Hello, I did a clean install of the Ubuntu 17.04 release today. All websites were opening correctly in Chrome/Firefox using on a LAN connection. However, on WiFi, gmail/youtube are not opening in Chrome/Firefox. I am able to successfully ping both gmail and youtube. Other websites successfully open.
I ran "systemd-resolve --status" with "DNSSEC supported: yes". After multiple reboots and tries, youtube.com opened in the browser. However, I ran the above command and got "DNSSEC supported: no". I am now getting "DNSSEC supported: yes" and gmail / youtube are not opening in the browser. Is there any update on this bug ? Regards -- 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/1647031 Title: systemd-resolved’s 127.0.0.53 server does not follow CNAME records Status in Nextcloud: Unknown Status in systemd: New Status in network-manager package in Ubuntu: Fix Released Status in systemd package in Ubuntu: Fix Released Status in network-manager source package in Yakkety: Invalid Status in systemd source package in Yakkety: Fix Committed Bug description: [SRU Justification] Ubuntu 16.10 server uses systemd-resolved by default, configured both as a DNS stub resolver on 127.0.0.53 and as an NSS module via libnss-resolved talking to the dbus service. The DNS stub resolver has a bug that causes it to fail to resolve CNAME records. This went unnoticed before release because by default the NSS module is used. But a chroot or container on the system that does not include libnss-resolved and is configured to use the stub resolver will experience DNS failures. [Test case] 1. On a yakkety server system, create a xenial chroot with mk-sbuild (or equivalent). 2. Make sure that the host system has /etc/resolv.conf pointed at 127.0.0.53. 2. Enter the chroot with 'sudo schroot -c xenial-amd64' or such. 3. Install the iputils-ping package. 4. ping www.freedesktop.org 5. Confirm that the hostname does not resolve. 6. Install the systemd package from yakkety-proposed onto the host system. 7. ping www.freedesktop.org 8. Confirm that the hostname does now resolve. [Regression potential] With a 247-line patch to a key service, there is some risk of regression. Regression risk is mitigated because this patch is already present in zesty and upstream, where no regressions have been reported, and because it only touches the DNS stub resolver which is not the code path used by default on host systems. $ systemd-resolve www.freedesktop.org www.freedesktop.org: 131.252.210.176 2610:10:20:722:a800:ff:feda:470f (annarchy.freedesktop.org) -- Information acquired via protocol DNS in 673.6ms. -- Data is authenticated: no $ ping www.freedesktop.org ping: www.freedesktop.org: Name or service not known $ 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 $ dig +no{cmd,comments,stats} www.freedesktop.org @127.0.0.53 ;www.freedesktop.org. IN A www.freedesktop.org. 7146 IN CNAME annarchy.freedesktop.org. $ dig +no{cmd,comments,stats} www.freedesktop.org @8.8.8.8 ;www.freedesktop.org. IN A www.freedesktop.org. 14399 IN CNAME annarchy.freedesktop.org. annarchy.freedesktop.org. 14399 IN A 131.252.210.176 I trust it needn’t be explained why this makes the internet almost completely useless in zesty. To manage notifications about this bug go to: https://bugs.launchpad.net/nextcloud-snap/+bug/1647031/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
