** Changed in: glibc (Ubuntu Xenial) Importance: Undecided => Medium ** Changed in: glibc (Ubuntu) Importance: Undecided => Medium
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1674273 Title: Resolver ignores ndots option Status in glibc package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Status in glibc source package in Xenial: Confirmed Status in linux source package in Xenial: Confirmed Bug description: This is a re-report of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/401202 since that one was apparently closed as no-fix simply because it was too old. This still occurs in xenial. Original description: Regardless of ndots option in /etc/resolv.conf, when NXDOMAIN is returned from the DNS server then resolver always try another attempt with the original name extended by what is in search option. For example, if you're looking for very.long.url.nowhere and there is a line "search ubuntu.com" in resolv.conf you will get addres of server very.long.url.nowhere.ubuntu.com if such exists. It is incorrect, it should occurs only for urls having less that ndots option dots in its name. My system is a standard Ubuntu Xenial desktop amd64 using network manager and the default configured Wired Connection 1 (i.e. DHCP). To reproduce: - sudo install /dev/fd/0 /etc/NetworkManager/dnsmasq.d/domain <<<'log-queries=extra' - sudo killall dnsmasq - ping some.long.non-existent.name - Watch /var/log/syslog In my case: Mar 20 23:19:22 eragon dnsmasq[27367]: 46 127.0.0.1/40646 query[A] some.long.non-existent.name from 127.0.0.1 Mar 20 23:19:22 eragon dnsmasq[27367]: 46 127.0.0.1/40646 forwarded some.long.non-existent.name to 192.168.5.1 Mar 20 23:19:22 eragon dnsmasq[27367]: 46 127.0.0.1/40646 reply some.long.non-existent.name is NXDOMAIN Mar 20 23:19:22 eragon dnsmasq[27367]: 47 127.0.0.1/52417 query[A] some.long.non-existent.name.sebunger.dnsalias.org from 127.0.0.1 Mar 20 23:19:22 eragon dnsmasq[27367]: 47 127.0.0.1/52417 forwarded some.long.non-existent.name.sebunger.dnsalias.org to 192.168.5.1 Mar 20 23:19:23 eragon dnsmasq[27367]: 47 127.0.0.1/52417 reply some.long.non-existent.name.sebunger.dnsalias.org is <CNAME> Mar 20 23:19:23 eragon dnsmasq[27367]: 47 127.0.0.1/52417 reply sebunger.dnsalias.org is 203.173.156.30 My /etc/resolv.conf (which is a sym-link to ../run/resolvconf/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 127.0.1.1 search sebunger.dnsalias.org options ndots:1 (I added the options ndots with no effect) --- ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-id', '/dev/snd/by-path', '/dev/snd/pcmC1D0c', '/dev/snd/controlC1', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 16.04 EcryptfsInUse: Yes IwConfig: enp2s0 no wireless extensions. lo no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. GA-MA770-UD3 NonfreeKernelModules: nvidia_uvm nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-66-generic root=/dev/mapper/vg0-root ro rootdelay=120 quiet splash ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-66-generic N/A linux-backports-modules-4.4.0-66-generic N/A linux-firmware 1.157.8 RfKill: Tags: xenial xenial Uname: Linux 4.4.0-66-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dialout dip floppy kvm lpadmin plugdev sambashare ssh sudo users video _MarkForUpload: True dmi.bios.date: 06/12/2009 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: FB dmi.board.name: GA-MA770-UD3 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrFB:bd06/12/2009:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA770-UD3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA770-UD3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: GA-MA770-UD3 dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1674273/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
