In the previous blog post we introduced several indispensable records in DNS servers, including a, NS, and SOA records. In this blog post we will continue to introduce several other common DNS records, I hope you can understand the DNS helpful.Four MX recordMX records are also known as Mail Exchanger Records, and MX records are used to indicate which server is
DNS domain Name service and build cache DNS server detailed (2)1.DNS Service Installation: BIND, full name is Berkeley Internet name Domain, this software is maintained by ISC/etc/named.conf: The main function is to define the working properties and areas of the bind process/etc/rndc.key: Full name Remote name Domain Controller, primary storage key file/etc/rndc.
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 be delegated through the top-level domain name server or its subordinate Domain Name Server, and the resolution right must be delegated to our
Today when looking at the source code of a website found rel= "dns-prefetch" href= "//static.tuweia.cn/" > A little curious about dns-prefetch, Because more than once to see, today finally can't help to see what he is what technology? Here is a brief description of Dns-prefetch found on the internet.DNS implements domain-to-IP mapping. Through the domain name to
Before you build a DNS server, introduce the terminology in several DNS
1, forward lookup zone: mapping for Computer name to IP address. When a DNS client initiates a request to a DNS server to resolve the IP address of a computer name, the DNS server looks in the forward l
In the previous blog, we introduced the architecture of DNS, the common records, also introduced the configuration of the secondary server, today we will introduce some of the files behind the DNS server. In fact, the work of the DNS server relies on these files, understand the background files of DNS, to better unders
Most DNS cache servers exist in small enterprises. they are not responsible for domain name resolution and are only used to help users query domain name information from other DNS servers. The queried information is saved locally to facilitate the next use of the domain name. it is valid to shorten the domain name query time and save the local information. The following is... information
Most
The previous section mentioned some of the content of the recursive query, but said very little, but also very general, this section will be based on the principle and the case two aspects of DNS recursion and iterative query.
Before that, we need to learn some background to better understand today's topic.
In the Internet, a smooth resolution of a domain name is inseparable from two types of domain name servers, only by the two types of domain name
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 access a website simply by remembering the domain name rather than the IP address. When we enter a URL in the browse
I. Overview:
When listening to the course of yeslab QIN Ke's SecV3 SNF (ASA), the windows host will send a DNS request to the primary DNS and the standby DNS at the same time, so the building environment is ready for verification.
Ii. Basic test ideas and conclusions:
A. Basic Ideas:
① Configure primary DNS and backup
Originally in this verse to explain the installation of DNS, but I found that in fact before this, but also need to explain a few basic concepts, first of all, the DNS suffix.
In the previous basic chapters, we know that a domain name can be divided into the main and suffix 2 parts, where the host we can understand as a host or a network terminal name, the suffix directly determines the nature of the domai
What is DNS hijacking and DNS pollution? Http://blogread.cn/it/article/7758?f=weeklyDescriptionWe know that some network operators for some purposes, some of the DNS operation, resulting in the use of the ISP's normal Internet settings cannot obtain the correct IP address through the domain name. Common means are:DNS hijacking and
Tags: secondary work controller text master-slave DNS use clear LIS OpenRNDC Related knowledge:1. What is RNDC:Remote Name Domain controllerRNDC communicates with the name server via a TCP connection and sends a digitally signed command. In the current version of RNDC and named, the only supported authentication algorithm is HMAC-MD5, which uses shared keys on both ends of the connection. It provides the TSIG type of authentication for the command req
What is DNS
DNS (domain Name System, name Systems), a distributed database that maps to each other as domain names and IP addresses on the Internet, makes it easier for users to access the Internet without remembering the number of IP strings that can be read directly by the machine. The process by which the host name corresponds to the IP address is called Domain name resolution (or host name resolution).
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DNS is the abbreviation for the domain Name System and is a core service of the Internet as a distributed database that maps domain names and IP addresses to each other, making it easier for people to access the Internet without remembering the number of IP strings that can be read directly by the machine. This is also the official statement of DNS
Do not know if you have not used to set up DNS to maximize the speed of computer network optimization, set up DNS everyone is relatively unfamiliar, because generally also rarely mentioned, because the computer is generally the default is to automatically obtain DNS, do not need us to set up, but we should have heard that the computer can be on QQ but not open th
Use bind, dlz, and MySQL to build intelligent DNS. The DNS data can be put into MySQL.
Yum list all | grep BIND contains an SDB package. You can also put our data in the database.
How can I enable the DNS log function? It is not recommended to enable the log function. If the log function is enabled, the DNS performan
Every time we enter any domain name in the browser to access a website, we use the Dns protocol to perform a "Domain Name: IP" query. As a command line user, the Nslookup command is the most widely used dns-related command. As a programmer, taking c # as an example, the ip address of a domain name is probably the same as the line "System. net. dns. getHostByName
DNS viewsWhat are DNS Views (DNS view)?The DNS view is based on different customer sources (referred to as IP), and the DNS server uses different data files to complete the parsing process. In this process, the DNS server is the s
Today, the DNS system has already exceeded the originally set "Address Book" function. With the popularization of the Internet, more and more malicious intrusions and DDoS attacks have emerged. A modern DNS system should be designed to address these issues and provide end users with a fast and easy-to-use interface.The entry point for the DNS system is for the we
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