** Summary changed: - DNS unresponsive/slow when different DNS are provided by wifi and wired connected to different networks + (1) NM fails to configure routing correctly when connect to two LANs; (2) dnsmasq initially slow when some upstream nameservers can't be reached
-- 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/979067 Title: (1) NM fails to configure routing correctly when connect to two LANs; (2) dnsmasq initially slow when some upstream nameservers can't be reached Status in “dnsmasq” package in Ubuntu: New Status in “network-manager” package in Ubuntu: Confirmed Bug description: My computer happens to be connected to two networks through eth0 and wlan0. NetworkManager connects to both of them automatically and use DHCP for both of them. Both networks are protected from the outside by firewalls and they are lots of DNS servers (obtained automatically). Since the upgrade to Precise, DNS no longer works without manual intervention. What happens is that, since bug #903854, dnsmasq no longer receives the option --strict-order. As a consequence, it tries servers in a random order to resolve DNS requests. In particular, it tries to access DNS servers from the wireless network through the eth0 route, which crosses a firewall, and therefore it fails to resolve requests. It takes a lot of failures before all the unreachable servers have been exhausted, which makes for a poor user experience. With the --strict-order option, dnsmasq tries to access servers that can be accessed by the default route, which succeeds immediately. Note that I am not sure that --strict-order is the proper fix and it may only be papering over a real bug, but at least it does fix the issue. network-manager: 0.9.4.0-0ubuntu2 dnsmasq-base: 2.59-4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/979067/+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
