first, what is DNS.
DNS (domain Name System) is the abbreviation for the name systems, a computer and network service naming system that is organized into a domain hierarchy that is used by TCP/IP networks and provides services for converting host names and domain names to IP addresses. You can think of it as a huge phone book.For example, if you want to access the domain name math.stackexchange.com, first
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 and hard-to-remember IP addresses with user friendly names to locate the corresponding computers and services. Therefore, to enable friendly and friendly names to
DNS is an application-level protocol, and DNS provides a mechanism for translating a human-readable hostname or domain name into a computer or network-readable digital address, making it possible for the wide application of the interconnection network.
I. Basic concepts related to DNS
(1) Domain name and top-level domain
1) Domain name
Domain name is typically t
Create a DNS server on Linux-Linux Enterprise Application-Linux server application information. For more information, see. I. Assumptions
Many DNS articles start with the DNS principle. From the perspective of my use, I will provide some simple and practical application instances for Linux administrators.
The following assumes that we need to build a corporate n
How to empty the DNS cache for LinuxI. Empty DNS cache under Linux There are usually two ways to implement a DNS cache implementation under Linux:One is to manage the DNS cache with the DNS cache program NSCD (Name Service cache daemon).One way to implement
Network communication is mostly based on TCP/IP, while TCP/IP is based on IP address, so the computer can only recognize the IP address such as "202.96.134.133" when communicating on the network, but cannot know the domain name. We can't remember sites with more than 10 IP addresses, so when we visit the site, more is in the browser address bar to enter the domain name, you can see the required page, this is because there is a call "DNS server" comput
Set up DNS service on CentOS 7
Document Description:
This document uses a case study to deploy DNS services on CentOS 7. This case is only a summary of my knowledge about how to deploy the DNS service. It is not a case in the production environment. In addition, the CentOS systems used in this case are all installed in the vmwarevm. Although this is not a problem
DNS spoofing technology principle and Security Protection Technology
Overview: What is DNS spoofing?DNS Spoofing is the art of changing the original IP address of DNS. For better understanding, let's look at an example. If you want to use your browser to search for some information on Google, you can enter www.google.
Tags: file handle relative path CDC receive sbin data notation Windows ASI"The main content of this blog post"
Introduction to bind server (including Introduction to Client Tools Dig)
Configuring forward parsing DNS servers
Configure Reverse resolution DNS server
Configuring a secondary DNS server and implementing zone transfers between prima
The named process on the DNS server is always suspended. Please kindly advise! -- Linux Enterprise Application-Linux server application information. For details, refer to the following section. Jun 2 19:26:10 dns named [22520]: client 10.52.4.71 #37104: RFC 1918 response from Internet for 2.8.52.10.in-addr. arpa
Jun 2 19:26:12 dns named [22520]: client 10.52.4.8
Overview: What is DNS spoofing?DNS Spoofing is the art of changing the original IP address of DNS. For better understanding, let's look at an example. If you want to use your browser to search for some information on google, you can enter www.google.com in the address bar and press Enter.So what is going on behind this? Generally, your browser will send a request
Overview: What is DNS spoofing?
DNS Spoofing is the art of changing the original IP address of DNS. For better understanding, let's look at an example. If you want to use a browser to search for some information on Google, you can enter the information in the address bar without a doubt.
Www.google.com
And press Enter.So what is going on behind this? In general,
DNS Service
DNS: Domain Nsme Service
Role: Resolving the domain name to IP (forward parsing) or resolving IP to a domain name (reverse parsing)
Classification of DNS top-level domains:
Organization domain:. com. net. org .....
Country domain:. CN. tw. JP .....
Reverse domain: Resolve IP to Domain name
DN
This article describes how to use domain Name Services (DNS) in Windows XP by configuring the TCP/IP protocol.
DNS is an Internet service that converts a domain name to an IP address. On the Internet, when you use a domain name during network operations, the DNS service is responsible for converting the domain name to the corresponding IP address. For example, do
REM file name set DNS name server address Bat batch script file. batREM Use set the DNS name server address for the wireless network connectionnetsh interface ip add DNS "Wireless network connection" 8.8.8.8netsh interface ip add DNS "Wireless network connection" 8.8.4.4netsh interface ip add
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 domain names point to the IP Address [65.49.2.178. The first reaction of Ovear is that DNSPOD is hacked again! Why is DNSPOD hacked? In fact, DNSPOD encountered a similar problem before, resulting in all domain
Improve the speed of web pages, generally we will choose to use a CDN, using the "nearest principle" to allow users in the shortest possible time to obtain the server resources, the actual application of the use of CDN to improve the speed of website access is also the most obvious effect. This is why foreign space is far less open than the domestic host's speed of access to the reason.We know that when a user visits a website, the domain DNS resoluti
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 domain names point to the IP Address [65.49.2.178. The first reaction of Ovear is that DNSPOD is hacked again! Why is DNSPOD hacked? In fact, DNSPOD encountered a similar problem before, resulting in all domain names kneeling, just as the Ovear domain name also has several domain names tested there, then, let's talk to a group. As a res
Source: http://369369.blog.51cto.com/319630/812889Most of the network traffic is based on TCP/IP, and TCP/IP is based on the internet, so when the computer communicates on the network, it can only recognize IP addresses such as "202.96.134.133" and not know the domain name. We can not remember more than 10 IP addresses of the site, so when we visit the site, more is to enter the domain name in the browser address bar, you can see the required page, this is because there is a "
This article describes how to use domain Name Services (DNS) in Windows XP by configuring the TCP/IP protocol.
DNS is an Internet service that converts a domain name to an IP address. On the Internet, when you use a domain name during network operations, the DNS service is responsible for converting the domain name to the corresponding IP address. For example, d
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