[Touch-packages] [Bug 1727566] Re: extra left-behind domains break domain name rsolution
[Expired for systemd (Ubuntu) because there has been no activity for 60 days.] ** Changed in: systemd (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1727566 Title: extra left-behind domains break domain name rsolution Status in systemd package in Ubuntu: Expired Bug description: This seems related to LP: #1717995 but that is marked fixed. I used my laptop at work, where I have a docking station with USB ethernet included (interface enx0050b6cf4d4a). The dhcp on the wired ethernet includes my work domain, purestorage.com. I undocked, suspended, and came home, where I have no USB ethernet (just wifi wlp4s0), and dhcp on wifi doesn't mention purestorage.com. However, I still have leftover state that stops purestorage.com names from resolving: $ systemd-resolve webvpn.purestorage.com webvpn.purestorage.com: resolve call failed: No appropriate name servers or networks for name found $ cat /etc/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 # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers. nameserver 127.0.0.53 search lan purestorage.com dev.purestorage.com $ systemd-resolve --status Global DNS Domain: lan purestorage.com dev.purestorage.com DNSSEC NTA: 10.in-addr.arpa 16.172.in-addr.arpa 168.192.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 31.172.in-addr.arpa corp d.f.ip6.arpa home internal intranet lan local private test Link 3 (wlp4s0) Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6 LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no DNS Servers: 10.1.0.1 fda0:5173:b519::1 DNS Domain: lan Link 2 (enp0s31f6) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no It seems there are still issues around network interfaces being removed but leaving behind their DNS config. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: systemd 234-2ubuntu12 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Oct 25 17:48:47 2017 InstallationDate: Installed on 2016-09-01 (419 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160901) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 138a:0090 Validity Sensors, Inc. Bus 001 Device 003: ID 13d3:5248 IMC Networks Bus 001 Device 005: ID 056a:5087 Wacom Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20FRS2FK00 ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=30d5ada5-835d-4cf7-96cf-3329c0316107 ro quiet splash vt.handoff=7 SourcePackage: systemd UpgradeStatus: Upgraded to artful on 2017-07-26 (91 days ago) dmi.bios.date: 07/13/2017 dmi.bios.vendor: LENOVO dmi.bios.version: N1FET53W (1.27 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FRS2FK00 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1FET53W(1.27):bd07/13/2017:svnLENOVO:pn20FRS2FK00:pvrThinkPadX1Yoga1st:rvnLENOVO:rn20FRS2FK00:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrNone: dmi.product.family: ThinkPad X1 Yoga 1st dmi.product.name: 20FRS2FK00 dmi.product.version: ThinkPad
[Touch-packages] [Bug 1727566] Re: extra left-behind domains break domain name rsolution
Thank you for reporting this bug and helping to improve Ubuntu. Why do you believe that the problem here is one of 'leftover state'? The systemd-resolve --status output shows a simple config, with a domain search list and two DNS servers (one ipv4 address, one ipv6 address). If some of this state is "leftover", it's not clear what state that is. Are 10.1.0.1 and fda0:5173:b519::1 the correct DNS servers for your home wifi? Do these DNS lookups work correctly when you issue them directly against the configured nameservers? (nslookup webvpn.purestorage.com 10.1.0.1; nslookup webvpn.purestorage.com fda0:5173:b519::1) What happens if you try to do the lookup with 'nslookup webvpn.purestorage.com' instead of with systemd-resolve? (systemd- resolve uses a different protocol to talk to systemd-resolved, and may give different results - which normally indicates a bug.) Can you provide a network trace of the DNS traffic when these lookups fail? ** Changed in: systemd (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1727566 Title: extra left-behind domains break domain name rsolution Status in systemd package in Ubuntu: Incomplete Bug description: This seems related to LP: #1717995 but that is marked fixed. I used my laptop at work, where I have a docking station with USB ethernet included (interface enx0050b6cf4d4a). The dhcp on the wired ethernet includes my work domain, purestorage.com. I undocked, suspended, and came home, where I have no USB ethernet (just wifi wlp4s0), and dhcp on wifi doesn't mention purestorage.com. However, I still have leftover state that stops purestorage.com names from resolving: $ systemd-resolve webvpn.purestorage.com webvpn.purestorage.com: resolve call failed: No appropriate name servers or networks for name found $ cat /etc/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 # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers. nameserver 127.0.0.53 search lan purestorage.com dev.purestorage.com $ systemd-resolve --status Global DNS Domain: lan purestorage.com dev.purestorage.com DNSSEC NTA: 10.in-addr.arpa 16.172.in-addr.arpa 168.192.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 31.172.in-addr.arpa corp d.f.ip6.arpa home internal intranet lan local private test Link 3 (wlp4s0) Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6 LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no DNS Servers: 10.1.0.1 fda0:5173:b519::1 DNS Domain: lan Link 2 (enp0s31f6) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no It seems there are still issues around network interfaces being removed but leaving behind their DNS config. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: systemd 234-2ubuntu12 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Oct 25 17:48:47 2017 InstallationDate: Installed on 2016-09-01 (419 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160901) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 138a:0090 Validity Sensors, Inc. Bus 001 Device 003: ID 13d3:5248 IMC Networks Bus 001 Device 005: ID 056a:5087 Wacom Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20FRS2FK00 ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR=
[Touch-packages] [Bug 1727566] Re: extra left-behind domains break domain name rsolution
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: systemd (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1727566 Title: extra left-behind domains break domain name rsolution Status in systemd package in Ubuntu: Confirmed Bug description: This seems related to LP: #1717995 but that is marked fixed. I used my laptop at work, where I have a docking station with USB ethernet included (interface enx0050b6cf4d4a). The dhcp on the wired ethernet includes my work domain, purestorage.com. I undocked, suspended, and came home, where I have no USB ethernet (just wifi wlp4s0), and dhcp on wifi doesn't mention purestorage.com. However, I still have leftover state that stops purestorage.com names from resolving: $ systemd-resolve webvpn.purestorage.com webvpn.purestorage.com: resolve call failed: No appropriate name servers or networks for name found $ cat /etc/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 # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers. nameserver 127.0.0.53 search lan purestorage.com dev.purestorage.com $ systemd-resolve --status Global DNS Domain: lan purestorage.com dev.purestorage.com DNSSEC NTA: 10.in-addr.arpa 16.172.in-addr.arpa 168.192.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 31.172.in-addr.arpa corp d.f.ip6.arpa home internal intranet lan local private test Link 3 (wlp4s0) Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6 LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no DNS Servers: 10.1.0.1 fda0:5173:b519::1 DNS Domain: lan Link 2 (enp0s31f6) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no It seems there are still issues around network interfaces being removed but leaving behind their DNS config. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: systemd 234-2ubuntu12 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Oct 25 17:48:47 2017 InstallationDate: Installed on 2016-09-01 (419 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160901) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 138a:0090 Validity Sensors, Inc. Bus 001 Device 003: ID 13d3:5248 IMC Networks Bus 001 Device 005: ID 056a:5087 Wacom Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20FRS2FK00 ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=30d5ada5-835d-4cf7-96cf-3329c0316107 ro quiet splash vt.handoff=7 SourcePackage: systemd UpgradeStatus: Upgraded to artful on 2017-07-26 (91 days ago) dmi.bios.date: 07/13/2017 dmi.bios.vendor: LENOVO dmi.bios.version: N1FET53W (1.27 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FRS2FK00 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1FET53W(1.27):bd07/13/2017:svnLENOVO:pn20FRS2FK00:pvrThinkPadX1Yoga1st:rvnLENOVO:rn20FRS2FK00:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrNone: dmi.product.family: ThinkPad X1 Yoga 1st dmi.product.name: 20FRS2FK00 dmi.product.version: ThinkPad X1 Yoga 1st
