Standard DNS servers. Possible errors and how to fix them

Your ISP offers its own DNS servers, which help turn websites such as www.. Your devices use them by default, but you can configure your preferred DNS servers to improve your connection speed.

Many DNS servers can also block malware, pornography, and other types of websites. The latter is up to you.

DNS Server Speed ​​Test

If you're looking for something faster than your ISP's DNS servers, we recommend running DNS check to find what's best for your connection. Most fast DNS server will depend on your geographic location and ISP, so we really can't recommend finding the fastest DNS for you.

Many DNS providers focus on speed, and this is their big selling point. But only running a test will tell you what is fastest for you.

We recommend using free tool Check the Domain Name Speed ​​Benchmark if you are looking for the fastest DNS server on Windows or Linux ( Mac users should check Namebench).

Simply download DNS Benchmark, run it (no installation required), select the Nameservers tab and click Run Benchmark. It will check the top 72 DNS servers. Once this is done, it will even suggest testing 5,000 public DNS servers and finding the top 50 for your connection. Of course it will take longer.

For the most accurate results, make sure the Benchmark DNS tool is the only thing running on your internet connection during tests (so turn off Netflix streaming, online games, or other downloads that might be using your internet).

For example, in the benchmark we used a single connection, we saw that the fastest third-party DNS servers were OpenDNS, followed by UltraDNS, followed by Google Public DNS.

There is one problem with this tool. There's a good chance that your ISP's DNS servers may be the fastest for your connection because they are physically located near you. However, DNS does not test your ISP's DNS servers.

In the screenshot above, for example, it actually says that our router is "The Local Network Namesaver" - the fastest DNS server. This is because he is physically present in our local network and can immediately return cached results. However, your router will use the ISP's DNS servers. This provider's DNS servers are compared with these third-party DNS servers.

To check this, you need to log into your router's DNS servers. Every router is a little different, but we found this in the Internet Status section on our ASUS router.

In DNS Benchmark, you can click the Usernames tab, click the Add/Remove button. Enter the IP address of the first DNS server and click Add to add it to the list. You can then enter the second DNS server address and click Add.

After that, click "Run Benchmark" to run the test with your ISP's DNS servers. We found that Comcast's servers were the fastest for our Comcast connection, which isn't surprising.

However, even if your ISP's servers are the fastest, you can still switch to a different DNS server that provides filtering malware, parental controls and other features. It helps to know how quickly other options are available.

If you are looking for a fast DNS server

Some DNS servers don't offer many features and simply focus on providing quick, fast, and accurate results.

Google Public DNS was created by Google to provide a fast, secure alternative DNS server. It provides raw, unfiltered results. Google promises that it will not correlate with Google services.

OpenDNS Home is being configured. So while OpenDNS offers anti-malware and other web filtering features, you can create a free account and configure the exact filtering that will take place on your connection. If OpenDNS is fast, you can use it with or without filtering. OpenDNS promises not to share your information with any party.

There is also Layer 3 DNS, which operates on Layer 3, which provides the basic connections that connect ISPs around the world. Many ISPs actually rely on Layer 3 DNS. Layer 3 does not publicly advertise its DNS service, but anyone can point their systems to Layer 3 DNS servers and use them. Layer 3 DNS can be very fast for some connections.

Verisign also provides its own public DNS server. It also doesn't block anything and promises that it won't sell your DNS data to third parties.

The NeuStar DNS server, formerly known as UltraDNS, also provides raw results if you want them. However, if it's fast on your internet connection - and this was one of the fastest on ours

DNS, also known as Domain Name System, is a domain name system. This system associates website names with IP addresses corresponding to pages on that site.

A DNS server is a computer on the Internet that stores information about these matches. We wrote more about what DNS is and how a DNS server works in.

DNS and website loading speed

Depending on the selected DNS server, the loading speed of Internet pages may differ, since the Internet provider's server is most often used as the DNS server. Often such DNS servers very busy serving a large number of user requests. Therefore, some large companies have registered alternative DNS servers that work independently of the main ones and can completely replace them. The most popular alternative DNSs are DNS addresses servers Google: "8.8.8.8" and "8.8.4.4". Any user can connect to them.

To increase page loading speed, you can change the DNS server to one whose response speed is faster. In this case, you can choose both free and paid DNS servers. An overview of recommended public DNS servers is given in.

To change the DNS to the selected one, use. Changing DNS on Android devices is different from DNS changes on Windows.

Android is one of the famous operating systems for mobile devices. This is an open operating system - anyone can make changes to the software and release their own firmware.

Changing DNS on Android Devices Without Getting Super User Rights

Without super user rights, you can change DNS only in the Wi-Fi connection properties. In this case, the DNS will have to be changed on every connection you use.

To do this, open “Settings” and select Wi-Fi settings. Long press the name of the network you are setting up and the settings menu will open. Click on "Connect to a network".

In the window that opens, check the “Show additional options” checkbox.

This will open the connection properties. Select “IP Settings” – Static.

This will make the IP and DNS fields available for completion. Enter the addresses of the DNS servers you selected in the DNS fields. After filling out all the fields, click “Connect”.

Changing DNS on Android devices with super user rights

If you have super user rights (root rights), you can use applications for DNS changes. The application will allow you to apply the specified parameters to everyone Wi-Fi connections and mobile data connections (3G and 4G). As you remember, without super user rights, it is impossible to change mobile data transfer settings. An example of such applications are: DNS Changer, Set DNS and others. After installation, you need to log into the application and set DNS server addresses manually or select DNS providers from the list.

Using Android devices with root rights, remember that the developers of the operating Android systems and applications are moving away from supporting rooted smartphones. Thus, to install updates and most applications, very soon you will have to restore the device to its original state.

In addition to increasing the speed of loading pages on the Internet, the need to change DNS may also arise when a user wants to increase his anonymity on the Internet, or access to a site is limited to users from a certain country.

No matter what reason you decide to change DNS on your Android device, our article will help you do this quickly and easily. To check the DNS server address used on this moment, use our

But for now we'll just talk about why you might want to change your DNS server.

Speed ​​increase possible

Third-party DNS servers may be faster than your ISP's DNS servers. This is not guaranteed, it will depend on your geographical location - how close to you are third party servers DNS and how slow your ISP's DNS servers are.

If all you need is just good speed, you may or may not see benefits from switching to a third-party DNS server. To find out for sure, you should run a DNS benchmarking tool like Namebench, which will make DNS queries to your current DNS server and other DNS servers, checking how long each of those servers takes to respond.

Popular third party services DNS providers such as Google Public DNS or OpenDNS may be faster for you. If so, Namebench will let you know.

Please note that Namebench cannot evaluate the effectiveness of each factor. For example, Google Public DNS and OpenDNS participate in , which allows participating DNS services to learn your IP address and respond from IP addresses that are closer to you, thereby increasing communication speeds. Other DNS servers, like those offered by your ISP, are not as adept at implementing such new technologies.

Possible improvement in reliability

This is closely related to the speed improvement opportunity already noted. If your ISP doesn't care too much about keeping its DNS servers fast and stable, you may experience periods where websites fail to load or load very slowly due to DNS lookups taking too long. If your ISP is not doing its job properly, switching to third party DNS server can bring you greater reliability.

Parental control

If you have young children and want to set up web filtering, there are many different ways you can do this. One of the most simple ways web filtering settings is to change your DNS servers to OpenDNS servers. Change the DNS server on your router and you can configure the settings parental controls on the OpenDNS website, which will allow you to block certain categories of websites and view websites accessible from your home network.

This is especially convenient because once you change the settings on your router and set up parental controls on the OpenDNS website, the settings will apply to every device on your home network - PCs running any operating system, game consoles, smartphones, tablets, etc. When a DNS request for the IP address of such a website has been sent, OpenDNS returns a different IP address. The user's browser connects to this address and receives a message that the website they are trying to access has been blocked.

Please note that this is not very reliable. A user on your network can simply change their device's DNS server to bypass filtering. Young children won't be able to do this, but teenagers might - just like most other parental controls.

Phishing protection

OpenDNS also performs filtering to block phishing sites. U modern browsers there is built-in protection against phishing, but if you work on a network that includes computers with Windows XP and Internet Explorer 6, then using OpenDNS will give all these computers some protection against identity theft that they would not otherwise have.

Other DNS services do not offer this feature. For example, Google Public DNS does not include content filtering functionality because it aims to function simply as a fast DNS service without any frills.

Means of protection

Third-party DNS servers, such as OpenDNS and Google Public DNS, also offer security features that many providers' DNS servers have not yet implemented. For example, Google Public DNS supports DNSSEC to ensure that DNS requests are properly signed and are trustworthy. Your provider's DNS servers may not yet have such security features implemented.

If SOPA had been passed, no US DNS servers would have supported DNSSEC because SOPA would have outlawed DNSSEC. If Americans wanted the benefits of DNSSEC, they would be forced to use foreign DNS servers.

Accessing geo-blocked content

Special third-party DNS servers may also allow you to access certain geo-restricted content. For example, by switching to Unblock-Us you can access media like Netflix, Hulu and BBC iPlayer no matter where in the world you are. When your computer makes a DNS query, the DNS service does some tunneling to make the service assume that you are somewhere else in the world. This convenient opportunity, because it allows you to reach these services from any device just by changing the DNS server on your router.

You shouldn't use free service as your primary DNS service - switching to it is bound to slow down your web browsing. If you use one of these, you'll need to use a tool like DNS Jumper to fast switching on it when you need it, and switch back when you're done.

And they work in the same way and do not have this limitation, but on the other hand, you will have to pay for them.

Bypassing web censorship

Some ISPs and governments only block websites at the DNS level. For example, an ISP can “block” example.com by redirecting its ingress DNS to another website. If a website is blocked by this method, replacing your DNS server with a third-party DNS service that does not block the website will allow you to access it. As an example, we can cite an incident that occurred at a time when The Pirate Bay was blocked in the UK. People could change their DNS servers so they could use it again.

Please note that websites are often blocked at the IP level, so this will not always work. For example, a firewall uses many techniques to block websites, including DNS blocking.

Namebench includes an option that tests DNS servers for censorship to determine whether the output of current DNS servers is censored.

If you want to change DNS servers, then you will probably want to change the DNS server on your router, which will affect your entire home network. You can also change the DNS server on a single computer, which will only affect that specific computer.

What DNS services do you use? For what purpose? Share your experience and settings in the comments.

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“How to find out the provider’s DNS server,” - this question can sometimes arise both from experienced users and from people solving their problem with network access. This may occur if you need to configure Internet access via internal network, using a specific DNS server address, rather than an automatically determined address. Typically, this may be necessary if some difficulties constantly arise with the dynamic address pool. This connection is more stable and allows you to set up DSL access without interruptions in the line.

The most simple option The way to find out your DNS provider is to call support. Operators usually provide two addresses that you can enter into your network settings. If for some reason this cannot be done, use our tips below.

Administrator's advice! If there is a problem with network access. Perhaps the DNS address determination service is not working correctly, as a result you will have physical access to the network, but without access to the Internet through the browser. This can be fixed by simply restarting the computer; experienced users can restart the service and restore the network via the http protocol.

How DNS works

The principle of operation of DNS (Domain Name Services) is well demonstrated in the illustration. The user sends the usual text name of the site and in response receives an IP address through which access to a specific resource is already available. DNS is global network server-routers providing serial connection to the server system and access.

Administrator's advice! Regular users there is no need to configure network parameters and clarify the DNS provider and other sites. But for general development, you need to know that each text name is associated with a specific IP address, for example, 78.1.231.78.

DNS spoofing is a classic hacker attack

Experienced users will be interested in familiarizing themselves with the diagram of servers that provide access to the Internet. There is also a DNS server that routes user traffic on the side of your provider.

Administrator's advice! Please note that if you spoof the DNS server, you may be able to connect to a “fake” site. Using this interface, passwords and data are stolen credit cards. This issue is usually resolved when installing an antivirus program. software, which includes protection against such “traffic eavesdropping”.

DNS provider

As we said, to configure network connection The provider's DNS address is required. Usually there are several of them, especially for large telecommunication systems to which many users connect. Usually, you can find out the primary and secondary DNS in the support service; these servers duplicate each other when things are going wrong huge pressure when users connect.

Determining the DNS provider from your network

The easiest way to do this is when there is a network and Internet access, or the same can be done from a subscriber who is also served in your provider network. For these purposes, follow the instructions:

• Launch Command Prompt by clicking the Start menu, then Run, and typing in CMD line(lowercase);
• in the window that opens command line type ipconfig/all;
• in the report you will receive a list of DNS addresses;
• the received addresses can be physically registered in the network settings; in this case, access to the network will work stably even if the automatic detection of DNS servers fails.

This method helps make network access more stable; in fact, you assign a permanent DNS server with a backup address. Both servers will route your requests on the Internet.

Screenshots

Examples are shown in the screenshots. In the first case, standard server addresses are indicated. In the second case, reserve and additional. IN this option users have access to three backup servers.

Report after running the ipconfig /all command with one DNS mirror

Report after running the ipconfig /all command with two DNS mirrors

Alternative ways to find provider DNS addresses

If you do not have access to the network, the support service does not provide direct DNS addresses and you cannot get them in any other way, try searching through an Internet search. This can be done using search engine And keywords“DNS addresses (name of your provider).” In some cases, this information may be posted on the official website of the telecommunications company or in forums by users.