[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
I have replied to the upstream comment, however with Zesty I am seeing a slightly different symptom. Both systemd-resolve and nslookup both timeout rather than just being slow. Disabling DNSSEC still fixes it however. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
@Colin, can you please reply to what upstream asked? https://github.com/systemd/systemd/issues/3980#issuecomment-279779991 ** Summary changed: - nslookup doesn't works + Slow DNS lookup through Netgear DG834G V4 router -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
Hello. I'm recently upgraded to Zesty and the same messages in journalctl (too many): бер 05 14:33:56 p5q3 systemd-resolved[1223]: Using degraded feature set (UDP) for DNS server 127.0.1.1. Also: ~$ nslookup google.com ;; connection timed out; no servers could be reached But: ~$ systemd-resolve google.com google.com: 216.58.209.174 2a00:1450:400d:802::200e -- Information acquired via protocol DNS in 65.9ms. -- Data is authenticated: no Also, I'm experiencing some difficulties connecting by some software, for example teamviewer can't connect at all. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
** Tags added: zesty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
I'm seeing a similar issue on current Ubuntu Yakkety with Android phone AP via WPA2-personal: $ systemd-resolve www.guugle.com www.guugle.com: 208.73.210.200 208.73.210.214 208.73.211.178 208.73.210.217 -- Information acquired via protocol DNS in 13.6889s. -- Data is authenticated: no `host www.guugle.com` and nslookup on the other hand return immediately during this time. Disabling DNSSEC and restarting systemd-resolved using the instructions above has no effect (the above trace is after disabling). syslog contains the lines: Oct 31 20:25:41 x systemd-resolved[5309]: Using degraded feature set (UDP+EDNS0+DO) for DNS server 127.0.0.1. resolv.conf contains only `nameserver 127.0.0.1`. The problem disappears if I add also the line `nameserver 192.168.43.1` (that's the upstream DNS) --- however, the following line appears in the logs: Oct 31 20:34:05 x systemd-resolved[5309]: Using degraded feature set (UDP) for DNS server 192.168.43.1. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
Thanks Martin. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
Thanks for checking. So you can keep this workaround in place for the time being. ** Changed in: systemd (Ubuntu) Importance: Undecided => Medium ** Changed in: systemd (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
Disabling DNSSEC appears to have solved the problem. (I had to manually create /etc/systemd/resolved.conf.d/ before the command would run) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
Thanks! I forwarded this to https://github.com/systemd/systemd/issues/3980 . Can you please try how this behaves when disabling DNSSEC? printf '[Resolve]\nDNSSEC=no\n' | sudo tee /etc/systemd/resolved.conf.d/nodnssec.conf sudo systemctl restart systemd-resolved and then resolve something? ** Bug watch added: github.com/systemd/systemd/issues #3980 https://github.com/systemd/systemd/issues/3980 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
** Attachment added: "systemd-resolve debug log" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+attachment/4723282/+files/debug.txt ** Changed in: systemd (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
Can you please generate a debug log for resolving a name when this takes a long time? sudo systemctl stop systemd-resolved sudo SYSTEMD_LOG_LEVEL=debug script -c /lib/systemd/systemd-resolved /tmp/debug.txt then in another terminal systemd-resolve www.google.com Control-C the resolved process in the first terminal, and attach /tmp/debug.txt here. Thanks! ** Changed in: systemd (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
I am marking this New again as it has not actually been fixed by upgrading the router. It now appears that the symptom is intermittent. I have not been able to determine what it is that triggers it to fail or work. ** Changed in: systemd (Ubuntu) Status: Invalid => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1609546] Re: Slow DNS lookup through Netgear DG834G V4 router
Having updated the router to the latest firmware (5.01.17) the problem appears to be resolved (even though the release notes made no mention of DNS. Marking this bug as invalid. ** Changed in: systemd (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609546 Title: Slow DNS lookup through Netgear DG834G V4 router To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1609546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
