Public bug reported: I am using unbound as DNS proxy as documented in `man NetworkManager.conf`, so I also have dnssec-triggerd installed.
When I check my DNS servers I see: ``` % nmcli dev show|grep -i dns IP4.DNS[1]: 8.8.8.8 IP4.DNS[2]: 172.16.0.1 IP6.DNS[1]: 2001:14ba:f5:1e00::1 ``` The first is Google DNS IPv4, the second my router IPv4 and the third my router IPv6 and finally the fourh Google DNS IPv6. But there is no fourth DNS server. NetworkManager only receives three. ``` unbound: NetworkManager will talk to unbound and dnssec-triggerd, providing a "split DNS" configuration with DNSSEC support. The /etc/resolv.conf will be managed by dnssec-trigger daemon. none: NetworkManager will not modify resolv.conf ``` I believe NetworkManager should receive at least 4 DNS servers as dualstack ISPs usually have two DNS servers or dualstack routers are configured with four. Windows also allows two DNS servers per Internet Protocol. I think this also applies to dnsmasq and is possibly related to bug #1534055 in glibc. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.0.4-0ubuntu7 ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3 Uname: Linux 4.3.0-5-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.19.3-0ubuntu3 Architecture: amd64 CurrentDesktop: MATE Date: Thu Jan 14 14:41:06 2016 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2015-12-12 (32 days ago) InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151212) IpRoute: default via 172.16.0.1 dev wlp3s0 proto static metric 600 169.254.0.0/16 dev wlp3s0 scope link metric 1000 172.16.0.0/16 dev wlp3s0 proto kernel scope link src 172.16.0.6 metric 600 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2016-01-14T10:55:07.579321 nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH wlp3s0 wifi connected /org/freedesktop/NetworkManager/Devices/2 Bahamut_optout_nomap d0a73f1b-5993-4bbf-a2b7-7a0b3e4becf5 /org/freedesktop/NetworkManager/ActiveConnection/0 enp4s0f1 ethernet unavailable /org/freedesktop/NetworkManager/Devices/0 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1534142 Title: When using unbound as DNS proxy, only 3 nameservers get used Status in network-manager package in Ubuntu: New Bug description: I am using unbound as DNS proxy as documented in `man NetworkManager.conf`, so I also have dnssec-triggerd installed. When I check my DNS servers I see: ``` % nmcli dev show|grep -i dns IP4.DNS[1]: 8.8.8.8 IP4.DNS[2]: 172.16.0.1 IP6.DNS[1]: 2001:14ba:f5:1e00::1 ``` The first is Google DNS IPv4, the second my router IPv4 and the third my router IPv6 and finally the fourh Google DNS IPv6. But there is no fourth DNS server. NetworkManager only receives three. ``` unbound: NetworkManager will talk to unbound and dnssec-triggerd, providing a "split DNS" configuration with DNSSEC support. The /etc/resolv.conf will be managed by dnssec-trigger daemon. none: NetworkManager will not modify resolv.conf ``` I believe NetworkManager should receive at least 4 DNS servers as dualstack ISPs usually have two DNS servers or dualstack routers are configured with four. Windows also allows two DNS servers per Internet Protocol. I think this also applies to dnsmasq and is possibly related to bug #1534055 in glibc. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.0.4-0ubuntu7 ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3 Uname: Linux 4.3.0-5-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.19.3-0ubuntu3 Architecture: amd64 CurrentDesktop: MATE Date: Thu Jan 14 14:41:06 2016 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2015-12-12 (32 days ago) InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151212) IpRoute: default via 172.16.0.1 dev wlp3s0 proto static metric 600 169.254.0.0/16 dev wlp3s0 scope link metric 1000 172.16.0.0/16 dev wlp3s0 proto kernel scope link src 172.16.0.6 metric 600 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2016-01-14T10:55:07.579321 nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH wlp3s0 wifi connected /org/freedesktop/NetworkManager/Devices/2 Bahamut_optout_nomap d0a73f1b-5993-4bbf-a2b7-7a0b3e4becf5 /org/freedesktop/NetworkManager/ActiveConnection/0 enp4s0f1 ethernet unavailable /org/freedesktop/NetworkManager/Devices/0 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. 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