More experiments, results and proposed solution: 1) On a system with
whoopsie running network-manager NOT running, but network interface initialized via /etc/network/interfaces dnsmask running with network-managers configuration for dnsmasq IPv6 aktivated I see the annoying repetive DNS-traffic for daisy.ubuntu.com. One or more packets per minute. This proves network-manager itself is not the bad guy! 2) Network-manager provides a configuration to dnsmask which disabled cache (--cache-size=0). Removing this option from dnsmasq configuration reduces traffic rate to 1 packet per 10 minutes. This corresponds to the lifetime for the DNS record of daisy.ubuntu.com which is set to 600 seconds. 3) Running network-manager again and dnsmasq started from network- manager, but with the modified configuration shows same result as #2. 4) HOWTO modify configuration for dnsmasq: Network-manager provides the option --cache-size=0 as argument on command line. This cannot be overriden by config-files, but you can use a wrapper script which is called by network-manager instead of real dnsmasq. The fake dnsmask purges the option --cache-size=0 and calls the real dnsmasq. I provide this wrapper script as attachment. Place it in /usr/local/sbin (this directory is searched before /usr/sbin), name it dnsmasq, set owner and group to root and set execute bits. Use at own risk. Enjoy! ** Attachment added: "wrapper script for dnsmasq, purges option --cache-size=0" https://bugs.launchpad.net/whoopsie/+bug/991481/+attachment/4276624/+files/dnsmasq -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/991481 Title: Constant dns traffic for daisy.ubuntu.com To manage notifications about this bug go to: https://bugs.launchpad.net/whoopsie/+bug/991481/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
