Hi. On Mon, Sep 25, 2017 at 12:49:22PM -0700, Gary Roach wrote: > On 09/23/2017 09:31 PM, Cindy-Sue Causey wrote: > > On 9/23/17, Gary Roach <gary719_li...@verizon.net> wrote: > > > Hi all. > > > I have been trying for several day to get firefox to work on a newly > > > installed Debian Stretch system. It Seems that Firefox can't find a DNS > > > server. I am having the same problem with apt-get update. None of my > > > mirrors can be reached. Ping works just fine. I can't even reach the > > > other computers on my home network if I use their names. IP addresses > > > work OK. I have installed resolvconf and followed several installation > > > instructions to no avail. The name servers for my router > > > (192.168.1.1)and both google servers at 8.8.8.8 and 8.8.4.4. are listed > > > in the correct file (can't remember which one). This system worked fine > > > when first installed. I installed qemu-kvm on the system and I think in > > > broke things.I've run out of ideas. > > > > > > Please help > > > An addition is necessary here. The problem started when I installed the > qemu-kvm virtual machine. Now the Kubuntu system - the guest - network > access works fine. But the host machine can't find the DNS servers. This > makes no sense.
And it never make any sense unless you troubleshoot it. Please post these things from the problematic PC: ip a l ip ro l cat /etc/resolv.conf "tcpdump -nvi any udp port 53 or tcp port 53" run while doing "getent hosts www.google.com" Reco