This bug looks close but if it's not completely the same. tell me and I'll open a new bug.
In my case eth0 is manually defined and N-M modifies the host in the following way 192.168.0.3 black # Added by NetworkManager 127.0.0.1 localhost.localdomain localhost ::1 black localhost6.localdomain6 localhost6 The last line is systematically added. That's problematic because this is a local dns based on DNSMasq which relies on /etc/hosts and resolving the name of the DNS must return its external IP not the IPv6 loopback address. If I manually remove 'black' from the IPv6 line, it is readded sometime later. -- Aliases in /etc/hosts overwritten https://bugs.launchpad.net/bugs/659872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs