How to repair DNS? Super detailed steps and precautions

in the process of daily use of the network, many people have encountered problems such as page loading timeout, domain name inaccessibility, pop-up window display server cannot be found, etc. These failures are likely to be caused by DNS abnormalities. DNS, as the conversion bridge between domain names and Internet Protocol Addresses, will directly affect the network experience once errors or cache accumulation occurs. This article will explain practical solutions to repair DNS from multiple dimensions such as pre-preparation, multi-system operation, and verification methods, so that you can efficiently troubleshoot and solve network failures.

What should be done before repairing DNS?

before fixing DNS, make preparations to avoid operational errors and locate the root cause of the problem more accurately.

1, troubleshooting network hardware failure

first check the running status of the router, light cat and other network hardware, check whether the indicator light flashes normally, try to restart the hardware device, and wait 10 to 15 seconds before reconnecting to the network. If the network is still abnormal after restarting the hardware, then determine that it is a problem at the DNS level to avoid blindly repairing DNS operations.

2 Record the current DNS server address

view and record the current DNS server address, including preferred and alternate addresses, through the system network settings before starting to repair DNS. This way, if new problems occur after repairing DNS, it can be restored to the original settings in time to reduce operational risks.

How to repair DNS on Windows?

Windows system is the mainstream choice of domestic users, the corresponding repair DNS operation steps are clear, suitable for most people to get started.

1, clear the DNS cache

press the Win + R key combination to open the run window, enter cmd and press Enter to open the command prompt, enter ipconfig /flushdns in the window and press Enter, and wait for the system prompt to successfully refresh the DNS resolution cache. This is the most basic operation to repair DNS, which can solve most of the resolution errors caused by cache accumulation.

2, manually change the DNS server address

open the Network and Internet option in the system settings, click WLAN or Ethernet to enter the network properties page, select the Change Adapter option, right-click the currently used network connection to select Properties, find Internet Protocol version 4 and double-click, select Use the following DNS server address, enter the public DNS address such as 114.114.114.114 or 8.8.8.8, click OK to complete the repair of DNS operation.

How to repair DNS on Mac?

Mac the operating logic of the system is different from that of Windows, the steps to repair DNS also have a dedicated path, which is explained in detail below.

1, clear the DNS cache

open the boot desk to find the end point in other folders, enter the corresponding clear command according to the Mac system version, such as Ventura and above enter sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder, press Enter and enter the boot password to complete cache clearance, which is one of the key steps to repair DNS.

2, modify the DNS server address

click the Apple icon in the upper left corner of the screen to select System Settings, find the Network option and click the currently connected network, click the Details button and switch to the DNS tab, click the plus button below, enter the public DNS address you want to use, Delete the original abnormal address and click OK to complete the operation of repairing DNS.

How to verify the effect after repairing DNS?

complete the operation of repairing DNS, you cannot directly default that the problem has been solved, and you need to confirm the repair effect through the verification step.

1, visit common test sites

open the browser to visit several commonly used websites, such as search engines, social platforms, video websites, etc., to see if the webpage can load quickly and whether the domain name can be resolved normally. If multiple websites can be accessed normally, it means that the operation of repairing DNS is initially effective.

2 Test

open the command prompt or end point, enter the ping command plus the commonly used domain name, such as ping www.baidu.com, to see if the Internet Protocol Address and delay data can be returned normally. If the normal IP information can be returned stably, it means that the DNS resolution function has been restored, and the operation of repairing DNS has achieved the desired effect.

To sum up, repairing DNS is the core operation to solve network resolution failures. From the previous hardware troubleshooting and recording of the original address, to the specific repair steps of Windows and Mac systems, and then to the verification of the repaired effect, each link is indispensable. Repair DNS through a standardized process can quickly solve problems such as slow web page loading and inaccessible domain names, so that the network can recover stably and smoothly. When using the network daily, you can also regularly clear the DNS cache to prevent similar failures.