Error in network definition: unknown key dhcp4-overrides












0















I am trying to set up Ubuntu 18.04 LTS, which appears to be using netplan to configure networking. In this case I need to override the DNS servers provided by DHCP and use manually assigned nameservers. So I modified the netplan configuration as follows:



# For more information, see netplan(5).

network:

  version: 2

  renderer: networkd

  ethernets:

    enp2s1:

      dhcp4: yes

      dhcp4-overrides:

        use-dns: false

      dhcp6: yes

      dhcp6-overrides:

        use-dns: false

      nameservers:

        addresses: ["fd35:2ff0:b0b9:d0c0::1:1", 192.168.255.17]


In another question, and on netplan.io, it was explained that netplan had options dhcp4-overrides and dhcp6-overrides which would permit this, but these don't appear to work. netplan generate or netplan apply gives the error:



Error in network definition //etc/netplan/01-netcfg.yaml line 6 column 6: unknown key dhcp4-overrides


How, then, can I be sure that my specified nameservers will be used, and the nameservers obtained from DHCP will never be used? I'm willing to toss netplan in the bin if necessary.






18.04 netplan







share|improve this question























  • @steeldriver That is the question I linked to above.

    – Michael Hampton
    4 hours ago
















0















I am trying to set up Ubuntu 18.04 LTS, which appears to be using netplan to configure networking. In this case I need to override the DNS servers provided by DHCP and use manually assigned nameservers. So I modified the netplan configuration as follows:



# For more information, see netplan(5).

network:

  version: 2

  renderer: networkd

  ethernets:

    enp2s1:

      dhcp4: yes

      dhcp4-overrides:

        use-dns: false

      dhcp6: yes

      dhcp6-overrides:

        use-dns: false

      nameservers:

        addresses: ["fd35:2ff0:b0b9:d0c0::1:1", 192.168.255.17]


In another question, and on netplan.io, it was explained that netplan had options dhcp4-overrides and dhcp6-overrides which would permit this, but these don't appear to work. netplan generate or netplan apply gives the error:



Error in network definition //etc/netplan/01-netcfg.yaml line 6 column 6: unknown key dhcp4-overrides


How, then, can I be sure that my specified nameservers will be used, and the nameservers obtained from DHCP will never be used? I'm willing to toss netplan in the bin if necessary.






18.04 netplan







share|improve this question























  • @steeldriver That is the question I linked to above.

    – Michael Hampton
    4 hours ago














0












0








0








I am trying to set up Ubuntu 18.04 LTS, which appears to be using netplan to configure networking. In this case I need to override the DNS servers provided by DHCP and use manually assigned nameservers. So I modified the netplan configuration as follows:



# For more information, see netplan(5).

network:

  version: 2

  renderer: networkd

  ethernets:

    enp2s1:

      dhcp4: yes

      dhcp4-overrides:

        use-dns: false

      dhcp6: yes

      dhcp6-overrides:

        use-dns: false

      nameservers:

        addresses: ["fd35:2ff0:b0b9:d0c0::1:1", 192.168.255.17]


In another question, and on netplan.io, it was explained that netplan had options dhcp4-overrides and dhcp6-overrides which would permit this, but these don't appear to work. netplan generate or netplan apply gives the error:



Error in network definition //etc/netplan/01-netcfg.yaml line 6 column 6: unknown key dhcp4-overrides


How, then, can I be sure that my specified nameservers will be used, and the nameservers obtained from DHCP will never be used? I'm willing to toss netplan in the bin if necessary.






18.04 netplan







share|improve this question














I am trying to set up Ubuntu 18.04 LTS, which appears to be using netplan to configure networking. In this case I need to override the DNS servers provided by DHCP and use manually assigned nameservers. So I modified the netplan configuration as follows:



# For more information, see netplan(5).

network:

  version: 2

  renderer: networkd

  ethernets:

    enp2s1:

      dhcp4: yes

      dhcp4-overrides:

        use-dns: false

      dhcp6: yes

      dhcp6-overrides:

        use-dns: false

      nameservers:

        addresses: ["fd35:2ff0:b0b9:d0c0::1:1", 192.168.255.17]


In another question, and on netplan.io, it was explained that netplan had options dhcp4-overrides and dhcp6-overrides which would permit this, but these don't appear to work. netplan generate or netplan apply gives the error:



Error in network definition //etc/netplan/01-netcfg.yaml line 6 column 6: unknown key dhcp4-overrides


How, then, can I be sure that my specified nameservers will be used, and the nameservers obtained from DHCP will never be used? I'm willing to toss netplan in the bin if necessary.






18.04 netplan




18.04 netplan






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 4 hours ago









Michael HamptonMichael Hampton

1,040820




1,040820













  • @steeldriver That is the question I linked to above.

    – Michael Hampton
    4 hours ago



















  • @steeldriver That is the question I linked to above.

    – Michael Hampton
    4 hours ago

















@steeldriver That is the question I linked to above.

– Michael Hampton
4 hours ago





@steeldriver That is the question I linked to above.

– Michael Hampton
4 hours ago










1 Answer
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oldest

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I'm about halfway to throwing netplan in the bin, but I have a workaround that appears to work.



Seeing that it was rendering to networkd, and that systemd-resolved was handling DNS, I just created the relevant configuration directly.



I dropped the dhcp overrides bits from netplan, leaving me with only:



# For more information, see netplan(5).

network:

  version: 2

  renderer: networkd

  ethernets:

    enp2s1:

      dhcp4: yes

      dhcp6: yes


Then I created a file /etc/systemd/resolved.conf.d/dns.conf to specify the DNS servers I needed:



[Resolve]

DNS=fd35:2ff0:b0b9:d0c0::1:1 192.168.255.17





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    0














    I'm about halfway to throwing netplan in the bin, but I have a workaround that appears to work.



    Seeing that it was rendering to networkd, and that systemd-resolved was handling DNS, I just created the relevant configuration directly.



    I dropped the dhcp overrides bits from netplan, leaving me with only:



    # For more information, see netplan(5).
    
network:
    
  version: 2
    
  renderer: networkd
    
  ethernets:
    
    enp2s1:
    
      dhcp4: yes
    
      dhcp6: yes


    Then I created a file /etc/systemd/resolved.conf.d/dns.conf to specify the DNS servers I needed:



    [Resolve]
    
DNS=fd35:2ff0:b0b9:d0c0::1:1 192.168.255.17





    share|improve this answer




























      0














      I'm about halfway to throwing netplan in the bin, but I have a workaround that appears to work.



      Seeing that it was rendering to networkd, and that systemd-resolved was handling DNS, I just created the relevant configuration directly.



      I dropped the dhcp overrides bits from netplan, leaving me with only:



      # For more information, see netplan(5).
      
network:
      
  version: 2
      
  renderer: networkd
      
  ethernets:
      
    enp2s1:
      
      dhcp4: yes
      
      dhcp6: yes


      Then I created a file /etc/systemd/resolved.conf.d/dns.conf to specify the DNS servers I needed:



      [Resolve]
      
DNS=fd35:2ff0:b0b9:d0c0::1:1 192.168.255.17





      share|improve this answer


























        0












        0








        0







        I'm about halfway to throwing netplan in the bin, but I have a workaround that appears to work.



        Seeing that it was rendering to networkd, and that systemd-resolved was handling DNS, I just created the relevant configuration directly.



        I dropped the dhcp overrides bits from netplan, leaving me with only:



        # For more information, see netplan(5).
        
network:
        
  version: 2
        
  renderer: networkd
        
  ethernets:
        
    enp2s1:
        
      dhcp4: yes
        
      dhcp6: yes


        Then I created a file /etc/systemd/resolved.conf.d/dns.conf to specify the DNS servers I needed:



        [Resolve]
        
DNS=fd35:2ff0:b0b9:d0c0::1:1 192.168.255.17





        share|improve this answer













        I'm about halfway to throwing netplan in the bin, but I have a workaround that appears to work.



        Seeing that it was rendering to networkd, and that systemd-resolved was handling DNS, I just created the relevant configuration directly.



        I dropped the dhcp overrides bits from netplan, leaving me with only:



        # For more information, see netplan(5).
        
network:
        
  version: 2
        
  renderer: networkd
        
  ethernets:
        
    enp2s1:
        
      dhcp4: yes
        
      dhcp6: yes


        Then I created a file /etc/systemd/resolved.conf.d/dns.conf to specify the DNS servers I needed:



        [Resolve]
        
DNS=fd35:2ff0:b0b9:d0c0::1:1 192.168.255.17






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 4 hours ago









        Michael HamptonMichael Hampton

        1,040820




        1,040820






























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