Hướng dẫn sửa lỗi "your dns server might be unavailable"

The tên miền Name System (DNS) server is where all of the tên miền names for the sites you’ve visited are stored. When searching a tên miền name in a web browser, it is forwarded by your router lớn a DNS server. If the particular site’s tên miền name has been saved, it then returns the corresponding IP address. This makes the loading process for those sites particularly faster.

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As great as this process is, it’s not uncommon for the DNS hệ thống to fail khổng lồ establish a connection from time khổng lồ time. Attempting to troubleshoot your website browser in this instance can often result in a ‘DNS vps not responding’ error.






Close out of the Command Prompt window and reboot your system.Flushing Your DNS (MacOS)

You can also flush the DNS on a Mac. The way in which you bởi vì this will vary slightly depending on the version of Mac your computer is running. It often only involves a change in the syntax used during the process.

Open a Finder window và then head into Applications, followed by Utilities, and ending in the Terminal.Enter in the following syntax pertaining to lớn the version of MacOS you’re currently using:MacOS High Sierra – sudo killall -HUP mDNSResponder; sleep 2; echo macOS DNS Cache Reset | sayMacOS Sierra – sudo killall -HUP mDNSResponder;say DNS cache has been flushedMacOS Mojave – sudo killall -HUP mDNSResponder;sleep 2;MacOS X El Capitan/Yosemite – sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder;say cache flushedPress the Return key, enter your password, và then hit the Return key once more.Await the audio alert that indicates a successful DNS flush before exiting the Terminal.

The MacOS X cache clearing will need a few added steps in order to fully flush it out. You’ll have lớn flush both MDNS và UDNS caches on đứng top of the steps previously taken.

Before exiting from the Terminal, perform the following commands:

For the MDNS cache, type sudo discoveryutil mdnsflushcacheFor the UDNS cache, type sudo discoveryutil udnsflushcachesRemove Multiple Antiviruses

“You can never have too much protection.” This may be somewhat true in the real world, but in the world of technology, having multiple antivirus programs installed on the same computer can actually hinder the protection provided.

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Check lớn see if you have two or more antivirus programs currently running as this may be the reason for the DNS issue. Once you disable all additional programs, reboot your system và the problem should resolve itself.

Ensure that moving forward you only keep a single software program running khổng lồ help defend yourself from unwanted malware attacks. This not only increases security but can help you avoid running into more DNS hệ thống errors.

Changing DNS Servers

The process for this is very simple & can be done in a few clicks, depending on where you choose to lớn change it. We’ll be using the Windows operating system in each of our examples.

DNS Changes via RouterAccess your router by launching your web browser and entering the default Gateway address into the URL bar.You can find the mặc định Gateway by opening a Command prompt window, typing ipconfig, & pressing Enter. Copy the numbers located beside default Gateway in the pulled up information.Login lớn the router using the proper credentials.Locate your internet tài khoản information which can often be found in a similarly named tab.Enter the address of the DNS hệ thống you want to use in place of the current one.Save the edited information and exit the router interface.DNS Changes via Windows OSAccess your network connection properties by launching the Run function (Windows key + R) & typing in ncpa.cpl. Press Enter.Windows 10 users can right-click the Windows icon at the lower left of the desktop screen và select Network Connections from the menu.Select the network adapter currently in use. WLAN for WiFi connections and LAN for direct connection, usually via ethernet cable.Windows 10 will have your options on the left side panel. Select one & choose Change adapter options from the main window.Right-click your choice & select Properties.In the Networking tab, highlight your IP version (v4 or v6) from the menu và click the Properties button.Enter in the DNS hệ thống addresses you plan khổng lồ use.If you had been using a previous DNS hệ thống not obtained automatically, remember lớn annotate the addresses just in case you want khổng lồ return using them at a later date.Finalize the changes by clicking OK.Test New DNS Server

Once the DNS servers have been changed, mở cửa a browser & attempt to lớn launch a well-known site like www.google.com. If the site is immediately accessible, then the new DNS is functioning properly. If not, enter one of Google’s IP addresses,, directly into your browser và hit Enter.

Wait for the familiar Google logo sản phẩm and search bar khổng lồ appear. If this also fails, then the problem may lie with the internet & not the DNS hệ thống itself. Tương tác your internet service provider for additional help if this is the case.

Former US Army IT communications specialist who began his online blogging career in 2016. Joseph has over 10 years experience in the IT industry as both an analyst and communications expert. He"s a night owl và an avid Red Bull consumer who spends most of his downtime enthralled by online gaming và website building. Read Joseph"s Full Bio