[Bug 2030505] Re: on ubuntu 22.04 systemd fails with per interface dns configurations

Wed Sep 6 21:07:17 UTC 2023

We have a dns proxy running on 127.0.0.5:53.  Below are the logs for
ubuntu 22.04 LTS and is not working

1......   dig google.com
;; communications error to 127.0.0.53#53: timed out
;; communications error to 127.0.0.53#53: timed out
;; communications error to 127.0.0.53#53: timed out

; <<>> DiG 9.18.12-0ubuntu0.22.04.2-Ubuntu <<>> google.com
;; global options: +cmd
;; no servers could be reached

2...... resolvectl 
Global
       Protocols: -LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
resolv.conf mode: stub

Link 2 (ens33)
    Current Scopes: DNS
         Protocols: +DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
Current DNS Server: 75.75.75.75
       DNS Servers: 75.75.75.75 75.75.76.76
        DNS Domain: hsd1.ca.comcast.net

Link 3 (wg0)
    Current Scopes: DNS
         Protocols: -DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
Current DNS Server: 127.0.0.5
       DNS Servers: 127.0.0.5
        DNS Domain: ~google.com ~icanhazip.com ~myvm.banyan.local

Link 4 (docker0)
Current Scopes: none
     Protocols: -DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported

3.....TCPDUMP on loopback interface shows some packets for first request and after that there are no packets seen at all. Command used tcpdump -v -i lo host 127.0.0.5 -n -e

13:49:10.755476 00:00:00:00:00:00 > 00:00:00:00:00:00, ethertype IPv4 (0x0800), length 87: (tos 0x0, ttl 64, id 37216, offset 0, flags [none], proto UDP (17), length 73)
    10.115.0.12.41708 > 127.0.0.5.53: [bad udp cksum 0x89ca -> 0x5f03!] 27623+ [1au] A? mtalk.google.com. ar: . OPT UDPsize=65508 (45)
13:49:10.823942 00:00:00:00:00:00 > 00:00:00:00:00:00, ethertype IPv4 (0x0800), length 103: (tos 0x0, ttl 64, id 20158, offset 0, flags [DF], proto UDP (17), length 89)
    127.0.0.5.53 > 10.115.0.12.41708: [bad udp cksum 0x89da -> 0xea69!] 27623 q: A? mtalk.google.com. 1/0/1 mtalk.google.com. [5m] A 142.250.136.188 ar: . OPT UDPsize=512 (61)
13:49:14.005421 00:00:00:00:00:00 > 00:00:00:00:00:00, ethertype IPv4 (0x0800), length 87: (tos 0x0, ttl 64, id 31594, offset 0, flags [none], proto UDP (17), length 73)
    10.115.0.12.54467 > 127.0.0.5.53: [bad udp cksum 0x89ca -> 0xe4a5!] 44148+ [1au] A? drive.google.com. ar: . OPT UDPsize=65508 (45)
13:49:14.005498 00:00:00:00:00:00 > 00:00:00:00:00:00, ethertype IPv4 (0x0800), length 87: (tos 0x0, ttl 64, id 9557, offset 0, flags [none], proto UDP (17), length 73)
    10.115.0.12.35442 > 127.0.0.5.53: [bad udp cksum 0x89ca -> 0x39bb!] 41328+ [1au] Type65? drive.google.com. ar: . OPT UDPsize=65508 (45)
13:49:14.070235 00:00:00:00:00:00 > 00:00:00:00:00:00, ethertype IPv4 (0x0800), length 137: (tos 0x0, ttl 64, id 20216, offset 0, flags [DF], proto UDP (17), length 123)
    127.0.0.5.53 > 10.115.0.12.35442: [bad udp cksum 0x89fc -> 0xb9dc!] 41328 q: Type65? drive.google.com. 0/1/1 ns: google.com. [1m] SOA ns1.google.com. dns-admin.google.com. 561875416 900 900 1800 60 ar: . OPT UDPsize=512 (95)
13:49:14.071633 00:00:00:00:00:00 > 00:00:00:00:00:00, ethertype IPv4 (0x0800), length 183: (tos 0x0, ttl 64, id 20217, offset 0, flags [DF], proto UDP (17), length 169)
    127.0.0.5.53 > 10.115.0.12.54467: [bad udp cksum 0x8a2a -> 0x5a27!] 44148 q: A? drive.google.com. 6/0/1 drive.google.com. [5m] A 209.85.234.138, drive.google.com. [5m] A 209.85.234.101, drive.google.com. [5m] A 209.85.234.139, drive.google.com. [5m] A 209.85.234.113, drive.google.com. [5m] A 209.85.234.102, drive.google.com. [5m] A 209.85.234.100 ar: . OPT UDPsize=512 (141)

4……..Logs on systems-resolved
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: wg0: Bus client set DNS server list to: 127.0.0.5
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Sent message type=method_return sender=n/a destination=:1.523 path=n/a interface=n/a member=n/a cookie=146 reply_cookie=2 signature=n/a error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Got message type=method_call sender=:1.524 destination=org.freedesktop.resolve1 path=/org/freedesktop/resolve1 interface=org.freedesktop.resolve1.Manager member=SetLinkDomains cookie=2 reply_cookie=0 signature=ia(sb) error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Sent message type=method_call sender=n/a destination=org.freedesktop.DBus path=/org/freedesktop/DBus interface=org.freedesktop.DBus member=GetConnectionUnixUser cookie=147 reply_cookie=0 signature=s error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Got message type=method_return sender=org.freedesktop.DBus destination=:1.482 path=n/a interface=n/a member=n/a cookie=75 reply_cookie=147 signature=u error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Sent message type=method_call sender=n/a destination=org.freedesktop.DBus path=/org/freedesktop/DBus interface=org.freedesktop.DBus member=GetConnectionUnixProcessID cookie=148 reply_cookie=0 signature=s error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Got message type=method_return sender=org.freedesktop.DBus destination=:1.482 path=n/a interface=n/a member=n/a cookie=76 reply_cookie=148 signature=u error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: D-Bus dns domains change request from client PID 78225 (n/a) with UID 4294967295
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Scope of DNS server 127.0.0.5 has only route-only domains, not using as global name server
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: wg0: Bus client set search domain list to: ~myvm.banyan.local, ~google.com, ~icanhazip.com
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Sent message type=method_return sender=n/a destination=:1.524 path=n/a interface=n/a member=n/a cookie=149 reply_cookie=2 signature=n/a error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Got message type=method_call sender=:1.525 destination=org.freedesktop.resolve1 path=/org/freedesktop/resolve1 interface=org.freedesktop.resolve1.Manager member=FlushCaches cookie=2 reply_cookie=0 signature=n/a error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Sent message type=method_call sender=n/a destination=org.freedesktop.DBus path=/org/freedesktop/DBus interface=org.freedesktop.DBus member=GetConnectionUnixProcessID cookie=150 reply_cookie=0 signature=s error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Got message type=method_return sender=org.freedesktop.DBus destination=:1.482 path=n/a interface=n/a member=n/a cookie=77 reply_cookie=150 signature=u error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: D-Bus cache flush request from client PID 78226 (n/a) with UID 4294967295
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Flushed all caches.
Sep  6 13:49:04 devanath-virtual-machine systemd-resolved[74204]: Sent message type=method_return sender=n/a destination=:1.525 path=n/a interface=n/a member=n/a cookie=151 reply_cookie=2 signature=n/a error-name=n/a error-message=n/a
Sep  6 13:49:04 devanath-virtual-machine ubuntu-appindicators at ubuntu.com[2582]: Banyan1, Impossible to lookup icon for 'Banyan1_31-panel' in path /tmp/.org.chromium.Chromium.hnduEq
Sep  6 13:49:04 devanath-virtual-machine ubuntu-appindicators at ubuntu.com[2582]: unable to update icon for Banyan1
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 40795
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for mtalk.google.com IN A.
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Switching to DNS server 127.0.0.5 for interface wg0.
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Cache miss for mtalk.google.com IN A
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Firing regular transaction 59243 for <mtalk.google.com IN A> scope dns on wg0/* (validate=yes).
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Using feature level UDP+EDNS0 for transaction 59243.
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Using DNS server 127.0.0.5 for transaction 59243.
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Announcing packet size 65508 in egress EDNS(0) packet.
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Emitting UDP, link MTU is 1380, socket MTU is 0, minimal MTU is 40
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Sending query packet with id 59243 of size 45.
Sep  6 13:49:05 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:06 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:06 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 40684
Sep  6 13:49:06 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for mtalk.google.com IN A.
Sep  6 13:49:06 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:06 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 44, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:06 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 61021
Sep  6 13:49:07 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 122, ifindex=2, ttl=0, fragsize=0
Sep  6 13:49:07 devanath-virtual-machine systemd-resolved[74204]: Processing incoming packet of size 122 on transaction 12040 (rcode=SUCCESS).
Sep  6 13:49:07 devanath-virtual-machine systemd-resolved[74204]: Not caching negative entry for: googlehosted.l.googleusercontent.com IN TYPE65, cache mode set to no-negative
Sep  6 13:49:07 devanath-virtual-machine systemd-resolved[74204]: Regular transaction 12040 for <googlehosted.l.googleusercontent.com IN TYPE65> on scope dns on ens33/* now complete with <success> from network (unsigned; non-confidential).
Sep  6 13:49:07 devanath-virtual-machine systemd-resolved[74204]: Sending response packet with id 29927 on interface 1/AF_INET of size 129.
Sep  6 13:49:07 devanath-virtual-machine systemd-resolved[74204]: Freeing transaction 12040.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 45, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 21731
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for mtalk.google.com IN A.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 47018
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN A.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Cache miss for drive.google.com IN A
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Firing regular transaction 29868 for <drive.google.com IN A> scope dns on wg0/* (validate=yes).
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Using feature level UDP+EDNS0 for transaction 29868.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Using DNS server 127.0.0.5 for transaction 29868.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Announcing packet size 65508 in egress EDNS(0) packet.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Emitting UDP, link MTU is 1380, socket MTU is 0, minimal MTU is 40
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Sending query packet with id 29868 of size 45.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 29136
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN TYPE65.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Cache miss for drive.google.com IN TYPE65
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Firing regular transaction 28833 for <drive.google.com IN TYPE65> scope dns on wg0/* (validate=yes).
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Using feature level UDP+EDNS0 for transaction 28833.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Using DNS server 127.0.0.5 for transaction 28833.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Announcing packet size 65508 in egress EDNS(0) packet.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Emitting UDP, link MTU is 1380, socket MTU is 0, minimal MTU is 40
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Sending query packet with id 28833 of size 45.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 42583
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN A.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 23337
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN TYPE65.
Sep  6 13:49:08 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 8251
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN A.
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 42501
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN TYPE65.
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 8251
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN A.
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 42501
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN TYPE65.
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 14043
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN A.
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 34, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 7140
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN TYPE65.
Sep  6 13:49:09 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Timeout reached on transaction 59243.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Retrying transaction 59243, after switching servers.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Cache miss for mtalk.google.com IN A
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Firing regular transaction 59243 for <mtalk.google.com IN A> scope dns on wg0/* (validate=yes).
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Using feature level UDP+EDNS0 for transaction 59243.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Announcing packet size 65508 in egress EDNS(0) packet.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Emitting UDP, link MTU is 1380, socket MTU is 1380, minimal MTU is 40
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Sending query packet with id 59243 of size 45.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 61, ifindex=3, ttl=0, fragsize=0
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Processing incoming packet of size 61 on transaction 59243 (rcode=SUCCESS).
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Verified we get a response at feature level UDP+EDNS0 from DNS server 127.0.0.5.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Regular transaction 59243 for <mtalk.google.com IN A> on scope dns on wg0/* now complete with <success> from network (unsigned; non-confidential).
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Sending response packet with id 40795 on interface 1/AF_INET of size 50.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Sending response packet with id 40684 on interface 1/AF_INET of size 50.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Sending response packet with id 21731 on interface 1/AF_INET of size 61.
Sep  6 13:49:10 devanath-virtual-machine systemd-resolved[74204]: Freeing transaction 59243.
Sep  6 13:49:11 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 45, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:11 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 39041
Sep  6 13:49:11 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN A.
Sep  6 13:49:11 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:11 devanath-virtual-machine systemd-resolved[74204]: Received dns UDP packet of size 45, ifindex=0, ttl=64, fragsize=0
Sep  6 13:49:11 devanath-virtual-machine systemd-resolved[74204]: Got DNS stub UDP query packet for id 54663
Sep  6 13:49:11 devanath-virtual-machine systemd-resolved[74204]: Looking up RR for drive.google.com IN A.
Sep  6 13:49:11 devanath-virtual-machine systemd-resolved[74204]: Processing query...
Sep  6 13:49:13 devanath-virtual-machine systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully.
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Timeout reached on transaction 29868.
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Retrying transaction 29868, after switching servers.
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Cache miss for drive.google.com IN A
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Firing regular transaction 29868 for <drive.google.com IN A> scope dns on wg0/* (validate=yes).
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Using feature level UDP+EDNS0 for transaction 29868.
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Announcing packet size 65508 in egress EDNS(0) packet.
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Emitting UDP, link MTU is 1380, socket MTU is 1380, minimal MTU is 40
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Sending query packet with id 29868 of size 45.
Sep  6 13:49:14 devanath-virtual-machine systemd-resolved[74204]: Timeout reached on transaction 28833.

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https://bugs.launchpad.net/bugs/2030505

Title:
  on ubuntu 22.04 systemd fails with per interface dns configurations

Status in systemd package in Ubuntu:
  New

Bug description:
  Hi There,

  Systemd seems to work awesome, except when dns proxy is running on
  localhost ipaddress.  The below fix seems to takescare of such cases.
  Unfortunately this is not included in the latest systemd versions on
  ubuntu22.04 LTS.  Is it possible to consider our humble request and
  add this to the systemd versions supported on ubuntu22.04, it is
  creating lots of issues for our users.

  https://github.com/systemd/systemd/pull/25438

  I am raising this ticket as requested below

  -----snippet

  actionparsnip <question707538 at answers.launchpad.net>
  Aug 5, 2023, 6:26 PM (2 days ago)
  to me

  Your question #707538 on systemd in Ubuntu changed:
  https://answers.launchpad.net/ubuntu/+source/systemd/+question/707538

      Status: Open => Answered

  actionparsnip proposed the following answer:
  I suggest you report a bug. Add your URL to the bug for visibility. You
  can start the process by running:

  ubuntu-bug systemd
  --------

  Thanks in advance

  Regards,
  Dev

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