dnsmasq occasionally failing to resolve anything

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I use Lubuntu 17.10. By default, NetworkManager sets your /etc/resolv.conf to use a dnsmasq on localhost. Now, for some reason, occasionally (some networks some of the time, other networks always, some networks never) I fail to resolve hostnames with this setup, while if I enter the DNS server name from the DHCP lease NetworkManager got, manually, into /etc/resolv.conf - name resolution works again.



I realize this question is slightly vague, but - why could this be happening and how can I get dnsmasq to properly use the DHCP-provided DNS servers rather than somehow ignoring them?




ubuntu dns networkmanager dnsmasq




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    I use Lubuntu 17.10. By default, NetworkManager sets your /etc/resolv.conf to use a dnsmasq on localhost. Now, for some reason, occasionally (some networks some of the time, other networks always, some networks never) I fail to resolve hostnames with this setup, while if I enter the DNS server name from the DHCP lease NetworkManager got, manually, into /etc/resolv.conf - name resolution works again.



    I realize this question is slightly vague, but - why could this be happening and how can I get dnsmasq to properly use the DHCP-provided DNS servers rather than somehow ignoring them?




    ubuntu dns networkmanager dnsmasq




    share|improve this question






















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I use Lubuntu 17.10. By default, NetworkManager sets your /etc/resolv.conf to use a dnsmasq on localhost. Now, for some reason, occasionally (some networks some of the time, other networks always, some networks never) I fail to resolve hostnames with this setup, while if I enter the DNS server name from the DHCP lease NetworkManager got, manually, into /etc/resolv.conf - name resolution works again.



      I realize this question is slightly vague, but - why could this be happening and how can I get dnsmasq to properly use the DHCP-provided DNS servers rather than somehow ignoring them?




      ubuntu dns networkmanager dnsmasq




      share|improve this question












      I use Lubuntu 17.10. By default, NetworkManager sets your /etc/resolv.conf to use a dnsmasq on localhost. Now, for some reason, occasionally (some networks some of the time, other networks always, some networks never) I fail to resolve hostnames with this setup, while if I enter the DNS server name from the DHCP lease NetworkManager got, manually, into /etc/resolv.conf - name resolution works again.



      I realize this question is slightly vague, but - why could this be happening and how can I get dnsmasq to properly use the DHCP-provided DNS servers rather than somehow ignoring them?





      ubuntu dns networkmanager dnsmasq





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      asked Nov 9 '17 at 22:41









      einpoklum

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