check website dns records

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Explanation of common DNS records (I): DNS Series II

Http://yuelei.blog.51cto.com/202879/106921 Common DNS records (I)In the previous blog, we introduced the architecture of the DNS server, from which we learned that if we want to register a domain name, then, the domain name that we apply for must

Dns settings in linux

For details about dns settings in linux-Linux Enterprise Application-Linux server application, see the following. ① Introduction DNS is the Domain Name System, which can convert a Domain Name such as www.21php.com to an IP address such as 211.152.50.

From the DNS base to centos6.5, "playing" builds a support for forward and reverse resolution"

1. What is DNS? (Domain Name System) domain name system. In fact, the functions implemented by DNS are very simple and effective, so that users do not need to remember the IP addresses that frequently access the server, you can directly access the

North-South intercommunication no worries about dual-line DNS Creation

What is DNS Domain Name System (DNS) is an English abbreviation of "Domain Name System". It is a computer and network service naming System organized into a Domain hierarchy. It is used for TCP/IP networks, it is mainly used to replace the boring

DNS attack principle and Prevention

With the gradual popularization of networks, network security has become the focus of the INTERNET. It is related to the further development and popularization of the INTERNET, and even to the survival of the INTERNET. Fortunately, our INTERNET

Check whether the local DNS server works properly and the Solution

This article describes how to check whether the local DNS server works normally and how to update it. When we access a website, we directly enter the domain name in the browser, for example, www.webweb.com, when a website fails to be accessed

Analysis of DNS principles and resolution process (image and text)

Most network communication is based on TCP/IP, while TCP/IP is based on IP addresses. Therefore, when a computer communicates over the network, it can only identify IP addresses such as "202.96.134.133, but cannot recognize the domain name. We

The beginning, end, and analysis of DNS pollution nationwide in January 21, 2014

The beginning, end, and analysis of DNS pollution nationwide in January 21, 2014 Ovear was debugging a new server at around on June 30, January 21, and it was found that it suddenly failed .. Ping the following command and find that all Ovear

Introduction to DNS query process and DNS Process

Introduction to DNS query process and DNS Process Reprinted please indicate the source: http://blog.csdn.net/luotuo44/article/details/45545059 DNS (domain name system) is a system that can convert domain names to IP addresses. This allows us to

DNS resolution failure

Document directory   The customer called at last night and said that the website could not be accessed. He immediately ran up, entered the domain name, and asked my friend to enter it.Change access from IP address OK, DNS problem. I came to the

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