn something new every day. I thought that those DNS were ignored unless Forwarder was in use, or Resolver in forward mode. The info even says that. It doesn't say anything about pfSense using it internally for whatever reason.

Yes, latest version.

johnpoz

@kom said in DNS Resolver Status, no data?:

192.55.83.30 expired, rto 43388736 msec, tA 0 tAAAA 0 tother 0.

Dude that is expired... RTO was it could NEVER talk to it.. All of yours is like that... Looks to me your resolver Not WORKING AT ALL!!

Do the command for some domain you talk to all the time from a client on your network asking pfsense for dns.

Look in your system widget what does it show for dns?

If you have more than loopback there - then yes its possible pfsense could ask any of those NS for dns.

KOM

I had turned off the DNS Servers dealie long ago to save on vertical space in the browser. It's showing me that my AD DCs are my DNS.

At this point, I fully admit that I have no idea what's going on or why. So even when you are using Resolver, if you include any servers in General Settings then it's going to silently forward instead?

johnpoz

NO!! Pfsense (itself) will use what you have listed in the general setup... But if a client asks resolver on pfsense running listening on port 53, then that will either resolve or forward.

But if you do not have loopback listed - then when pfsense needs to check if update, or look for packages, etc. its going to ask those name servers. When you go to the dns lookup menu... its going to ask what is set for in the general tab or gets from dhcp on your wan, etc.

Out of the box pfsense should only ask itself.. which should be the resolver in resolver mode, with dnssec enabled.

Your settings show that your not even doing dnssec.. And from what you showed... Id doubt your resolver can even talk to atleast not the NS for MS, etc.

From a client on your network do a query to pfsense lan IP... Do you get an answer?

Here is 2 example of specifically asking pfsense (resolver) for query of a fqdn

On your client when you do nslookup it comes back with your pfsense as the NS, see how mine says sg4860.local.lan - 192.168.9.253.. That is pfsense lan IP.

See when do a dig, I specifically called out my pfsense lan IP and it answered.

KOM

These DNS settings were mostly inherited form my original 2.1.x installation 4+ years ago. I have no idea what the current default settings are nowadays.

And yes, I can run nslookup, point it to pfsense and resolver some unknown host:

Replaced real hosts/domains with ???

PS C:\Users\KOM> nslookup
Default Server:  ???.???.local
Address:  10.10.0.1

> server 10.10.4.1
Default Server:  wpad.???.???.local
Address:  10.10.4.1

> www.boogers.com
Server:  wpad.???.???.local
Address:  10.10.4.1

Non-authoritative answer:
Name:    www.boogers.com
Address:  91.195.240.126

johnpoz

So you sure dns forwarder is not running and you have a race condition..

So your pfsense is called wpad?

So unbound is specifically bound to 53?

[2.4.4-RELEASE][admin@sg4860.local.lan]/root: sockstat | grep :53    
unbound  unbound    33324 3  udp4   192.168.9.253:53      *:*
unbound  unbound    33324 4  tcp4   192.168.9.253:53      *:*
unbound  unbound    33324 5  udp4   192.168.2.253:53      *:*
unbound  unbound    33324 6  tcp4   192.168.2.253:53      *:*
unbound  unbound    33324 7  udp4   192.168.4.253:53      *:*
unbound  unbound    33324 8  tcp4   192.168.4.253:53      *:*
unbound  unbound    33324 9  udp4   192.168.6.253:53      *:*
unbound  unbound    33324 10 tcp4   192.168.6.253:53      *:*
unbound  unbound    33324 11 udp4   192.168.7.253:53      *:*
unbound  unbound    33324 15 tcp4   192.168.7.253:53      *:*
unbound  unbound    33324 16 udp4   192.168.3.253:53      *:*
unbound  unbound    33324 17 tcp4   192.168.3.253:53      *:*
unbound  unbound    33324 18 udp6   2001:470:snipped::253:53 *:*
unbound  unbound    33324 19 tcp6   2001:470:snipped::253:53 *:*
unbound  unbound    33324 20 udp4   127.0.0.1:53          *:*
unbound  unbound    33324 21 tcp4   127.0.0.1:53          *:*
unbound  unbound    33324 22 udp6   ::1:53                *:*
unbound  unbound    33324 23 tcp6   ::1:53                *:*

And now that you asked it for boogers.com

What is the output of the lookup command www.boogers.com

You should see valid info in the infra cache for what ns it talked to look that domain. if they have RTO a bajillion... and say expired... Then it did not talk to them.

Here is mine just asked for boogers as well

[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf lookup www.boogers.com
The following name servers are used for lookup of www.boogers.com.
;rrset 86309 2 0 2 0
boogers.com.    172709  IN      NS      ns1.sedoparking.com.
boogers.com.    172709  IN      NS      ns2.sedoparking.com.
;rrset 3509 1 0 8 0
ns2.sedoparking.com.    3509    IN      A       91.195.240.8
;rrset 3509 1 0 8 0
ns1.sedoparking.com.    3509    IN      A       91.195.241.8
Delegation with 2 names, of which 2 can be examined to query further addresses.
It provides 2 IP addresses.
91.195.241.8            not in infra cache.
91.195.240.8            not in infra cache.
[2.4.4-RELEASE][admin@sg4860.local.lan]/root:

KOM

So your pfsense is called wpad?

It's called pfsense.???.local, wpad.???.local and wpad.???.???.local.

[2.4.4-RELEASE][admin@pfsense.???.local]/root: sockstat | grep :53
squid    squid      1410  35 tcp4   WAN_IP:53787  40.101.128.194:443
squid    squid      1410  62 tcp4   10.10.4.1:3128        10.10.10.166:53898
squid    squid      1410  110 tcp4  WAN_IP:53670  52.96.50.130:443
squid    squid      1410  148 tcp4  10.10.4.1:3128        10.10.10.141:53913
squid    squid      1410  210 tcp4  10.10.4.1:3128        10.10.10.21:53204
squid    squid      1410  223 tcp4  WAN_IP:53727  40.101.128.194:443
squid    squid      1410  225 tcp4  10.10.4.1:3128        10.10.10.101:53794
unbound  unbound    78590 4  udp4   *:53                  *:*
unbound  unbound    78590 5  tcp4   *:53                  *:*
unbound  unbound    78590 6  udp4   *:53                  *:*
unbound  unbound    78590 7  tcp4   *:53                  *:*

What is the output of the lookup command www.boogers.com

[2.4.4-RELEASE][admin@pfsense.???.local]/root: unbound-control -c /var/unbound/unbound.conf lookup www.boogers.com
The following name servers are used for lookup of www.boogers.com.
;rrset 85356 2 0 2 0
boogers.com.    171756  IN      NS      ns1.sedoparking.com.
boogers.com.    171756  IN      NS      ns2.sedoparking.com.
;rrset 85356 1 0 1 0
ns2.sedoparking.com.    171756  IN      A       209.200.165.74
;rrset 85356 1 0 1 0
ns1.sedoparking.com.    171756  IN      A       209.200.164.69
Delegation with 2 names, of which 2 can be examined to query further addresses.
It provides 2 IP addresses.
209.200.164.69          expired, rto 48821432 msec, tA 0 tAAAA 0 tother 0.
209.200.165.74          expired, rto 48821432 msec, tA 0 tAAAA 0 tother 0.

johnpoz

@kom said in DNS Resolver Status, no data?:

squid squid 1410 35 tcp4 WAN_IP:53787 40.101.128.194:443
squid squid 1410 62 tcp4 10.10.4.1:3128 10.10.10.166:53898
squid squid 1410 110 tcp4 WAN_IP:53670 52.96.50.130:443
squid squid 1410 148 tcp4 10.10.4.1:3128 10.10.10.141:53913
squid squid 1410 210 tcp4 10.10.4.1:3128 10.10.10.21:53204
squid squid 1410 223 tcp4 WAN_IP:53727 40.101.128.194:443
squid squid 1410 225 tcp4 10.10.4.1:3128 10.10.10.101:53794

Dude your running squid.. So all your queries are done by the proxy.. And proxy would use what?? Prob what is in general setup of psfense.

This is broken!!
209.200.164.69 expired, rto 48821432 msec, tA 0 tAAAA 0 tother 0.
209.200.165.74 expired, rto 48821432 msec, tA 0 tAAAA 0 tother 0.

Flush your infra cache, then do some queries direct to pfsense... Then look in your infra_cache you can flush with.
flush_infra all

Do quite a few queries for different things..

You just flushed the cache, so it can answer stuff from its cache... So you need to ask for stuff that is not in the cache

[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf flush_infra all
ok
[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf dump_infra
[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf dump_infra
[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf dump_infra
[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf dump_infra
[2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf dump_infra
2001:503:231d::2:30 net. ttl 892 ping 21 var 112 rtt 469 rto 469 tA 0 tAAAA 0 tother 0 ednsknown 1 edns 0 delay 0 lame dnssec 0 rec 0 A 0 other 0
2001:503:d414::30 com. ttl 896 ping 7 var 85 rtt 347 rto 347 tA 0 tAAAA 0 tother 0 ednsknown 1 edns 0 delay 0 lame dnssec 0 rec 0 A 0 other 0
95.101.36.128 akadns.net. ttl 883 ping 1 var 73 rtt 293 rto 293 tA 0 tAAAA 0 tother 0 ednsknown 1 edns 0 delay 0 lame dnssec 0 rec 0 A 0 other 0
84.53.139.129 akadns.net. ttl 883 ping 1 var 74 rtt 297 rto 297 tA 0 tAAAA 0 tother 0 ednsknown 1 edns 0 delay 0 lame dnssec 0 rec 0 A 0 other 0
95.100.173.129 akadns.net. ttl 883 ping 4 var 80 rtt 324 rto 324 tA 0 tAAAA 0 tother 0 ednsknown 1 edns 0 delay 0 lame dnssec 0 rec 0 A 0 other 0
95.100.174.65 lastpass.com. ttl 883 ping 4 var 79 rtt 320 rto 320 tA 0 tAAAA 0 tother 0 ednsknown 1 edns 0 delay 0 lame dnssec 0 rec 0 A 0 other 0

You see it took me bit for stuff started showing up.

KOM

Why would squid be doing the lookups? It's not listening on 53. And I'm not going through the proxy personally (explicit mode, not transparent) so squid is out of the loop.

johnpoz

Why would you be running a proxy if not using it? Makes ZERO sense to run a proxy if not having clients use it.

When browser asks proxy for www.whatever.com - proxy is what looks up www.whatever.com no the client wanting to go to www.whatever.com

Your current infra has bunch of shit blocked with those expired and RTO... Dump its cache, then do some queries direct to pfsense and then look at the infra cache..

We are trying to get some info that unbound is actually working!

You sure you didn't put in a dns redirect and sending your dns queries to pfsense to your AD?