NextDNS DNS Servers Suddenly Stopped Working

Allan_Parsons
1 mth ago
2replies

Running NextDNS on my Unifi Dream Machine (UDM). Everything was working fine, then DNS stopped working.

I'm no longer able to resolve DNS using my issued DNS servers: 45.90.28.34 and 45.90.30.34. When I revert back to cloudflare, everything works just fine.

Tried uninstalling NextDNS and re-installing DNS. Doesn't work.

Any help would be appreciated:

root@HIDDEN-UDM:~# ping www.google.com
PING www.google.com (142.250.72.132) 56(84) bytes of data.
64 bytes from lax17s49-in-f4.1e100.net (142.250.72.132): icmp_seq=1 ttl=59 time=4.50 ms
64 bytes from lax17s49-in-f4.1e100.net (142.250.72.132): icmp_seq=2 ttl=59 time=5.06 ms
^C
--- www.google.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 4.503/4.780/5.058/0.277 ms
root@HIDDEN-UDM:~# dig www.google.com

; <<>> DiG 9.16.44-Debian <<>> www.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10732
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;www.google.com. IN A

;; ANSWER SECTION:
www.google.com. 210 IN A 142.250.72.132

;; Query time: 0 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Sat Mar 09 10:53:21 PST 2024
;; MSG SIZE  rcvd: 59

root@HIDDEN-UDM:~# cat /etc/resolv.conf
# Generated automatically by ubios-udapi-server
# nameserver 127.0.0.1
# nameserver 45.90.28.34
# nameserver 45.90.30.34
nameserver 1.1.1.1
root@HIDDEN-UDM:~# sh -c 'sh -c "$(curl -sL https://nextdns.io/install)"'^C
root@HIDDEN-UDM:~# vi /etc/resolv.conf
root@HIDDEN-UDM:~# dig www.google.com
^Croot@HIDDEN-UDM:~# cat /etc/resolv.conf
# Generated automatically by ubios-udapi-server
# nameserver 127.0.0.1
nameserver 45.90.28.34
nameserver 45.90.30.34
# nameserver 1.1.1.1
root@HIDDEN-UDM:~# uname -a
Linux HIDDEN-UDM 4.19.152-ui-alpine #4.19.152 SMP Fri Jan 26 01:53:23 CST 2024 aarch64 GNU/Linux
root@HIDDEN-UDM:~# vi /etc/resolv.conf
root@HIDDEN-UDM:~# dig www.google.com
^Croot@HIDDEN-UDM:~# cat /etc/resolv.conf
# Generated automatically by ubios-udapi-server
nameserver 127.0.0.1
# nameserver 45.90.28.34
# nameserver 45.90.30.34
# nameserver 1.1.1.1
root@HIDDEN-UDM:~# ping www.google.com
ping: www.google.com: Temporary failure in name resolution
root@HIDDEN-UDM:~# nano /etc/resolv.conf
-bash: nano: command not found
root@HIDDEN-UDM:~# vi /etc/resolv.conf
root@HIDDEN-UDM:~# pkill dnsq
root@HIDDEN-UDM:~# ping www.google.com
ping: www.google.com: Temporary failure in name resolution
root@HIDDEN-UDM:~# vi /etc/resolv.conf
root@HIDDEN-UDM:~# cat /etc/resolv.conf
# Generated automatically by ubios-udapi-server
# nameserver 127.0.0.1
nameserver 45.90.28.34
nameserver 45.90.30.34
# nameserver 1.1.1.1
root@HIDDEN-UDM:~# vi /etc/resolv.conf
root@HIDDEN-UDM:~# cat /etc/resolv.conf
# Generated automatically by ubios-udapi-server
# nameserver 127.0.0.1
# nameserver 45.90.28.34
# nameserver 45.90.30.34
nameserver 1.1.1.1
root@HIDDEN-UDM:~# ping www.google.com
PING www.google.com (172.217.12.132) 56(84) bytes of data.
64 bytes from lax02s27-in-f4.1e100.net (172.217.12.132): icmp_seq=1 ttl=117 time=3.67 ms
64 bytes from lax02s27-in-f4.1e100.net (172.217.12.132): icmp_seq=2 ttl=117 time=3.22 ms
^C
--- www.google.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 3.217/3.445/3.674/0.228 ms
root@HIDDEN-UDM:~# nextdns config
max-ttl 0s
discovery-dns
mdns all
detect-captive-portals false
use-hosts true
setup-router true
cache-size 0
hardened-privacy false
auto-activate false
profile 4aff7f
listen localhost:53
control /var/run/nextdns.sock
log-queries false
cache-max-age 0s
report-client-info true
bogus-priv true
debug false
max-inflight-requests 256
timeout 5s
root@HIDDEN-UDM:~# nextdns log | tail -n 50
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP PTR db._dns-sd._udp.localdomain. none (qry=78/res=45) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:33360->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP PTR lb._dns-sd._udp.0.0.64.100.in-addr.arpa. none (qry=90/res=57) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:59587->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A dv-us-prod.sentinelone.net. none (qry=77/res=44) 5003ms UDP: dns resolve: read: read udp 47.157.91.28:34948->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A eu-v20.events.data.microsoft.com. none (qry=83/res=50) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:53429->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A sentry.io. none (qry=60/res=27) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:41222->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A sxm.jamfcloud.com. none (qry=68/res=35) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:55397->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP AAAA 7-48-0-app.agent.datadoghq.com. none (qry=81/res=48) 5017ms UDP: dns resolve: read: read udp 47.157.91.28:46436->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A api.apple-cloudkit.com. none (qry=73/res=40) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:43394->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A pancake.apple.com. none (qry=68/res=35) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:54822->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A 1-courier.sandbox.push.apple.com. none (qry=83/res=50) 5004ms UDP: dns resolve: read: read udp 47.157.91.28:47421->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A www.microsoft.com. none (qry=68/res=35) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:37401->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A www.outlook.com. none (qry=66/res=33) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:33319->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP 65 outlook.office365.com. none (qry=72/res=39) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:39341->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A cdn.walkme.com. none (qry=65/res=32) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:48669->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A clientstream.launchdarkly.com. none (qry=80/res=47) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:57531->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A init.itunes.apple.com. none (qry=72/res=39) 5003ms UDP: dns resolve: read: read udp 47.157.91.28:48324->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP PTR lb._dns-sd._udp.localdomain. none (qry=78/res=45) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:45111->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A b.slack-edge.com. none (qry=67/res=34) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:38459->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A app.datadoghq.com. none (qry=68/res=35) 5002ms UDP: dns resolve: read: read udp 47.157.91.28:44587->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A pac.zscalerthree.net. none (qry=71/res=38) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:60932->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A zoom.us. none (qry=58/res=25) 5003ms UDP: dns resolve: read: read udp 47.157.91.28:42854->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A 1-courier.sandbox.push.apple.com. none (qry=83/res=50) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:36741->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A a.slack-edge.com. none (qry=67/res=34) 5002ms UDP: dns resolve: read: read udp 47.157.91.28:60535->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A config.datadoghq.com. none (qry=71/res=38) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:48653->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A 1-courier.push.apple.com. none (qry=75/res=42) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:34383->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A b5n.1password.com. none (qry=68/res=35) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:53684->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP 65 play.google.com. none (qry=66/res=33) 5008ms UDP: dns resolve: read: read udp 47.157.91.28:33756->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP 65 self.events.data.microsoft.com. none (qry=81/res=48) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:40368->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.11 UDP AAAA cognito-idp.us-east-1.amazonaws.com. none (qry=86/res=53) 5008ms UDP: dns resolve: read: read udp 47.157.91.28:51138->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A www.apple.com. none (qry=64/res=31) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:53941->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A clientstream.launchdarkly.com. none (qry=80/res=47) 5003ms UDP: dns resolve: read: read udp 47.157.91.28:53925->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP PTR b._dns-sd._udp.0.0.64.100.in-addr.arpa. none (qry=89/res=56) 5003ms UDP: dns resolve: read: read udp 47.157.91.28:40673->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP PTR b._dns-sd._udp.localdomain. none (qry=77/res=44) 5003ms UDP: dns resolve: read: read udp 47.157.91.28:35359->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP PTR db._dns-sd._udp.na.atxglobal.com. none (qry=83/res=50) 5007ms UDP: dns resolve: read: read udp 47.157.91.28:53750->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP AAAA 7-48-0-app.agent.datadoghq.com. none (qry=81/res=48) 5002ms UDP: dns resolve: read: read udp 47.157.91.28:51622->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP PTR b._dns-sd._udp.atxglobal.com. none (qry=79/res=46) 5007ms UDP: dns resolve: read: read udp 47.157.91.28:48327->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A winatp-gw-neu.microsoft.com. none (qry=78/res=45) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:49986->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A 7-48-0-app.agent.datadoghq.com. none (qry=81/res=48) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:43640->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP 65 b5n.1password.com. none (qry=68/res=35) 5003ms UDP: dns resolve: read: read udp 47.157.91.28:57078->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP 65 clientstream.launchdarkly.com. none (qry=80/res=47) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:42421->45.90.28.0:53: i/o timeout
Mar 09 11:00:17 HIDDEN-UDM nextdns[53046]: Query 192.168.1.61 UDP A outlook.office.com. none (qry=69/res=36) 5005ms UDP: dns resolve: read: read udp 47.157.91.28:43399->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A www.google.com. none (qry=65/res=32) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:53170->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.162 UDP A www.apple.com. none (qry=64/res=31) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:59313->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A outlook.office365.com. none (qry=72/res=39) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:42153->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A venmo.datadoghq.com. none (qry=70/res=37) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:36640->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP PTR 1.0.0.0.0.4.4.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.c.f.ip6.arpa. none (qry=123/res=90) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:44741->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP AAAA config.datadoghq.com. none (qry=71/res=38) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:54803->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.162 UDP A init.push.apple.com. none (qry=70/res=37) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:59959->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.225 UDP A login.microsoftonline.com. none (qry=76/res=43) 5001ms UDP: dns resolve: read: read udp 47.157.91.28:49793->45.90.28.0:53: i/o timeout
Mar 09 11:00:22 HIDDEN-UDM nextdns[53046]: Query 192.168.1.162 UDP 65 init.push.apple.com. none (qry=70/res=37) 5000ms UDP: dns resolve: read: read udp 47.157.91.28:40713->45.90.28.0:53: i/o timeout
root@HIDDEN-UDM:~#

- Allan_Parsons
- 1 mth ago
- Reported - view
What's also worth noting is that when I manually override my Mac OSX dns settings to 45.90.28.34 and 45.90.30.34, queries also time out. As soon as I change to 1.1.1.1, DNS starts working again

Allan_Parsons
1 mth ago
Reported - view

Traceroute to NextDNS Servers:

 traceroute 45.90.30.34
traceroute to 45.90.30.34 (45.90.30.34), 30 hops max, 60 byte packets
 1  47.156.152.1 (47.156.152.1)  1.063 ms  0.907 ms  0.954 ms
 2  ae10--100.ber01.snmn.ca.frontiernet.net (184.19.246.110)  1.038 ms ae10--100.ber01.ontr.ca.frontiernet.net (184.19.246.112)  3.696 ms  3.675 ms
 3  ae2---0.scr05.lsan.ca.frontiernet.net (45.52.201.248)  1.973 ms  1.680 ms  2.408 ms
 4  ae1---0.cbr05.lsan.ca.frontiernet.net (45.52.201.139)  7.075 ms  7.004 ms  6.911 ms
 5  * * *
 6  * * *
 7  Arelion-level3-LosAngeles1.Level3.net (4.68.71.158)  4.362 ms lax-b23-link.ip.twelve99.net (62.115.183.210)  4.042 ms  5.603 ms
 8  lax-b22-link.ip.twelve99.net (62.115.143.39)  4.164 ms  2.271 ms  3.906 ms
 9  p77-3534b.cr1a.csla2.lax2.us.917.as (84.17.33.29)  1.901 ms datacamp-ic-382477.ip.twelve99-cust.net (213.248.89.234)  1.879 ms p77-3534b.cr1a.csla2.lax2.us.917.as (84.17.33.29)  1.927 ms
10  p77-3533a.cr1a.csla2.lax2.us.917.as (84.17.33.27)  1.911 ms p77-3534b.cr1a.csla2.lax2.us.917.as (84.17.33.29)  4.736 ms p77-3533a.cr1a.csla2.lax2.us.917.as (84.17.33.27)  3.074 ms
11  e36.spine1.lax02.us.misaka.io (199.119.64.39)  3.219 ms  3.036 ms  4.721 ms
12  po-28.lag.lax02.us.misaka.io (209.209.58.4)  4.533 ms  4.437 ms  4.450 ms
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *

traceroute to 45.90.28.34 (45.90.28.34), 30 hops max, 60 byte packets
 1  47.156.152.1 (47.156.152.1)  1.645 ms  1.651 ms  1.595 ms
 2  ae10--100.ber01.ontr.ca.frontiernet.net (184.19.246.112)  4.383 ms ae10--100.ber01.snmn.ca.frontiernet.net (184.19.246.110)  1.612 ms  1.618 ms
 3  ae2---0.scr05.lsan.ca.frontiernet.net (45.52.201.248)  2.514 ms ae2---0.scr06.lsan.ca.frontiernet.net (45.52.201.242)  5.506 ms ae2---0.scr05.lsan.ca.frontiernet.net (45.52.201.248)  2.190 ms
 4  ae0---0.cbr05.lsan.ca.frontiernet.net (45.52.201.137)  10.115 ms ae1---0.cbr05.lsan.ca.frontiernet.net (45.52.201.139)  10.122 ms  10.118 ms
 5  * * *
 6  * * *
 7  CHOOPA-LLC.ear1.LosAngeles6.Level3.net (4.26.2.142)  4.779 ms  4.188 ms  47.117 ms
 8  * * *
 9  * * *
10  * * *
11  * * *
12  * * *
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

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NextDNS DNS Servers Suddenly Stopped Working

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