Reproducing the case outside the systemd tests (Commands on Ubuntu 22.04, with root permissions) jammy-Proposed has dnsmasq 2.86 right now
apt update; apt upgrade -y; apt install dnsmasq-base systemctl reset-failed systemd-networkd systemd-resolved mkdir /run/systemd/resolved.conf.d cat > /run/systemd/resolved.conf.d/test-enable-dnssec.conf << EOF [Resolve] DNSSEC=allow-downgrade LLMNR=no MulticastDNS=no DNSOverTLS=no EOF ip link add name test_eth42 address de:ad:be:ef:47:11 type veth peer name router_eth42 ip a flush dev router_eth42 ip a add 192.168.5.1/24 dev router_eth42 ip link set router_eth42 up dnsmasq --no-daemon --log-queries --log-facility=/tmp/dnsmasq.log --conf-file=/dev/null --dhcp-leasefile=/tmp/dnsmasq.leases --bind- interfaces --interface=router_eth42 --except-interface=lo --dhcp- range=192.168.5.10,192.168.5.200 --address=/#/192.168.42.1 & cat > /run/systemd/network/general.network << EOF [Match] Name=test_eth42 [Network] DHCP=ipv4 IPv6AcceptRA=False DNSSECNegativeTrustAnchors=search.example.com EOF ip link add name testvpnclient type veth peer name testvpnrouter ip a flush dev testvpnrouter ip a add 10.241.3.1/24 dev testvpnrouter ip link set testvpnrouter up dnsmasq --no-daemon --log-queries --log-facility=/tmp/dnsmasq-vpn.log --conf-file=/dev/null --dhcp-leasefile=/dev/null --bind-interfaces --interface=testvpnrouter --except-interface=lo --address=/math.lab/10.241.3.3 --address=/cantina.company/10.241.4.4 & cat > /run/systemd/network/vpn.network << EOF [Match] Name=testvpnclient [Network] IPv6AcceptRA=False Address=10.241.3.2/24 DNS=10.241.3.1 Domains=~company ~lab DNSSECNegativeTrustAnchors=company la EOF systemctl restart systemd-networkd /usr/lib/systemd/systemd-networkd-wait-online --interface test_eth42 --interface=testvpnclient --timeout=20 systemctl restart systemd-resolved # The original test runs "resolvectl query math.lab" # That would probe everything, do this step by step #1 ipv4 works and looks pretty much the same result on good/bad case dig @10.241.3.1 -t A math.lab root@j-dnsmasq-proposed:~# dig @10.241.3.1 -t A math.lab dnsmasq: query[A] math.lab from 10.241.3.1 dnsmasq: config math.lab is 10.241.3.3 ; <<>> DiG 9.16.15-Ubuntu <<>> @10.241.3.1 -t A math.lab ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11869 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;math.lab. IN A ;; ANSWER SECTION: math.lab. 0 IN A 10.241.3.3 ;; Query time: 0 msec ;; SERVER: 10.241.3.1#53(10.241.3.1) ;; WHEN: Tue Jan 11 13:09:07 UTC 2022 ;; MSG SIZE rcvd: 53 #2 ipv6 fails and gets into a loop dig @10.241.3.1 -t AAAA math.lab -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1957086 Title: Autopkgtest systemd fail against dnsmasq 2.86 (22.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1957086/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
