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Where can I force a specific DNS server to be used on OS X?



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Change DNS Server From Terminal (or script) on Mac OS XVPN messes up DNS resolutionSetup DNS server on a Leopard machine?where to find used dns settingsHow can I set up a 'local' domain so that everyone on my local network can view a locally hosted site?Where can I learn about DNS settingsBrowsing specific website with specific DNS serverHow to force DNS for specific clients?Dns server for specific domainObtain Specific Preferred DNS ServerUsing specific dns server for specific domainsForce DNS Server on network





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}







5















On OS X Leopard, scutil gives me



$ scutil --dns
DNS configuration

resolver #1
nameserver[0] : 192.168.1.1
nameserver[1] : 192.168.2.1
order : 200000

resolver #2
domain : local
options : mdns
timeout : 2
order : 300000

...


Now, how do I remove the first "resolver #1" and replace with a DNS server of my choosing?





Context: A VPN client sets this bogus DNS entry on connection, replacing my working DNS settings. I haven't been able to figure out how to stop it from doing so (see here), so now I'm trying to remove this unwanted effect ex-post, after I connect. A command line script to do this would be perfect.



I tried sudo scutil as per instructions here, but no love -- scutil --dns still reports the settings unchanged, and DNS resolution still doesn't work. Modifying /etc/resolv.conf has no effect on OS X.










share|improve this question

























  • Did you try that? Mac OS X Lion, /etc/hosts Bugs, and DNS Resolution

    – user149200
    Jul 30 '12 at 17:58




















5















On OS X Leopard, scutil gives me



$ scutil --dns
DNS configuration

resolver #1
nameserver[0] : 192.168.1.1
nameserver[1] : 192.168.2.1
order : 200000

resolver #2
domain : local
options : mdns
timeout : 2
order : 300000

...


Now, how do I remove the first "resolver #1" and replace with a DNS server of my choosing?





Context: A VPN client sets this bogus DNS entry on connection, replacing my working DNS settings. I haven't been able to figure out how to stop it from doing so (see here), so now I'm trying to remove this unwanted effect ex-post, after I connect. A command line script to do this would be perfect.



I tried sudo scutil as per instructions here, but no love -- scutil --dns still reports the settings unchanged, and DNS resolution still doesn't work. Modifying /etc/resolv.conf has no effect on OS X.










share|improve this question

























  • Did you try that? Mac OS X Lion, /etc/hosts Bugs, and DNS Resolution

    – user149200
    Jul 30 '12 at 17:58
















5












5








5


1






On OS X Leopard, scutil gives me



$ scutil --dns
DNS configuration

resolver #1
nameserver[0] : 192.168.1.1
nameserver[1] : 192.168.2.1
order : 200000

resolver #2
domain : local
options : mdns
timeout : 2
order : 300000

...


Now, how do I remove the first "resolver #1" and replace with a DNS server of my choosing?





Context: A VPN client sets this bogus DNS entry on connection, replacing my working DNS settings. I haven't been able to figure out how to stop it from doing so (see here), so now I'm trying to remove this unwanted effect ex-post, after I connect. A command line script to do this would be perfect.



I tried sudo scutil as per instructions here, but no love -- scutil --dns still reports the settings unchanged, and DNS resolution still doesn't work. Modifying /etc/resolv.conf has no effect on OS X.










share|improve this question
















On OS X Leopard, scutil gives me



$ scutil --dns
DNS configuration

resolver #1
nameserver[0] : 192.168.1.1
nameserver[1] : 192.168.2.1
order : 200000

resolver #2
domain : local
options : mdns
timeout : 2
order : 300000

...


Now, how do I remove the first "resolver #1" and replace with a DNS server of my choosing?





Context: A VPN client sets this bogus DNS entry on connection, replacing my working DNS settings. I haven't been able to figure out how to stop it from doing so (see here), so now I'm trying to remove this unwanted effect ex-post, after I connect. A command line script to do this would be perfect.



I tried sudo scutil as per instructions here, but no love -- scutil --dns still reports the settings unchanged, and DNS resolution still doesn't work. Modifying /etc/resolv.conf has no effect on OS X.







macos dns osx-leopard






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 20 '17 at 10:17









Community

1




1










asked Mar 28 '12 at 19:14









user124114user124114

2651512




2651512













  • Did you try that? Mac OS X Lion, /etc/hosts Bugs, and DNS Resolution

    – user149200
    Jul 30 '12 at 17:58





















  • Did you try that? Mac OS X Lion, /etc/hosts Bugs, and DNS Resolution

    – user149200
    Jul 30 '12 at 17:58



















Did you try that? Mac OS X Lion, /etc/hosts Bugs, and DNS Resolution

– user149200
Jul 30 '12 at 17:58







Did you try that? Mac OS X Lion, /etc/hosts Bugs, and DNS Resolution

– user149200
Jul 30 '12 at 17:58












4 Answers
4






active

oldest

votes


















1














Well, most VPN connections I am aware of are able to push a DNS server to the VPN client. My suggestion would be to ask your VPN provider to not push the DNS server for your connection.
Please note that this might have some negative impact on your VPN session.






share|improve this answer
























  • thank you, but unfortunately that's not possible. So the OS offers no way for me to use a DNS server of my choice on my computer?

    – user124114
    Mar 28 '12 at 20:06











  • Hm, OS X is still Unix. You could modifiy the /etc/resolf.conf (or the adequate counterpart of it in Unix) after you established the VPN connection. Another way might be to set an immutable bit on the file.

    – Valentin
    Mar 28 '12 at 20:34











  • Unfortunately, in OS X /etc/resolv.conf is auto-generated and changing it has no effect.

    – user124114
    Mar 28 '12 at 20:43



















1














In my experience if you specify a particular DNS server in Network preferences, even if you're using DHCP, Mac OS uses that server in preference to the one obtained through DHCP. So if you always want to use 192.168.1.1, put that in explicitly.



System Preferences -> Network -> Ethernet (left pane) should produce a window that has a "DNS Server:" text box you can fill in with the IP address of your desired DNS server. Click "Apply" to apply the change, and you're done; you shouldn't have to make this change again. (If your VPN connection is WiFi instead of Ethernet, then you should click on that instead of Ethernet above.)






share|improve this answer
























  • Thanks, I tried this. But after connecting the VPN client, the bad DNS server is still set (overwriting the previous, working one), and I still don't know how to get rid of it :(

    – user124114
    Mar 31 '12 at 12:02





















0














For temporary override on command line you can do:



sudo networksetup -setdnsservers Wi-Fi <dnsserver1ip> <dnsserver2ip>


and reset settings with:



sudo networksetup -setdnsservers Wi-Fi empty


If connected with some other interface than Wi-fi you can check valid names with:



sudo networksetup -listallnetworkservices





share|improve this answer








New contributor




Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




























    -1














    You should have your vpn set up in your network. I have private internet access and have it manually installed in my network. My network shows Airport, Ethernet and Private Internet access.



    To change my dns:




    • click on your vpn network

    • hit advanced and in options "send all traffic over VPN" should be checked

    • click the DNS tab and add your dns in the box. If you don't put any dns servers it will push to your ethernet dns settings.


    • Now to check if you are running on your dns ccp this in terminal:



      scutil --dns | grep nameserver[[0-9]*]







    share|improve this answer


























      Your Answer








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      4 Answers
      4






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      4 Answers
      4






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      1














      Well, most VPN connections I am aware of are able to push a DNS server to the VPN client. My suggestion would be to ask your VPN provider to not push the DNS server for your connection.
      Please note that this might have some negative impact on your VPN session.






      share|improve this answer
























      • thank you, but unfortunately that's not possible. So the OS offers no way for me to use a DNS server of my choice on my computer?

        – user124114
        Mar 28 '12 at 20:06











      • Hm, OS X is still Unix. You could modifiy the /etc/resolf.conf (or the adequate counterpart of it in Unix) after you established the VPN connection. Another way might be to set an immutable bit on the file.

        – Valentin
        Mar 28 '12 at 20:34











      • Unfortunately, in OS X /etc/resolv.conf is auto-generated and changing it has no effect.

        – user124114
        Mar 28 '12 at 20:43
















      1














      Well, most VPN connections I am aware of are able to push a DNS server to the VPN client. My suggestion would be to ask your VPN provider to not push the DNS server for your connection.
      Please note that this might have some negative impact on your VPN session.






      share|improve this answer
























      • thank you, but unfortunately that's not possible. So the OS offers no way for me to use a DNS server of my choice on my computer?

        – user124114
        Mar 28 '12 at 20:06











      • Hm, OS X is still Unix. You could modifiy the /etc/resolf.conf (or the adequate counterpart of it in Unix) after you established the VPN connection. Another way might be to set an immutable bit on the file.

        – Valentin
        Mar 28 '12 at 20:34











      • Unfortunately, in OS X /etc/resolv.conf is auto-generated and changing it has no effect.

        – user124114
        Mar 28 '12 at 20:43














      1












      1








      1







      Well, most VPN connections I am aware of are able to push a DNS server to the VPN client. My suggestion would be to ask your VPN provider to not push the DNS server for your connection.
      Please note that this might have some negative impact on your VPN session.






      share|improve this answer













      Well, most VPN connections I am aware of are able to push a DNS server to the VPN client. My suggestion would be to ask your VPN provider to not push the DNS server for your connection.
      Please note that this might have some negative impact on your VPN session.







      share|improve this answer












      share|improve this answer



      share|improve this answer










      answered Mar 28 '12 at 19:51









      ValentinValentin

      801614




      801614













      • thank you, but unfortunately that's not possible. So the OS offers no way for me to use a DNS server of my choice on my computer?

        – user124114
        Mar 28 '12 at 20:06











      • Hm, OS X is still Unix. You could modifiy the /etc/resolf.conf (or the adequate counterpart of it in Unix) after you established the VPN connection. Another way might be to set an immutable bit on the file.

        – Valentin
        Mar 28 '12 at 20:34











      • Unfortunately, in OS X /etc/resolv.conf is auto-generated and changing it has no effect.

        – user124114
        Mar 28 '12 at 20:43



















      • thank you, but unfortunately that's not possible. So the OS offers no way for me to use a DNS server of my choice on my computer?

        – user124114
        Mar 28 '12 at 20:06











      • Hm, OS X is still Unix. You could modifiy the /etc/resolf.conf (or the adequate counterpart of it in Unix) after you established the VPN connection. Another way might be to set an immutable bit on the file.

        – Valentin
        Mar 28 '12 at 20:34











      • Unfortunately, in OS X /etc/resolv.conf is auto-generated and changing it has no effect.

        – user124114
        Mar 28 '12 at 20:43

















      thank you, but unfortunately that's not possible. So the OS offers no way for me to use a DNS server of my choice on my computer?

      – user124114
      Mar 28 '12 at 20:06





      thank you, but unfortunately that's not possible. So the OS offers no way for me to use a DNS server of my choice on my computer?

      – user124114
      Mar 28 '12 at 20:06













      Hm, OS X is still Unix. You could modifiy the /etc/resolf.conf (or the adequate counterpart of it in Unix) after you established the VPN connection. Another way might be to set an immutable bit on the file.

      – Valentin
      Mar 28 '12 at 20:34





      Hm, OS X is still Unix. You could modifiy the /etc/resolf.conf (or the adequate counterpart of it in Unix) after you established the VPN connection. Another way might be to set an immutable bit on the file.

      – Valentin
      Mar 28 '12 at 20:34













      Unfortunately, in OS X /etc/resolv.conf is auto-generated and changing it has no effect.

      – user124114
      Mar 28 '12 at 20:43





      Unfortunately, in OS X /etc/resolv.conf is auto-generated and changing it has no effect.

      – user124114
      Mar 28 '12 at 20:43













      1














      In my experience if you specify a particular DNS server in Network preferences, even if you're using DHCP, Mac OS uses that server in preference to the one obtained through DHCP. So if you always want to use 192.168.1.1, put that in explicitly.



      System Preferences -> Network -> Ethernet (left pane) should produce a window that has a "DNS Server:" text box you can fill in with the IP address of your desired DNS server. Click "Apply" to apply the change, and you're done; you shouldn't have to make this change again. (If your VPN connection is WiFi instead of Ethernet, then you should click on that instead of Ethernet above.)






      share|improve this answer
























      • Thanks, I tried this. But after connecting the VPN client, the bad DNS server is still set (overwriting the previous, working one), and I still don't know how to get rid of it :(

        – user124114
        Mar 31 '12 at 12:02


















      1














      In my experience if you specify a particular DNS server in Network preferences, even if you're using DHCP, Mac OS uses that server in preference to the one obtained through DHCP. So if you always want to use 192.168.1.1, put that in explicitly.



      System Preferences -> Network -> Ethernet (left pane) should produce a window that has a "DNS Server:" text box you can fill in with the IP address of your desired DNS server. Click "Apply" to apply the change, and you're done; you shouldn't have to make this change again. (If your VPN connection is WiFi instead of Ethernet, then you should click on that instead of Ethernet above.)






      share|improve this answer
























      • Thanks, I tried this. But after connecting the VPN client, the bad DNS server is still set (overwriting the previous, working one), and I still don't know how to get rid of it :(

        – user124114
        Mar 31 '12 at 12:02
















      1












      1








      1







      In my experience if you specify a particular DNS server in Network preferences, even if you're using DHCP, Mac OS uses that server in preference to the one obtained through DHCP. So if you always want to use 192.168.1.1, put that in explicitly.



      System Preferences -> Network -> Ethernet (left pane) should produce a window that has a "DNS Server:" text box you can fill in with the IP address of your desired DNS server. Click "Apply" to apply the change, and you're done; you shouldn't have to make this change again. (If your VPN connection is WiFi instead of Ethernet, then you should click on that instead of Ethernet above.)






      share|improve this answer













      In my experience if you specify a particular DNS server in Network preferences, even if you're using DHCP, Mac OS uses that server in preference to the one obtained through DHCP. So if you always want to use 192.168.1.1, put that in explicitly.



      System Preferences -> Network -> Ethernet (left pane) should produce a window that has a "DNS Server:" text box you can fill in with the IP address of your desired DNS server. Click "Apply" to apply the change, and you're done; you shouldn't have to make this change again. (If your VPN connection is WiFi instead of Ethernet, then you should click on that instead of Ethernet above.)







      share|improve this answer












      share|improve this answer



      share|improve this answer










      answered Mar 28 '12 at 21:16









      Kyle JonesKyle Jones

      5,59621729




      5,59621729













      • Thanks, I tried this. But after connecting the VPN client, the bad DNS server is still set (overwriting the previous, working one), and I still don't know how to get rid of it :(

        – user124114
        Mar 31 '12 at 12:02





















      • Thanks, I tried this. But after connecting the VPN client, the bad DNS server is still set (overwriting the previous, working one), and I still don't know how to get rid of it :(

        – user124114
        Mar 31 '12 at 12:02



















      Thanks, I tried this. But after connecting the VPN client, the bad DNS server is still set (overwriting the previous, working one), and I still don't know how to get rid of it :(

      – user124114
      Mar 31 '12 at 12:02







      Thanks, I tried this. But after connecting the VPN client, the bad DNS server is still set (overwriting the previous, working one), and I still don't know how to get rid of it :(

      – user124114
      Mar 31 '12 at 12:02













      0














      For temporary override on command line you can do:



      sudo networksetup -setdnsservers Wi-Fi <dnsserver1ip> <dnsserver2ip>


      and reset settings with:



      sudo networksetup -setdnsservers Wi-Fi empty


      If connected with some other interface than Wi-fi you can check valid names with:



      sudo networksetup -listallnetworkservices





      share|improve this answer








      New contributor




      Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.

























        0














        For temporary override on command line you can do:



        sudo networksetup -setdnsservers Wi-Fi <dnsserver1ip> <dnsserver2ip>


        and reset settings with:



        sudo networksetup -setdnsservers Wi-Fi empty


        If connected with some other interface than Wi-fi you can check valid names with:



        sudo networksetup -listallnetworkservices





        share|improve this answer








        New contributor




        Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
        Check out our Code of Conduct.























          0












          0








          0







          For temporary override on command line you can do:



          sudo networksetup -setdnsservers Wi-Fi <dnsserver1ip> <dnsserver2ip>


          and reset settings with:



          sudo networksetup -setdnsservers Wi-Fi empty


          If connected with some other interface than Wi-fi you can check valid names with:



          sudo networksetup -listallnetworkservices





          share|improve this answer








          New contributor




          Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.










          For temporary override on command line you can do:



          sudo networksetup -setdnsservers Wi-Fi <dnsserver1ip> <dnsserver2ip>


          and reset settings with:



          sudo networksetup -setdnsservers Wi-Fi empty


          If connected with some other interface than Wi-fi you can check valid names with:



          sudo networksetup -listallnetworkservices






          share|improve this answer








          New contributor




          Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          share|improve this answer



          share|improve this answer






          New contributor




          Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          answered yesterday









          Mikael LepistöMikael Lepistö

          1011




          1011




          New contributor




          Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.





          New contributor





          Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          Mikael Lepistö is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.























              -1














              You should have your vpn set up in your network. I have private internet access and have it manually installed in my network. My network shows Airport, Ethernet and Private Internet access.



              To change my dns:




              • click on your vpn network

              • hit advanced and in options "send all traffic over VPN" should be checked

              • click the DNS tab and add your dns in the box. If you don't put any dns servers it will push to your ethernet dns settings.


              • Now to check if you are running on your dns ccp this in terminal:



                scutil --dns | grep nameserver[[0-9]*]







              share|improve this answer






























                -1














                You should have your vpn set up in your network. I have private internet access and have it manually installed in my network. My network shows Airport, Ethernet and Private Internet access.



                To change my dns:




                • click on your vpn network

                • hit advanced and in options "send all traffic over VPN" should be checked

                • click the DNS tab and add your dns in the box. If you don't put any dns servers it will push to your ethernet dns settings.


                • Now to check if you are running on your dns ccp this in terminal:



                  scutil --dns | grep nameserver[[0-9]*]







                share|improve this answer




























                  -1












                  -1








                  -1







                  You should have your vpn set up in your network. I have private internet access and have it manually installed in my network. My network shows Airport, Ethernet and Private Internet access.



                  To change my dns:




                  • click on your vpn network

                  • hit advanced and in options "send all traffic over VPN" should be checked

                  • click the DNS tab and add your dns in the box. If you don't put any dns servers it will push to your ethernet dns settings.


                  • Now to check if you are running on your dns ccp this in terminal:



                    scutil --dns | grep nameserver[[0-9]*]







                  share|improve this answer















                  You should have your vpn set up in your network. I have private internet access and have it manually installed in my network. My network shows Airport, Ethernet and Private Internet access.



                  To change my dns:




                  • click on your vpn network

                  • hit advanced and in options "send all traffic over VPN" should be checked

                  • click the DNS tab and add your dns in the box. If you don't put any dns servers it will push to your ethernet dns settings.


                  • Now to check if you are running on your dns ccp this in terminal:



                    scutil --dns | grep nameserver[[0-9]*]








                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Feb 19 '14 at 16:36









                  Andrea

                  1,43631316




                  1,43631316










                  answered Feb 19 '14 at 15:25









                  ralphralph

                  1




                  1






























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