How to clear DNS cache
During daily Internet surfing, DNS caching may cause network access to slow down or errors occur for various reasons. Cleaning the DNS cache is one of the effective ways to solve this kind of problem. This article will introduce in detail how to clear the DNS cache, and attach the hot topics and hot content in the past 10 days for reference.
1. What is DNS cache?
DNS cache is a domain name resolution record stored by a computer or router to speed up subsequent visits to the same website. However, when DNS records expire or errors occur, clearing the cache becomes necessary.
2. How to clear DNS cache
Here are the steps to clear DNS cache under different operating systems:
| operating system | Cleaning method |
|---|---|
| Windows | 1. Open Command Prompt (CMD) 2. Enter the command:ipconfig /flushdns 3. Press Enter key to execute |
| macOS | 1. Open the terminal 2. Enter the command:sudo dscacheutil -flushcache 3. Enter the password and execute |
| Linux | 1. Open the terminal 2. Enter the command:sudo systemd-resolve --flush-caches 3. Press Enter key to execute |
| router | 1. Log in to the router management interface 2. Find the DNS or network settings option 3. Choose to clear the DNS cache or restart the router |
3. Hot topics and hot content in the past 10 days
The following are the hot topics and hot content on the entire network in the past 10 days (as of October 2023):
| hot topics | heat index | Main content |
|---|---|---|
| New breakthroughs in artificial intelligence | ★★★★★ | OpenAI releases new model, triggering heated discussion in the industry |
| world cup qualifiers | ★★★★☆ | Teams from many countries advance, and fans’ attention soars |
| global climate change | ★★★★☆ | Extreme weather occurs frequently, and environmental issues become the focus again |
| Technology giant financial reports | ★★★☆☆ | Apple, Microsoft and other companies announce quarterly results |
| New film and television works online | ★★★☆☆ | Many popular TV series and movies spark discussions |
4. Why do you need to clear the DNS cache?
Cleaning the DNS cache can help solve the following problems:
1.Website access slows down: Expired DNS records can cause resolution delays.
2.Unable to access specific website: DNS cache errors can prevent normal access.
3.network security issues: Malicious DNS hijacking may spread via cache.
5. Summary
Cleaning DNS cache is a simple but effective network maintenance operation that works on most operating systems and devices. Through regular cleaning, you can ensure the smoothness and security of network access. At the same time, paying attention to hot topics and hot content can also help us understand the latest technological and social trends.
I hope this article can help you troubleshoot DNS caching issues and provide you with valuable information!
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