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Surfing in IPv4

Windows – Add alternative DNS

When a computer connects to the Internet, To browse the web using domain names you need to contact machines that are capable of translating the IP addresses with which the computers identify each other to the web names that we, the humans, we use to go to the pages we want. That task is fulfilled by DNS servers (Domain Name Service). The internet access provider (ISP) We configure a series of DNS servers by default in the router, but these do not always have all the names in their tables, and sometimes they are too slow. To get around these problems, DNS services can be configured on each machine so that we can use custom name servers., this is especially useful for working in local networks with their own domains, but it is also useful to improve Internet speed and even to be able to access alternative domains such as .libre or .geek.

In Debian we have configured it in the Network Manager, but in Windows it is different. These are the steps to configure DNS in windows 10, in previous versions access to the control panel is different, but the network device configuration is the same.

  • To access the configuration options, click with the secondary mouse button on the icon that looks like a computer with a cable in the lower right part of the desktop, also called notification area. We will select with the main mouse button the option “Open Internet Settings”
  • We will double click on the option “Change adapter options”
  • It will show us the list of connections that we have available, in other versions of windows we can access the same site from the control panel “network configuration” or from My PC. We will select “Ehternet”, which is the one that usually comes by default, usually we will only have one connection, if there are several, we should consult with the technician who configured the equipment in case of doubt.
  • With double click or by opening a drop-down with the secondary button and selecting “Properties” We will be shown a dialog that shows the status of the connection and buttons to configure it. We will press “Properties”
  • A dialog with a list of devices and protocols will be shown., we are only interested in protocols “IPv4” e “IPv6”. The only difference that we will see when configuring them will be that the IPv6 and IPv6 addresses have different formats.
  • Selecting the protocol to configure (in the screenshots I only show “Internet Protocol Version 4 (TCP/IPv4)” since IPv6 is practically the same) and pressing the bottom right “Properties”, we will get another dialogue.
  • In the protocol properties dialog we will mark the option “Use the following DNS server addresses” to tell the system that we will not need the DNS provided by the router, but the ones that we will introduce. After that we will press the button “Advanced Options”. The rest of the options we will not touch.
  • The advanced options dialog will show us three tabs, we will select the DNS tab, the rest we don't need to touch.
  • In the DNS tab we will add ours by pressing “Add”, which will open a dialog to enter the IP.
  • For me, the most comfortable thing is to have the page of the DNS servers service that we are going to use open in the browser to copy the ones that we are going to use from the list of DNS servers. In our case we will use Open nic, It's not the only one, but it's the one I like the most. We can also write in the notepad a text file with the list of servers or the option that is most comfortable for us.
  • On the main page of Open Nic we will see two lists of IPs, on the left the IPv4 ´ of the closest DNS servers and on the right the list of the IPv6 DNS servers. We will select the IP we need, we will copy them with “Ctrl+v” or the copy option from the secondary mouse dropdown.
  • And we will paste the copied IP in the field that the advanced configuration dialog offers us.
  • We will jump “Add” and we have already added the IP of the DNS server
  • We will repeat the process for each IP that we want to add and to exit we will press “To accept” in the dialogues that we have opened.
  • We will proceed in a similar way with the IPv6 protocol in case our ISP gives us access to it.
  • To activate the configuration, just “To accept” in the first dialogue, if it doesn't seem to have been activated or we want to be sure, with the right mouse button on the selected icon of the active network, we will activate the option “deactivate”, we will wait for it to turn gray and then we will reactivate it with double click or the drop-down of the secondary mouse button.

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